Owner`s manual | Canon PC800S Camcorder User Manual

GPSMAP 376C
®
chartplotting receiver
owner’s manual
190-00508-00_0C.indd 1
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© 2006 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151st Street,
Olathe, Kansas 66062, USA
Tel. 913/397.8200 or 800/800.1020
Fax 913/397.8282
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate,
Romsey, SO51 9DL, UK
Tel. +44 (0) 870.8501241 (outside the UK)
0808 2380000 (UK only)
Fax 44/0870.8501251
Garmin Corporation
No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
Tel. 886/2.2642.9199
Fax 886/2.2642.9099
All rights reserved. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any
storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual onto
a hard drive or other electronic storage medium to be viewed and to print one copy of this manual or of any revision hereto, provided that such electronic or printed
copy of this manual must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any
revision hereto is strictly prohibited.
Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to make changes in the content
without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www.garmin.com) for current updates and
supplemental information concerning the use and operation of this and other Garmin products.
Garmin®, GPSMAP®, AutoLocate®, TracBack®, BlueChart®, and MapSource® are registered trademarks of Garmin Ltd. or its subsidiaries and may not be used without
the express permission of Garmin.
October 2006
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Part Number 190-00508-00 Rev. C
Printed in Taiwan
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INTRODUCTION > ABOUT THIS MANUAL
INTRODUCTION
Thank you for choosing the Garmin® GPSMAP® 376C, which uses
the proven performance of Garmin GPS and full-featured mapping
to create an unsurpassed portable marine navigation chartplotter
and automobile navigation device. Take a moment to compare
the contents of this package with the packing list on the outside
of the box; if any pieces are missing, contact your Garmin dealer
immediately.
About This Manual
To get the most out of your new navigation system, read this manual
and learn the operating procedures for your unit. This manual is
organized into the following sections:
The Introduction contains the Table of Contents, Care Information,
and Warnings.
The Automotive Mode section provides you with information about
navigating with the GPSMAP 376C.
The Automotive Mode Pages section reviews the main pages in
Automotive Mode.
The Main Menu section describes features found on the Main
Menu, and information on how to change settings.
The Using XM WX Weather section describes how to use XM WX
Satellite Weather features on your GPSMAP 376C.
The Setting Up and Using Sonar section provides instructions
on using a Garmin GSD 20 or GSD 21 Sounder Module with your
GPSMAP 376C.
The Appendix contains specifications, optional accessories,
maintenance information, and other product information.
An Index is provided at the end of the manual for reference.
The Getting Started section provides an overview of the unit, how
to turn the unit on, and how to simulate navigation.
The Marine Mode section provides you with information about
navigating with the GPSMAP 376C in Marine Mode.
The Marine Mode Pages section reviews the main pages in Marine
Mode.
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INTRODUCTION > TABLE OF CONTENTS
Table of Contents
Introduction...........................................................................i
About This Manual ................................................................... i
Caring for the GPSMAP 376C ................................................ iv
Warnings .................................................................................. v
Important Information ............................................................ vi
Getting Started.....................................................................1
Unit Overview .......................................................................... 1
Charging the GPSMAP 376C .................................................. 2
Turning Your GPSMAP 376C On or Off ................................. 3
Adjusting the Backlight and Volume ..................................... 3
Getting Satellite Signals ......................................................... 4
Using the GPSMAP 376C Keypad .......................................... 7
Using the GPSMAP 376C ........................................................ 8
Using Simulator Mode .......................................................... 12
Marine Mode.......................................................................13
Marine Mode Pages ............................................................... 13
Navigating to a Destination .................................................. 14
Finding an Item ...................................................................... 17
Creating and Using Routes .................................................. 20
Creating and Using Waypoints ............................................ 24
Managing Your Tracks .......................................................... 34
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Marine Mode Pages ...........................................................38
Compass Page....................................................................... 45
Highway Page ........................................................................ 48
Active Route Page ................................................................. 50
Position Data Page ................................................................ 51
XM Audio Page ...................................................................... 52
Automotive Mode ..............................................................56
Automotive Mode Pages....................................................... 56
Navigating to a Destination .................................................. 57
Following an Automotive Route........................................... 63
Automotive Mode Pages ...................................................64
Map Page................................................................................ 64
Current Route Page............................................................... 65
Trip Computer Page .............................................................. 66
Main Menu ..........................................................................67
Main Menu Tabs ..................................................................... 67
GPS Tab .................................................................................. 68
Weather Tab ........................................................................... 68
XM Tab .................................................................................... 69
Route Tab ............................................................................... 70
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INTRODUCTION > TABLE OF CONTENTS
Points Tab .............................................................................. 70
Track Tab ................................................................................ 71
DSC Tab .................................................................................. 71
Sonar Tab ............................................................................... 75
Alarms Tab ............................................................................. 76
Calendar Tab .......................................................................... 78
Celestial Tab .......................................................................... 79
Message Tab .......................................................................... 83
Display Tab ............................................................................ 84
Sound Tab .............................................................................. 85
Using XM WX Weather ......................................................95
Viewing XM WX Weather....................................................... 95
Setting XM WX Weather Options ......................................... 95
Using the Weather Tab .......................................................... 98
Finding Weather Information ............................................. 101
Setting Up and Using Sonar ...........................................103
Showing Sonar on the Map Page....................................... 103
Using the Sonar Page ......................................................... 104
Setting Up Sonar ................................................................. 108
Understanding Sonar .......................................................... 112
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Appendix ..........................................................................115
Specifications ...................................................................... 115
Optional Accessories .......................................................... 116
Installation Information....................................................... 117
Satellite Information ............................................................ 122
What is Differential GPS (DGPS)? ..................................... 122
LORAN TD Setup ................................................................. 124
Map Datums and Location Formats .................................. 126
Digital Selective Calling (DSC) ........................................... 127
Messages ............................................................................. 129
Data Field Options............................................................... 131
Software License Agreement ............................................. 133
Product Registration ........................................................... 134
FCC Compliance.................................................................. 134
Limited Warranty ................................................................. 135
Weather Data Warranty ....................................................... 136
Index .................................................................................138
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INTRODUCTION > CARING FOR THE GPSMAP 376C
Caring for the GPSMAP 376C
The GPSMAP 376C case is constructed of high quality materials
and does not require user maintenance except cleaning.
Cleaning the Case
Clean the unit’s outer casing (except for the screen) using a cloth
dampened with a mild detergent solution and then wipe dry.
Avoid chemical cleaners and solvents that might damage plastic
components.
Cleaning the Screen
The GPSMAP 376C screen should be cleaned using a soft, clean,
lint-free cloth. Water, isopropyl alcohol, or eyeglass cleaner can be
used if needed. If these are used, apply the liquid to the cloth and
then gently wipe the screen with the moistened cloth.
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Storage
Do not store the GPSMAP 376C where prolonged exposure to
temperature extremes might occur (such as in the trunk of a car)
as permanent damage could result. User information, such as
waypoints and routes are retained in the unit’s memory without
the need for external power. It is always a good practice to back up
important user data by manually recording it or downloading it to a
computer (transferring it to MapSource).
Water Immersion
The GPSMAP 376C is waterproof to IEC Standard 60529 IPX7.
It can withstand immersion in 1 meter of water for 30 minutes.
Prolonged submersion can cause damage to the unit. After
submersion, be certain to wipe and air dry the unit before reuse or
charging.
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INTRODUCTION > WARNINGS
Warnings
Failure to avoid the following potentially hazardous situations could
result in an accident or collision resulting in death or serious injury.
•
•
When installing the unit in a vehicle, place the unit securely so that
it does not obstruct the driver’s view of the road or interfere with
vehicle operating controls, such as the steering wheel, foot pedals,
or transmission levers. Do not place in front of or above any airbag.
(See diagram).
Do not mount
where driver’s
field of vision is
blocked.
Do not place
unsecured on
the vehicle
dashboard.
Do not mount in front of an airbag
field of deployment.
•
When navigating, carefully compare information displayed on the
unit to all available navigation sources, including information from
street signs, visual sightings, and maps. For safety, always resolve
any discrepancies or questions before continuing navigation and
defer to posted road signs.
•
•
•
Always operate the vehicle in a safe manner. Do not become
distracted by the unit while driving, and always be fully aware
of all driving conditions. Minimize the amount of time spent
viewing the unit’s screen while driving and use voice prompts
when possible. Do not input destinations, change settings, or access
any functions requiring prolonged use of the unit’s controls while
driving. Pull over in a safe and legal manner before attempting such
operations.
This unit is designed to provide route suggestions. It is not designed
to replace the need for driver attentiveness regarding road closures
or road conditions, traffic congestion, weather conditions, or other
factors that may affect safety while driving.
Use the electronic chart in the unit only to facilitate, not to replace,
the use of authorized government charts. Official government charts
and notices to mariners contain all information needed to navigate
safely.
Use this unit only as a navigational aid. Do not attempt to use the
unit for any purpose requiring precise measurement of direction,
distance, location, or topography.
WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive
harm. This Notice is provided in accordance with California’s Proposition 65. See www.garmin.com/prop65 for more information.
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INTRODUCTION > IMPORTANT INFORMATION AND BATTERY WARNINGS
Important Information
MAP DATA INFORMATION: One of the goals of Garmin is to provide
customers with the most complete and accurate cartography that is available
to us at a reasonable cost. We use a combination of governmental and private
data sources, which we identify in product literature and copyright messages
displayed to the consumer. Virtually all data sources contain some inaccurate or
incomplete data. In some countries, complete and accurate map information is
either not available or is prohibitively expensive.
The California Electronic Waste Recycling Act of 2003 requires the
recycling of certain electronics. For more information on the applicability to
this product, see www.erecycle.org.
Battery Warnings
If these guidelines are not followed, the internal lithium-ion battery may
experience a shortened life span or may present a risk of damage to the GPS
unit, fire, chemical burn, electrolyte leak, and/or injury.
•
Contact your local waste department to properly dispose of the unit/
battery.
• Do not leave the unit exposed to a heat source or in a high temperature
location, such as in the sun in an unattended vehicle on a hot day. To
prevent damage, remove the unit from the vehicle or store it out of
direct sunlight, such as in the glove box.
• Do not incinerate.
• When storing the unit for a limited length of time, store within the
following temperature range: -4˚ to 140˚F (-20˚ to 60˚C). When storing
the unit for an extended time, store within the following temperature
range: 32˚ to 77˚F (0˚ to 25˚C).
• Do not operate the unit outside of the following temperature range:
-4˚ to 131˚F (-20˚ to 55˚C).
NOTE: Refer to the Specifications section to determine if the lithium-ion
battery in your specific Garmin product is replaceable.
If this unit contains a replaceable, rechargeable lithium-ion battery, the
following warnings also apply:
•
•
•
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Do not recharge the battery out of the unit or disassemble the battery.
Keep the used battery away from children. Do not disassemble,
puncture, or damage the battery.
Only replace with a Garmin lithium-ion battery pack. Using another
battery presents a risk of fire or explosion. To purchase a replacement
battery, see your Garmin dealer or the Garmin Web site.
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GETTING STARTED > UNIT OVERVIEW
GETTING STARTED
Unit Overview
The GPSMAP 376C is an all-in-one, versatile color chartplotter and automobile navigator—perfect for land or water. This portable GPS
navigator features a 256-color TFT display that is easy to read in bright sun, a built-in basemap, and auto routing to provide you with
automatically generated turn-by-turn directions. With the included GXM 30 antenna and a subscription to XM WX Satellite Weather, boaters
will have constant access to NEXRAD radar, lightning, wind speed, wave direction, and more. In addition, the GPSMAP 376C offers XM
Satellite Radio capabilities featuring more than 150 digital channels of commercial-free music; more than 30 channels of news, sports, talk,
and entertainment; and more than 20 dedicated channels of XM Instant Traffic & Weather.
GPS antenna
256-Color TFT display
with backlighting
Detachable GPS antenna
collapses for storage.
Be sure the antenna
is up (as shown
here) to receive
satellite signals. See
the “Appendix”,
page 121, for
instructions on
removing the
antenna.
Battery pack. Press tab down
to remove battery pack for
replacement, if necessary.
External power
connector under
weather cap
Backlit keypad for easy nighttime operation
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USB/GXM 30
antenna connector
under weather cap
Slot for optional data card
Serial number
Headphone/stereo jack
under weather cap
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GETTING STARTED > CHARGING THE GPSMAP 376C
Charging the GPSMAP 376C
Before using the GPSMAP 376C, you might need to charge the
battery. Plug the power cable into an external power source to
charge. You can use the unit while it is charging.
To charge the unit’s battery:
1. Lift the rubber weather cap to expose the power connector
on the back of the unit. See the image on page 1 for
connector location.
2. Align the notches and push the plug into the connector until
fully seated.
3. Plug the 12-Volt adapter into an available AC outlet, or
cigarette lighter receptacle if you have a cigarette lighter
adapter. Use care when routing the cable; make sure it does
not interfere with vehicle operation. The unit begins charging
as soon as external power is applied.
TIP: Placing the unit in Charge Mode charges the unit more
quickly than when the unit is turned on and reduces draw on the
vehicle/vessel battery.
When you turn on the GPSMAP 376C the power source indicator on
the GPS tab shows the unit is operating off battery power (
),
that the unit is charging (
), or that an external power source is
in use (
).
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Using Charge Mode
If you want to charge the battery when you are not using the unit,
you can put the unit into Charge Mode.
To put the GPSMAP 376C in charge mode:
1. Connect the GPSMAP 376C to an external power supply.
2. Press and hold the POWER key. Instead of completely
turning off, the GPSMAP 376C goes into Charge Mode.
NOTE: While in Charge Mode, the GPSMAP 376C draws a
small amount of current from the vehicle/vessel battery. To avoid
discharging the vehicle’s battery, disconnect the external power
cable from the unit when not in use for several days.
Over time, you might notice that the lithium-ion battery in the unit
is not holding a charge any more. This is common for lithium-ion
batteries. Contact Garmin or your Garmin dealer to order a battery
pack replacement if you are experiencing battery charging issues.
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GETTING STARTED > TURNING YOUR GPSMAP 376C ON OR OFF AND ADJUSTING THE BACKLIGHT AND VOLUME
Turning Your GPSMAP 376C On or Off
Before you turn on the GPSMAP 376C, be sure the antenna is up as
shown on page 1, and it has a clear and unobstructed view of the sky
to receive satellite signals.
The first time you turn on your GPSMAP 376C, the GPS receiver
must collect satellite data and establish its current location. To
ensure proper initialization, the GPSMAP 376C is shipped from
the factory in AutoLocate mode, which allows the receiver to “find
itself” anywhere in the world.
To turn the GPSMAP 376C on and off:
1. Press and hold the POWER key. When the unit turns on, a
tone sounds and the Warning Page appears.
Adjusting the Backlight and Volume
You can adjust the backlight to see the screen better. If you are
using the external speaker with 12/24-Volt adapter cable with
the GPSMAP 376C, or you have headphones plugged into the
headphone jack, you can adjust the volume level of the audio output.
To adjust the backlight level or volume:
1. Press and quickly release the POWER key.
2. Press up on the ROCKER to increase the brightness or
press down to decrease. Press right to raise the volume or
left to lower.
3. Press ENTER or QUIT to close the Backlight/Volume
adjustment window.
Battery time remaining and power source indicator
Warning Page
2. Read the warning, and then press ENTER to continue.
3. To turn off the GPSMAP 376C, press and hold the POWER
key again.
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Backlight
adjustment slider
Volume
adjustment slider
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GETTING STARTED > GETTING SATELLITE SIGNALS
Getting Satellite Signals
After you turn on the GPSMAP 376C, the unit automatically begins
searching for satellites. The GPS page appears while the unit is
gathering satellite signals and acquiring a fix, which should take
only a few minutes. While the GPSMAP 376C is getting satellite
signals, the GPS page shows the status as “Acquiring Satellites”.
GPS Tab
NOTE: While acquiring satellites, the Map Page might show
the wrong location, such as China. You need to wait a few more
minutes to acquire satellites and find your current location.
As the receiver locks onto satellites, a signal strength bar appears
for each satellite in view, with the appropriate satellite number
underneath each bar. The numbers below each bar represent the
particular satellite that is being received. Numbers above 33 indicate
WAAS satellites.
The sky view shows a bird’s eye view of the position of each
satellite relative to the receiver’s last known position. The outer
circle represents the horizon (north up), the inner circle represents
45º above the horizon, and the center point represents a position
directly overhead. You can also set the sky view to a Track Up
configuration, causing the top of the sky view to align along your
current track heading. Press MENU to change the configuration of
the sky view.
Receiver
status field
Signal
strength bars
Sky view
Power
source
indicator
Viewing GPS Status
The GPS tab provides a visual reference of satellite acquisition,
receiver status, and accuracy. The sky view and signal strength bars
show what satellites are visible to the receiver and whether they are
being tracked.
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GPS Page
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GETTING STARTED > GETTING SATELLITE SIGNALS
The progress of satellite acquisition is shown in three stages:
• No signal strength bars—the receiver is looking for the
satellites indicated.
• White signal strength bars—the receiver has found the
satellite and is collecting data.
• Green signal strength bars—the receiver has collected the
necessary data from this satellite.
When the GPSMAP 376C collects the necessary data from the best
satellites in view to calculate a fix, the status field indicates the
status of the receiver. The unit updates the location, date, and time.
Receiver Status
The Receiver Status field shows one of the following conditions:
• Searching the Sky—the receiver is looking for satellites.
• AutoLocate—the receiver is looking for any satellite whose
almanac was collected, which can take up to five minutes.
• Acquiring Satellites—the receiver is looking for and
collecting data from satellites visible at its last known or
initialized location but has not acquired a fix.
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• 2D GPS Location—At least three satellites were acquired
and a two-dimensional position fix was calculated.
“2D Differential” appears when you are receiving DGPS
corrections in 2D mode, and a “D” appears on the strength bar
of satellites being corrected.
• 3D GPS Location—At least four satellites were acquired
and a three-dimensional fix was calculated. “3D Differential”
appears when you are receiving DGPS corrections in
3D mode, and a “D” appears on the strength bar of satellites
being corrected.
• Lost Satellite Reception—the receiver is no longer tracking
enough satellites for a 2D or 3D fix.
• Receiver Not Usable—the receiver is unusable, possibly due
to interference or abnormal satellite conditions. Turn the unit
off and back on to reset it.
• Simulating GPS—the receiver is in Simulator Mode.
• GPS Off—the GPS receiver is turned off.
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GETTING STARTED > GETTING SATELLITE SIGNALS
GPS Options
Press MENU twice to open the Main Menu. Use the ROCKER to
highlight the GPS tab. Press MENU to open the options menu.
GPS Tips
While the receiver is gathering information, your location on the
map might appear different from where you actually are located.
As soon as the receiver gathers enough satellite information, your
proper location appears on the map.
Any time you have traveled more than 600 miles with the GPS
receiver turned off, the receiver might take longer than normal to
initialize and find your location.
Start/Stop Simulator—starts and stops Simulator Mode, which is
helpful when learning how to use your unit.
The GPS receiver can lose satellite signals due to interference from
such items as buildings, tunnels, and heavy tree cover. Monitoring
the GPS status is recommended.
To learn about GPS, visit www.garmin.com/aboutGPS/.
Enable/Disable WAAS—enables or disables WAAS capability. See
page 123 of the “Appendix” for more information about WAAS.
Track Up Skyview/North Up Skyview—orients the sky view
display on the GPS page to North up or Track up.
New Altitude—allows you to manually enter your altitude.
New Location—allows you to enter a new location automatically or
using the map.
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GETTING STARTED > USING THE GPSMAP 376C KEYPAD
Using the GPSMAP 376C Keypad
.
PAGE/MODE
Key
• Press to cycle through main pages in sequence and
exit a submenu page.
• Press and hold to switch between Marine and
Automotive Modes.
QUIT Key
• Press to cycle through main pages in reverse
sequence, revert to the previous value in a data
entry field, or cancel an unintended function.
ENTER/MARK Key
• Press to select a highlighted option.
• Press and hold to mark your current location as a
waypoint.
MENU/Wx Key
• Press to open the options menu for the current page.
• Press twice to show the Main Menu.
• Press and hold to toggle XM WX weather on or off
on the Map Page.
POWER Key
• Press and hold to turn the unit on or off.
• Press and release to adjust the backlighting and
external speaker volume.
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IN Key/OUT Key
• Press to adjust map scale to show a larger area with
less detail (zoom out) or a smaller area with more
detail (zoom in).
ROCKER
• Press up, down, left, or right to highlight options
and to enter data, or use to pan the arrow on the
Map Page.
NAV/MOB Key
• Press to show the Navigate Menu.
• In Marine Mode, press and hold to start the MOB
function.
In Automotive Mode, press and hold to show the
Next Turn page and announce the next turn when
using the external speaker.
FIND Key
• Press to quickly search for and access user
waypoints, cities, and other items used for
navigation.
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GETTING STARTED > USING THE GPSMAP 376C
Using the GPSMAP 376C
The advanced keypad system on the GPSMAP 376C is designed to
allow you to select options and enter data quickly and conveniently.
As you progress through this owner’s manual, you are directed to
press a specific key or highlight a field on the screen. When you
are directed to press a key, you should press and quickly release the
key. If the key needs to be held down for a period of time to start a
secondary function, the instructions tell you to do so. When a field is
selected on the screen, it is highlighted in yellow.
• Default—the factory setting saved in the unit’s memory. You
can change the settings, but you can also revert to the factory
(default) settings when you select Restore Defaults.
Field
The following terms are used throughout this manual:
• Highlight—move the highlighted area on the screen up,
down, left, or right with the ROCKER to select individual
fields. Moving the highlight to a given location allows you to
make a selection, begin data entry, or scroll through a list.
• Field—the location on a page where data or an option can
be shown and entered. Select (highlight) a field using the
ROCKER to begin entering data or selecting options.
• On-screen button—use the ROCKER to highlight a button
and press ENTER to select the button.
• Scroll bar—when viewing a list of items too long to appear
on the screen, a scroll bar appears along the right side of
the list. To scroll through a list, press up or down on the
ROCKER.
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Highlighted field
On-screen buttons
Cartography
The GPSMAP 376C has a built-in worldwide database. The unit
shows cartography as long as chart information is available for the
zoom scale you selected.
Optional preloaded Garmin data cards and MapSource CD-ROMs
enhance the versatility of your GPSMAP 376C. With optional
MapSource BlueChart information and BlueChart g2 you can view
information that is not already preloaded.
See the Garmin Web site at www.garmin.com/cartography/ for
compatible MapSource products.
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GETTING STARTED > USING THE GPSMAP 376C
Selecting Options and Entering Data
To enter data and select options use the ROCKER to highlight,
select, or choose an item in a list or a field on the screen. Use the
ENTER key and the ROCKER to select options, enter names and
numbers in data fields, and activate your selections.
To select an optional feature:
To exit a menu or return to the previous setting:
Press QUIT. The QUIT key moves backward through your
steps. Press QUIT repeatedly to return to the starting page.
To select an on-screen button:
On a page with on-screen buttons, use the ROCKER to
highlight an on-screen button, and press ENTER.
1. From any page, press MENU. An options menu shows a list
of optional features specific to that page.
On-screen
button
To mark your current location as a waypoint, press and hold
ENTER/MARK until the New Waypoint Page opens.
2. Use the ROCKER to move the highlight up, down, right, or
left on the menu to the option you want to select.
3. Press ENTER to select the feature. Another window with
more options might appear. If so, select an option and press
ENTER again.
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To enter data in a data field:
1. Use the ROCKER to highlight the data field you want, and
press ENTER to edit it.
2. Press up or down on the ROCKER to select characters.
Press right to move to the next character or press left to
move back to the previous character. If there are two lines of
data, keep pressing right on the ROCKER to go to the next
line.
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GETTING STARTED > USING THE GPSMAP 376C
Restoring Default Settings
Entering
data
You can restore factory defaults for the following Main Menu tabs:
Track, Alarms, Display, Sound, and Setup. For more information
about the Main Menu, see the “Main Menu” section beginning on
page 67.
To restore default settings:
TIP: To clear the entire data field, highlight the left-most
character field and press left on the ROCKER again.
1. Press MENU twice to open the Main Menu.
2. Use the ROCKER to highlight a tab, and then press MENU to
open the options menu.
3. Press ENTER.
Not all fields are programmable. When you are on a page with fields
that are not selectable, the highlight skips over them.
Setup Tab Options Menu
3. Highlight Restore Default, and press ENTER.
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GETTING STARTED > USING THE GPSMAP 376C
Using the Main Menu
Use the Main Menu on your GPSMAP 376C to access various
waypoint, system, navigation and interface management, and setup
menus. Press the MENU key twice from any page to open the Main
Menu. For more information, see the “Main Menu” section on
page 67.
By default, the Main Menu tabs are shown as icons along the left
side of the screen. You can change the Main Menu to show tabs in a
text-only format.
To view the Main Menu icons in text-only format:
1. Highlight the Display tab, and press ENTER.
2. Select the Main Menu field. Press ENTER.
3. Highlight Text Only, and press ENTER.
Main Menu
To select a tab from the Main Menu:
1. From any page, press MENU twice to open the Main Menu.
2. Press up or down on the ROCKER to highlight a tab. The
information for the highlighted tab automatically appears
on the right. To highlight a sub tab, press left or right on the
ROCKER, and then press up or down to select individual
fields.
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GETTING STARTED > USING SIMULATOR MODE
Using Simulator Mode
GPS tab
Simulator Mode is great for practicing with the unit if you are
indoors or when satellite signals are not available. All waypoints and
routes created in Simulator Mode are retained in memory for future
use.
By unplugging the GXM 30 antenna and placing the unit in
Simulator Mode, you can view simulated weather information.
NOTE: Do not try to navigate using Simulator Mode. When the
unit is set to Simulator Mode, the GPS receiver is turned off.
Any satellite signal strength bars shown are only simulations and
do not represent the strength of actual satellite signals.
To turn on Simulator Mode:
1. Highlight the GPS tab on the Main Menu.
2. Press MENU to open the GPS tab options menu.
3. Highlight Start Simulator, and press ENTER.
Starting Simulator Mode from the GPS tab
1.
2.
3.
4.
5.
Highlight the GPS tab on the Main Menu.
Press MENU to open the options menu.
Highlight New Location, and press ENTER.
Highlight Use Map, and press ENTER.
Use the ROCKER to move the panning arrow to the location
you want on the map, and press ENTER.
Entering a New Location
Use the GPS options menu to enter a new location from which to
simulate.
To enter a new location using the map:
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MARINE MODE > MARINE MODE PAGES
MARINE MODE
This section explains some of the more common operations you will perform with your GPSMAP 376C.
To switch usage modes:
1. Press and hold the PAGE/MODE key. The Usage Mode Menu appears.
2. Select Automotive or Marine, and press ENTER.
Marine Mode Pages
Marine Mode has five main pages: Map, Compass, Highway, Active Route, and Position Data. An optional XM Audio Page can be enabled.
And an optional Sonar Page is available when GSD 21 or GSD 20 is connected. See the “Setting Up and Using Sonar” section beginning on
page 90 for more information.
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Map Page
Compass Page
Highway Page
Active Route Page
Position Data Page
XM Audio Page
(Optional)
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MARINE MODE > NAVIGATING TO A DESTINATION
Navigating to a Destination
You can navigate to your destination using the Map Page. As you
travel, you see a magenta line that always runs from your current
location to the destination or to the next turn on the Map Page. You
can use the Map Page, Compass Page, Highway Page, and Position
Data Page to help navigate.
Navigate Options Menu
Press NAV to open the Navigate options menu.
You can navigate to a destination using one of the following
methods:
• Select a point on the map and press the NAV key (page 15).
• Press the NAV key to navigate a new route using the Find
Menu, or to navigate a saved route or track (page 21).
• Press the FIND key to search for a particular item and create
a route to it (page 17).
Marine Mode and Automotive Mode are similar. Most of the
features discussed here also apply to Automotive Mode.
Navigate Menu in Marine Mode
Go To Point—allows you to select a waypoint or point of interest
from the Find Menu to which to navigate.
Navigate Route—allows you to select a route to navigate. You can
also start a saved route through the Routes tab on the Main Menu.
For information about routes, see page 20.
Navigate Track (TracBack)—allows you to select a saved track to
navigate. You can also start a saved track through the Track tab of
the Main Menu. For information about tracks, see page 34.
MOB (Man OverBoard)—creates a MOB waypoint and navigates
to that location. For more information about MOB, see page 16.
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MARINE MODE > NAVIGATING TO A DESTINATION
To navigate (Go To) a point on the map:
1. On the Map Page, highlight a point to navigate to, and press
NAV.
2. Highlight Go To <point name>, and press ENTER.
To start a new route using the Find Menu:
1. Press the NAV key to open the Navigate Menu.
2. Highlight Go To Point (or New Route when in Automotive
Mode), and press ENTER to open the Find Menu.
3. From the Find Menu, highlight Waypoints, and press
ENTER.
4. Select a waypoint from the list, and press ENTER to open the
Waypoint Review Page.
Navigate Menu
3. Follow the magenta route created on the Map Page.
To stop navigation:
1. While navigating to a point, press NAV.
2. Highlight Stop Navigation, and press ENTER.
3. Highlight Resume Navigation, and press ENTER to resume
navigation.
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Waypoint Review Page
5. With the Go To button highlighted, press ENTER to begin
navigation.
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MARINE MODE > NAVIGATING TO A DESTINATION
To search for an item and route to it:
1. Press FIND to open the Find Menu.
2. Highlight a category, and press ENTER.
3. Press ENTER, and then press the ROCKER up or down to
enter letters contained in the item name. Press ENTER when
finished.
Man OverBoard (MOB)
Use the MOB function to simultaneously mark your current location
and create a direct route back to that location for quick response to
emergency situations.
To start the MOB function:
1. Press and hold the NAV/MOB key, or press the NAV/MOB
key twice.
Finding an item using the Containing field: The unit searches for items
containing the letter combination you enter and shows them in the list.
4. Highlight the item from the list, and press ENTER.
5. Press ENTER when the Go To button is highlighted.
For complete information about finding an item, see the “Finding an
Item” section.
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2. Press ENTER to confirm and begin navigating to the MOB
position.
When a MOB is activated, a MOB waypoint with an international
MOB symbol is created, and the unit begins actively navigating to
that point. Use any of the Navigation Pages to guide you back to the
MOB point. The MOB waypoint is stored in the waypoint list and
can be deleted like any other waypoint.
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MARINE MODE > FINDING AN ITEM
Finding an Item
Use the Find Menu to search for addresses, food & drink, fuel
services, lodging, banks/ATMs, cities, shopping, stored waypoints
and points of interest (POIs). To open the Find Menu, press the
FIND key.
The Find Menu is comprised of several default categories:
Waypoints, Cities, Exits, Transportation, Tide Stations, and Weather
Data. Additional categories appear depending on the optional
BlueChart, BlueChart g2 or MapSource data card in the unit.
Finding an Item From Another Location
You can use the Find Menu to center your search around an item
you just found. For example, you search for Restricted Areas and the
search shows an “Anchoring Prohibited” search result. If you press
FIND again, you will see “From Anchoring Prohibited” as the new
search from point. You can also use the Find feature to center your
search from any waypoint, route list entry, map item, or POI.
To find an item from another location on the map:
1. Open the Map Page. Use the ROCKER to pan the arrow
(pointer) to the location you want, and press FIND. The Find
Menu opens, showing “From Map Pointer”. The list of items
is sorted to show items nearest the selected location.
2. Highlight a category from the list, and press ENTER.
3. Highlight an item from the list, and press ENTER. The item’s
Information Page automatically opens, allowing you to
save the item as a waypoint, show the item on the map, or
automatically create a route to (Go To) the item.
Find Menu
Follow the directions on page 15 to navigate a new route using the
Find Menu.
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MARINE MODE > FINDING AN ITEM
To find an item from another location:
1. From any page, press FIND.
2. Highlight a category from the list, and press ENTER.
3. Press MENU to open the options menu.
To find an item near another item:
1. Press FIND. The Find Menu appears.
2. Highlight the item you want to find from.
3. Press FIND. The Find Menu opens again with items near the
previously selected item. Search for the item you want.
Viewing Recently Found Items
The Recently Found Page shows a list of the items you have
searched for or gone to recently.
To view a list of recently found items:
Find From Options Menu
4. Highlight Near Other, and press ENTER. If you are actively
following a route, you can also choose one of the other
options listed in the Find From list.
5. Select a reference location on the map, and press ENTER.
The list shows items nearest to the new map location.
1. Press FIND to open the Find Menu.
2. Highlight Recently Found, and press ENTER to open the list
of recently found items.
3. Press MENU to open the options menu.
4. Select Show Find History to view the list of items you have
searched for recently.
OR
Select Show Go To History to view the list of items for which
you have recently created a Go To (Go To History).
5. Highlight Remove Point, and press ENTER to delete the
selected recently found point.
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MARINE MODE > FINDING AN ITEM
Viewing the Information Page
Each item on the map and each item listed in the results list has an
Information Page.
To view details about an item:
1. Highlight a point on the map or in the search results list, and
press ENTER.
An Information Page appears with details about the item,
in a tabbed format. Depending on the item selected, and
if you are using optional BlueChart data cards, additional
information is available for viewing the item on the map,
viewing a tide chart, viewing the list of maps on your data
card, and viewing the next item in the search results list.
Map Feature Information Page
2. Press PAGE or QUIT to exit the Information Page. You
can also highlight one of the on-screen buttons and press
ENTER.
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Find Menu Options
To view additional Find Menu options, press FIND, and then press
MENU. The following options are available:
• Enable Auto Arrange—automatically arranges the Find
Menu. When selected, Disable Auto Arrange and Restore
Default options are available.
• Near Other—select a new location from which to compile
the Find items lists. Using the ROCKER, move the map
arrow to the location you want, and press ENTER.
• Map Information—shows information about the detailed
map data stored on the data card and allows you to select
which maps appear on the Map Page.
Additional selections are available on the options menu when you
are navigating:
• Near Next—compiles the Find items lists based on the next
turn in the route.
• Near Destination—compiles the Find items lists based on the
route destination.
• Near Current Route—compiles the Find items lists based on
the active route.
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MARINE MODE > CREATING AND USING ROUTES
Creating and Using Routes
The GPSMAP 376C allows you to create and store up to 50
reversible routes, with up to 300 points each.
Creating a New Route
To create a route using the map:
1. Highlight the Route tab on the Main Menu.
2. Press MENU to open the Route options menu.
3. Highlight New Route,and press ENTER.
Use the Route tab to create a route by selecting waypoints from the
Find Menu, or by selecting waypoints or map items from the Map
Page.
To create a route using the Find Menu:
1. Highlight the Route tab on the Main Menu.
4. Highlight Edit on Map,and press ENTER.
5. Highlight a location on the map, and press ENTER.
6. Repeat step 5 to define additional route points.
2.
3.
4.
5.
6.
Press MENU to open the Route options menu.
Highlight New Route, and press ENTER.
Press ENTER to find items to add to the route.
Highlight OK, and press ENTER to add a route point.
Repeat step 5 to define additional route points.
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NOTE: If you select an area of the map that is not a feature
or waypoint, a new waypoint is created for that location. Press
ENTER on the New Waypoint Page to save the location as a
waypoint and continue adding points to your route. You can edit
the properties of this waypoint as you can with any waypoint.
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MARINE MODE > CREATING AND USING ROUTES
Navigating a Saved Route
Use the Navigate Route option to select and navigate a saved route.
To navigate a saved route:
1. Press the NAV key.
2. Highlight Navigate Route, and press ENTER.
3. Highlight a route, and press ENTER.
Select a route
from the list
Editing a Route
After you create a route, use the Route Review Page to edit, change
the name, and review route points of a selected route.
To change the name of the route:
1. Highlight the Route tab on the Main Menu.
2. Highlight the name of the route, and press ENTER.
3. With the Route Review Page open, highlight the route name
field at the top of the page, and press ENTER.
Enter a new
Route name
here
Route Review Page
4. Use the ROCKER to enter the route name, and press
ENTER.
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MARINE MODE > CREATING AND USING ROUTES
To review individual route points:
1. Highlight the Route tab on the Main Menu.
2. From the Route List Page, highlight the name of the route,
and press ENTER.
3. From the Route Review Page, highlight a point, and press
ENTER.
4. On the Point Review Page, choose Next (highlight the next
point on the route list), Show Map (show the point on a map
window), or Save (save the point as a waypoint) and press
ENTER. If the route point is a user waypoint, you can edit
any of the waypoint properties on the Waypoint Page (see
the “Creating and Using Waypoints” section beginning on
page 24 for details).
To add points to the route:
1. Highlight the Route tab on the Main Menu.
2. Select a route, and press ENTER.
3. Highlight the spot in the route that you want to add the new
point. (The new point is added before the highlighted route
point.)
4. Press MENU.
5. Highlight Insert Waypoint, and press ENTER. The Find
Menu opens for you to search for and select the point you
want to add to the route.
When you return to the Route Review Page, the next point in the
route is automatically highlighted. You can review each point on the
route by pressing ENTER repeatedly.
Route Review Page
6. In the Point Review Page, highlight OK, and press ENTER to
add the new point to the route.
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MARINE MODE > CREATING AND USING ROUTES
To edit the route on the map:
1. Highlight the Route tab on the Main Menu.
2. Select a route, and press ENTER. Press MENU to open the
Route Review Page options menu.
3. Highlight Edit on Map, and press ENTER.
4. Select a location on the route (the route turns red when the
arrow is over the route), and press ENTER.
5. Use the ROCKER to drag the route to the new point location,
and press ENTER.
To plan your route:
1. Open the Route Review Page options menu.
2. Highlight Plan Route, and press ENTER.
Entering Speed and Fuel Flow for trip planning
3. Enter the data for Speed and Fuel Flow. You can also enter
the date and time of your departure. Press QUIT to return to
the Route Review Page.
Editing the route on the map
6. Repeat steps 4 through 5 until all points are added to the
route. Press QUIT when finished.
You can enter information about your trip so the GPSMAP 376C can
estimate information about your trip.
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NOTE: Fuel flow rates are measured in “units per hour.” System
setting changes for units of measure (statute, nautical or metric)
do not affect the fuel flow measure. You should enter fuel
flow rates based on information for your vehicle (such as the
operator’s manual or performance specifications), and make note
of the units of measure (gallons or liters).
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MARINE MODE > CREATING AND USING WAYPOINTS
Manually Transitioning to the Next Waypoint
Creating and Using Waypoints
From the Route tab option menu, highlight Set Up Routes, and
press ENTER to set the route leg transition (or waypoint transition).
Select Distance to enter a radius so that when you are within the
entered distance, the GPSMAP 376C leads you to the next point on
your route.
Waypoints are locations or landmarks you record and store in your
GPS. They are locations you might want to return to later, such as
checkpoints on a route or significant ground features. You can add
waypoints to routes and even create a Go To directly to the selected
waypoint.
When you select Manual, you can transition to the next waypoint
anytime while navigating a route. While you are navigating
the route, open the Active Route Page, and press MENU.
Highlight Next Route Waypoint, and press ENTER to have the
GPSMAP 376C start routing you to the next point in your route.
The GPSMAP 376C stores up to 3,000 alphanumeric waypoints with
a user-defined icon, comment, elevation, depth, and temperature
available for each waypoint. Waypoints can be created using three
basic methods:
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• ENTER/MARK—allows you to quickly mark your present
location.
• Graphically—allows you to define a new waypoint location
from the map display using the ROCKER.
• Text Entry—allows you to enter a new waypoint’s location
coordinates manually.
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MARINE MODE > CREATING AND USING WAYPOINTS
Marking Your Present Location
Use the ENTER/MARK key to capture your present location to
create a new waypoint. You must have a valid position (2D or 3D)
fix to mark your present location.
To mark your present location:
1. Press and hold the ENTER/MARK key until the New
Waypoint Page opens, then release it. A default four-digit
name and symbol are assigned to the new waypoint.
New Waypoint Page
2. To accept the waypoint with the default information, highlight
OK, and press ENTER.
To change any information on the New Waypoint Page,
highlight the appropriate field, and press ENTER. After
entering and confirming your changes, highlight OK, and
press ENTER.
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Creating Waypoints Using the Map
You can quickly create a waypoint using the Map Page. When
you pan the map and move the arrow over a map item, you see a
highlighted description of that item. The GPSMAP 376C uses the
map item text shown on the map as the default name and symbol for
the new waypoint.
To create a new waypoint using the Map Page:
1. Use the ROCKER to move the arrow to the map location or
map feature you want.
2. Press and quickly release ENTER/MARK to capture the
arrow location. Pressing and holding ENTER/MARK marks
your current location, not the arrow’s location.
If you have highlighted a map feature, an Information Page
opens after you press ENTER. Highlight Save, and press
ENTER to save the item as a waypoint. The New Map
Waypoint Page opens.
3. To accept the waypoint with the default information, highlight
OK, and press ENTER.
To change any information on the New Map Waypoint Page,
highlight the appropriate field, and press ENTER. After
entering your changes, highlight OK, and press ENTER.
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MARINE MODE > CREATING AND USING WAYPOINTS
Creating a Waypoint by Entering Coordinates
You can manually enter location coordinates to create a waypoint.
This method is useful for creating a waypoint at a specific latitude/
longitude position from a chart.
To create a new waypoint by entering location
coordinates:
1. Press ENTER/MARK to create a waypoint. The new
waypoint is created with the next available waypoint number
and the receiver’s last known location as the default location.
2. On the New Map Waypoint Page, highlight the Location
field, and press ENTER.
3.
To change any of the other information on the New Map
Waypoint Page, highlight the appropriate field, and press
ENTER. After entering your changes highlight OK, and press
ENTER.
Reviewing a Waypoint
After you create and store a waypoint, you can modify, review,
rename, move, or delete it at any time using the Waypoint Review
and Waypoint Edit Pages
To access the Waypoint Review Page:
Highlight a waypoint on the Map Page, and then press
ENTER to open the Waypoint Review Page. If the waypoint
is located on a map feature or MapSource or BlueChart
feature, the Waypoint Review Page might include additional
tabs containing information about other features at that
location.
Use the ROCKER to enter location coordinates, and press
ENTER when finished
Waypoint Review Page
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MARINE MODE > CREATING AND USING WAYPOINTS
To access the Waypoint Edit Page:
1. Highlight the Points tab on the Main Menu, and then select a
waypoint from the list.
Points Tab
2. Press ENTER to open the Waypoint Edit Page.
To add a waypoint to the end of the route:
1. Open the Waypoint Edit Page, and press MENU.
Waypoint Options Menu
2. Select Append To Route. The Select Route window opens.
NOTE: If the waypoint is located on a map feature or
MapSource or BlueChart feature, the Waypoint Edit Page does
not show the details of the other map features.
Adding a Waypoint to a Route
Use the Append to Route option to add the selected waypoint
to the end of a route. This option is available only when you are
not navigating. When you are navigating to a destination, Add to
Current Route opens. The selected waypoint is added to the current
route before the route destination.
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3. Highlight a route or select New Route, and press ENTER.
4. Highlight OK, and press ENTER to save the waypoint.
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MARINE MODE > CREATING AND USING WAYPOINTS
Averaging the Waypoint’s Location
Average Location makes the unit take several sample location
measurements for the waypoint and recalculates for a more accurate
location reading.
NOTE: You must have a GPS satellite fix before you can
average a waypoint’s location.
To calculate the average location:
1. Open the Waypoint Page, and press MENU.
2. Select Average Location, and press ENTER. The Average
Location window opens. The fields change as the unit
calculates the average location of the waypoint.
Average Location Page
3. Press ENTER to save the location.
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Projecting a Waypoint
You can create a new waypoint by projecting the distance and
bearing from a specific location to a new location.
To create a new waypoint by projecting its location:
1. Create a waypoint. The new waypoint uses the next available
waypoint number and the receiver’s last known location as
the default location.
2. Highlight the Points tab on the Main Menu, and then select a
waypoint. Press ENTER.
3. Press MENU to open the New Waypoint Page options menu.
4. Highlight Project Location, and press ENTER.
Project Location Menu
5. To change the location from which you are projecting the new
waypoint, highlight the From field, and press ENTER.
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MARINE MODE > CREATING AND USING WAYPOINTS
6. Select the point from which you will project your new
waypoint. For more information see the “Finding an Item”
section on page 17.
7. To adjust the distance that the new waypoint will be projected
beyond the original waypoint, highlight the Distance field,
and press ENTER. Enter the projection distance, and press
ENTER.
To adjust the bearing that the new waypoint is projected from
the original waypoint, highlight the Bearing field, and press
ENTER. Enter the bearing, and press ENTER.
8. When you have adjusted all elements of the projected
location, highlight Save, and press ENTER.
9. Make any other changes to the new waypoint data (such as
the name or symbol); highlight OK, and press ENTER.
Editing a Waypoint
You can edit waypoints using the Points tab on the Main Menu. The
User sub tab, on the Points tab, shows a master list of all waypoints
stored in memory. From the User list, you can review, edit, rename,
or delete individual waypoints or delete all user waypoints.
The number of stored and available waypoints is shown at the
bottom of the User sub tab. Stored waypoints are arranged in
alphanumeric order.
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User Points Tab
To navigate (Go To) a waypoint from the Points tab:
1. Select the Points tab on the Main Menu, and then highlight
the User sub tab.
2. Highlight the waypoint you want in the list.
3. Press NAV to open the Navigate Menu. Highlight Go To
<Point Name>, and press ENTER.
To edit a waypoint:
1. Open the Waypoint Review or Waypoint Edit Page.
2. Highlight the waypoint name, symbol, or field you want to
change, and press ENTER.
3. Use the ROCKER to select a symbol or enter data, and
press ENTER when finished.
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MARINE MODE > CREATING AND USING WAYPOINTS
To create a category:
Symbol field
Name field
1. From any of the waypoint pages or the Points tab, press
MENU to open the options menu.
2. Select Edit Categories, and press ENTER.
3. Highlight Add, and press ENTER.
Waypoint Page
To edit the next waypoint in the list:
1. Highlight Next and press ENTER. The Waypoint list appears
with the next waypoint highlighted.
2. Press ENTER to edit that waypoint.
Organizing Waypoints into Categories
You can organize your waypoints into categories, to help manage
your waypoints. For example, you can create a Vacation category
that stores all of the waypoints you want to use for your vacation.
When the vacation is over, you can delete all the waypoints in that
category. You can create up to 15 categories.
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Entering a new category
4. Use the ROCKER to enter a name for the category.
5. Highlight Save, and press ENTER.
To assign a category to a waypoint:
1. Open the Waypoint Edit Page. (You can also change the
category on the New Waypoint Page.)
2. Select the Category field, and press ENTER.
3. Select the category to which you want to assign the
waypoint, and press ENTER.
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MARINE MODE > CREATING AND USING WAYPOINTS
Select the
category to
which you want
to assign this
waypoint.
Waypoint Page
To delete a category:
1. With the Waypoint Categories window open, highlight the
category you want to delete, and press MENU.
Deleting Waypoints
You can delete waypoints from the waypoint list on the Points tab
or from the Waypoint Page. To delete a waypoint from the Waypoint
Page, use the ROCKER to highlight the on-screen Delete button,
and press ENTER.
NOTE: When a waypoint is deleted from the list, it cannot
be recovered from the unit. Backup important waypoints to a
computer using the optional PC cable and interface software,
such as MapSource, or write them down by hand.
To delete a waypoint from the User Points tab:
1. From the Points tab, highlight the waypoint you want to
delete.
2. Press MENU, highlight Delete Waypoint, and press ENTER.
A confirmation message appears.
Waypoint Categories Options Menu
2. Select Delete Category, and press ENTER.
3. Press ENTER again to finish deleting the category.
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3. Press ENTER to confirm.
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MARINE MODE > CREATING AND USING WAYPOINTS
To delete waypoints by symbol or category:
Proximity Points
To delete waypoints by distance:
If a proximity alarm circle overlaps an existing alarm circle, a
“Proximity Overlaps Another Proximity Waypoint” message
appears. Because the unit only alerts for one of the overlap points,
use caution when navigating in these areas. If you enter an alarm
circle overlap, you are only alerted to the closest proximity
waypoint.
1. On the User sub tab, highlight a waypoint to delete, and
press MENU.
2. Highlight Delete by Symbol or Delete by Category, and
press ENTER.
3. When deleting by symbol, highlight the symbol of the
waypoint you want to delete, and press ENTER. When
deleting by category, select the category you want to delete
from the list, and press ENTER.
4. Highlight OK, and press ENTER to confirm. Choose Cancel
or press QUIT to exit without deleting the waypoint.
1. On the User sub tab, highlight a waypoint to delete, and
press MENU.
2. Highlight Delete By Distance, and press ENTER.
3. Select Less Than or More Than, and enter the distance
using the ROCKER.
4. You can select a waypoint or point of interest as the From
location. Highlight the From field and press ENTER. From
the Find Menu, select a location, and press ENTER. When
OK is highlighted, press ENTER.
5. Highlight Delete and press ENTER to delete all waypoints
within the set location. Choose Cancel or press QUIT to exit
without deleting the waypoints.
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Use the Proximity Points tab to define an alarm circle around a
stored waypoint location. The alarm circle can help you avoid reefs,
rocks, or restricted waters. Up to 100 waypoints can be listed with
a maximum alarm radius of 99.99 nautical miles, statute miles, or
kilometers.
To turn proximity alarms on or off:
1. Highlight the Points tab on the Main Menu, and then select
the Proximity sub tab.
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MARINE MODE > CREATING AND USING WAYPOINTS
2. Highlight the field below Proximity Alarm, and press
ENTER.
3. Select the On or Off setting, and press ENTER.
To add a proximity waypoint:
1. From the Proximity Points tab, use the ROCKER to highlight
an empty line on the Proximity List, and press ENTER. The
Find Menu opens.
2. Select a waypoint or point of interest from the Find Menu.
3. With OK highlighted, press ENTER to select the point. The
distance field is now highlighted. Press ENTER to begin
entering the proximity radius.
4. Use the ROCKER to enter a distance value (up to 99.99
units), and press ENTER.
To clear one or all proximity waypoints from the list:
1. Highlight the Points tab on the Main Menu, and then select
the Proximity sub tab.
2. Highlight the proximity waypoint to clear, and press MENU.
Proximity Points Tab Options Menu
3. To clear a single alarm, highlight Remove Point, and press
ENTER. To clear all proximity waypoints, select Remove All,
and press ENTER.
4. Highlight OK, and press ENTER to confirm.
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MARINE MODE > MANAGING YOUR TRACKS
Managing Your Tracks
The GPSMAP 376C draws an electronic breadcrumb trail or track
log on the Map Page as you travel. The track log contains points
along its path, including time, and location for each point.
The track log starts recording as soon as the GPSMAP 376C gets
a location fix. For the best results, clear the track log before you
start traveling because when the track log is full, new track points
overwrite the oldest track points.
The percentage of memory used by the current track log appears at
the top of the Active tab. After the track log is cleared, it shows zero
percent. When the track log reaches 100%, the most recent track
points start to overwrite the oldest track points (if Wrap is selected
for Record Mode). To avoid losing track points, save the track log
when it approaches the 99% mark.
Setting Up and Saving Your Tracks
You must save the track log before you can use the Navigate Track
feature. The Save feature allows you to store up to 15 track logs
from certain times and dates.
To access the Track tab:
1. Press Menu twice to open the Main Menu.
2. Highlight the Track tab.
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Active Track Tab
Record Mode—Wrap records over the oldest tracks when the track
log reaches 100%. Fill records a track log until the track log is full
(100%). When Off is selected, the unit does not record tracks.
Interval—Distance records track points after a specified distance is
traveled. Time creates track points after a specified time has elapsed.
Resolution records track points based on the resolution. The higher
the resolution entered, the more points the unit creates to make the
track.
Color—select a color for the track when it appears on the map.
Value—records a track according to the Interval and Value. Enter a
specific distance, time, or resolution.
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MARINE MODE > MANAGING YOUR TRACKS
To clear the track log:
1. Highlight the Track tab on the Main Menu, and then highlight
the Active sub tab.
2. Highlight the Clear button, and press ENTER. A confirmation
message appears.
To save a portion of the track log:
1. Highlight the Track tab on the Main Menu, and then highlight
the Active sub tab.
2. Select Save, and press ENTER.
3. Highlight No and press ENTER when a message appears.
4. Select a beginning point, and press ENTER.
Clearing the track log
3. Highlight OK, and press ENTER.
To save the entire track log:
1. Highlight the Track tab on the Main Menu, and then highlight
the Active sub tab.
2. Select Save, and press ENTER. A message appears asking
if you want to save the entire track.
3. Highlight Yes, and press ENTER.
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5. Select an ending point, and press ENTER.
6. Highlight OK, and press ENTER to save the track.
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MARINE MODE > MANAGING YOUR TRACKS
Saved Tracks
The Saved sub tab lists all of the saved tracks in your unit. Press
MENU to open the Saved tab options menu.
To edit a track:
1. Highlight the Track tab on the Main Menu, and then select
the Saved sub tab.
2. Select a track to edit, and press ENTER.
Saved Tab
Review on Map—shows the highlighted track on the Map Page.
TracBack—navigates the track. You can either navigate the track as
it is saved, or you can navigate the track in reverse.
Delete Track—erases the highlighted track from the unit’s memory.
Delete All—erases all tracks from the unit’s memory.
3. Highlight the Name field, and press ENTER. Use the
ROCKER to change the name, and press ENTER.
4. Select a different display color to show the track on the map.
5. Highlight the box next to Show on Map, and press ENTER to
show the track on the map.
6. To begin a TracBack, highlight TracBack, and press ENTER.
7. To view the track on the map, highlight Map, and press
ENTER. Press QUIT to return to the Track tab.
8. Highlight OK, and press ENTER to save your changes.
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MARINE MODE > MANAGING YOUR TRACKS
Navigating a Saved Track
You can save your track log to use later as a TracBack, which
reduces your track log into a route with up to 300 turns. When
initiated, a TracBack route leads you back to the oldest stored track
log point. It is a good idea to clear the existing track log before you
start your current trip. Also, you must save an active track log before
you can navigate it as a TracBack.
To start a TracBack using the NAV key:
1. Press NAV, highlight Navigate Track, and press ENTER.
2. Highlight the track you want to navigate, and press ENTER.
Selecting a Saved Track
3. Select the point you want to navigate (TracBack) to, and
press ENTER.
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TracBack Tips
When a TracBack is initiated, the GPSMAP 376C divides the track
into segments called legs. Up to 300 temporary turns are created to
mark the most significant features of the track in order to duplicate
your exact path as closely as possible. To get the most out of the
TracBack feature, remember these tips:
• Always clear the track log at the point that which you want to
go back (such as a dock or campsite).
• The Record Mode option on the Active Track tab must be set
to Fill or Wrap.
• If the track log Interval option on the Active tab is set to the
Time option, the route might not navigate your exact path
(keep the interval set to Resolution for best performance).
• If the receiver is turned off or satellite coverage is lost during
your trip, TracBack draws a straight line between any point
where coverage was lost and where it resumed.
• If the changes in distance and direction of your track are too
complex, 300 waypoints might not mark your path accurately.
The receiver then uses the most significant points of your
track so there will be fewer changes in direction.
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MARINE MODE PAGES> MAP PAGE
MARINE MODE PAGES
Five pages are available in Marine Mode—Map, Compass,
Highway, Active Route, and Position Data. An optional XM Audio
Page can be enabled. And a Sonar Page is available when a GSD 20
or GSD 21 Sounder Module is connected.
Map Page
When you turn on the GPSMAP 376C, the Map Page appears after
the unit acquires a satellite signal. The position marker shows
your current location on the map.
The Map Page shows map information (digital cartography) that
includes navaids, lakes, rivers, coastlines, cities, and highways. Use
the dedicated zoom keys (IN and OUT) to adjust the Map Page
scale.
Two map operating modes, position mode and pan mode, determine
what cartography is shown on the map display. Position mode
pans the map to keep your present location in the display area.
The position marker shows your travel on the Map Page. The
GPSMAP 376C always turns on in position mode, with the last
known location centered on the map. When you press the ROCKER,
the GPSMAP 376C enters pan mode, which moves the map to keep
the white arrow (map pointer) within the display area.
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The system has a built-in worldwide database, with more detailed
coverage available through the use of the BlueChart or MapSource
data. The GPSMAP 376C shows cartography as long as chart
information is available for the map zoom range you selected. In
Marine Mode, by default, four user-selectable data fields appear on
the right side of the screen that can be configured to show any one of
the possible data options. You can also add additional data fields to
the page or select a full screen map without data fields.
Data fields
Current
location
Map Page
Map zoom
range
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MARINE MODE PAGES> MAP PAGE
Changing the Page Layout and Data Fields
You can adjust how the following pages appear: Map, Compass,
Highway, Position Data, Trip Computer, and optional Sonar Pages.
You can also adjust the data fields on each page.
To change the map page layout:
1. Press MENU to open the options menu.
2. Highlight Set Up Page Layout, and press ENTER.
To change a data field display:
1.
2.
3.
4.
Press MENU to open the options menu.
Highlight Change Data Fields, and press ENTER.
Highlight the data field to change, and press ENTER.
Highlight the type of data you want to show, and press
ENTER.
5. Press QUIT to exit.
3. Select a page layout option, and press ENTER.
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MARINE MODE PAGES> MAP PAGE
Setting Up the Map Page
Use the Set Up Map option to adjust how items appear on the Map
Page.
To change a map setup option:
1. On the Map Page, press MENU to open the options menu.
2. Highlight Set Up Map, and press ENTER.
Viewing Additional Map Data
Use the Map Information Page to view the data loaded on your
GPSMAP 376C unit and data card.
To review/change map information:
1. On the Map Page, press MENU.
2. Highlight Map Information, and press ENTER. The first
page shows the map families stored on the data card and
unit, and whether they are shown on the Map Page.
Map Family
highlighted.
Press ENTER
to view the
individual maps
in the family.
Setting up the Map Page
3. Press left or right on the ROCKER to highlight a tab; press
up or down on the ROCKER to highlight the field you want to
change, and press ENTER.
4. Highlight a setting, and press ENTER.
5. Press PAGE or QUIT to exit.
3. To change the setting for a map family, highlight the box next
to the map family name and press ENTER to select (check
mark) or deselect (no check mark) the Show setting.
NOTE: The outline of a check mark will appear if one or more
maps have been deselected within that map family.
4. To view the list of maps within a map family, highlight the
name of the map family, and press ENTER.
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MARINE MODE PAGES> MAP PAGE
5. When using a map loaded to a data card, you can view
detailed information about an individual map, highlight the
Map Name, and press ENTER. Highlight OK, and press
ENTER to exit the Map Information Page.
Map Orientation
There are three map orientation options: North Up orients the map
like a paper map. Track Up orients the map in the direction of travel.
Course Up orients the map so the direction of navigation is always
up. When using Track Up or Course Up, the North arrow indicates
the orientation. To change the map orientation, press MENU to open
the Map Page. Press MENU again. Select Set Up Map, and press
ENTER. See page 40 for information.
Zooming In and Out of the Map
6. To select/deselect individual maps (data card maps only) to
show on the Map Page, highlight the box next to the map you
want, and press ENTER to check/uncheck the Show box.
OR
Press MENU, select one of the options (Show All, Hide All,
or Show Defaults), and press ENTER.
7. Press QUIT to exit the Map Information page.
The map display has 28 available map zoom ranges ranging from
20 ft to 800 nm (20 ft to 800 mi or 5 m to 1200 km). The map zoom
range is controlled by the IN and OUT keys, with the current scale
shown at the bottom right of the data window.
NOTE: The scale value represents the distance from one end of
the scale bar (
) to the other.
To select a map scale (zoom in and out):
Press the OUT key to zoom out, press the IN key to zoom in.
The GPSMAP 376C has a built-in worldwide database, with more
detailed coverage available through the use of the BlueChart,
BlueChart g2 or MapSource data. The GPSMAP 376C shows
cartography as long as chart information is available for the zoom
scale you selected.
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MARINE MODE PAGES> MAP PAGE
Map coverage conforms to the following conditions:
• Cartography is shown when the selected map zoom range is
covered by either the internal basemap or other MapSource
data loaded onto a data card.
• When the selected map zoom range is covered by both
the internal database and data card map information, the
cartography with the best resolution appears.
• When the selected zoom scale exceeds the resolution of the
data in use, “overzoom” appears below the map scale.
Panning the Map
Use the panning arrow to pan the map to view other map areas.
As you pan past the edge of the current map display, the screen
moves to provide continuous map coverage. The position icon
stays in your present location and might not be visible on the screen
when you pan the map.
To pan the map:
Press up, down, right, or left on the ROCKER. The panning
arrow moves the map so you can view different parts of the
map.
No Additional Data is Available
• When external data (such as MapSource data) is used, “map
card” appears below the map scale.
Using External Detailed Maps
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Map feature
highlighted
As you move the arrow, the distance and bearing from your present
location to the arrow appears in the data window, along with the
arrow’s position coordinates. When you zoom in pan mode, the
arrow stays centered on the screen. When the arrow is stationary,
fixed coordinates appear in the position field, and the distance and
bearing from your present location update as you move.
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MARINE MODE PAGES> MAP PAGE
To re-center your position on the screen:
Press QUIT. The map automatically moves to show your
present location, and the unit returns to position mode.
You can also use the arrow to select on-screen map items, which
allows you to review a selected item directly from the map.
3. Use the ROCKER to highlight the extra tabs and view the
information.
4. Select an on-screen button, and press ENTER. Press QUIT
to exit the Information Page.
To view details about an on-screen point:
1. Use the ROCKER to move the arrow to a waypoint or map
item. If several items are grouped closely together, zoom in
closer for a better view.
When a waypoint or map item is selected, it is highlighted onscreen with the name and location shown at the top of the
screen, along with the distance and bearing from your current
location.
2. Press ENTER to view more information about the point. The
information and on-screen buttons shown vary depending
on the type of item selected. In some cases, additional
information tabs appear at the top of the Information Page or
Waypoint Page.
Map Feature Information Page
Clearing Unwanted Details from the Map
You can remove items from the Map Page (declutter the screen) to
remove unwanted items.
To declutter the Map Page:
1. On the Map Page, press MENU to open the options menu.
2. Highlight Declutter, and press ENTER.
3. Press ENTER again to restore the detail to the map.
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MARINE MODE PAGES> MAP PAGE
Measuring Distance
You can measure the distance and bearing between two map items.
To measure the bearing/distance between two points:
1. On the Map Page, press MENU to open the options menu.
2. Highlight Measure Distance, and press ENTER. An onscreen arrow appears on the map at your present location
with ENT REF below it.
4. Move the arrow to the point of which you want to measure.
The bearing and distance from the reference point and arrow
coordinates appear in the data window at the top of the
screen.
End point of
measurement,
labeled ENT
REF
Push pin
indicating the
beginning
point of the
measurement
Measure Distance
3. Move the arrow to the reference point (the starting point that
you want to measure from) and press ENTER. A push pin
icon marks the starting point.
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MARINE MODE PAGES> COMPASS PAGE
Compass Page
During active navigation, the Compass Page guides you to your
destination with a graphic compass and a bearing pointer. When
the pointer is pointing straight up, you are heading directly to your
destination.
Rotating
compass ring
Course to steer
indicator
Compass arrow
Data fields
Compass Page in Marine Mode
The middle of the page features a rotating compass ring that shows
your course over ground (track) while you are moving. Your present
course over ground is indicated at the top of the compass ring. The
direction of the destination (bearing) relative to the course over
ground is indicated by an arrow in the middle of the compass ring
and a course to steer “bug” on the outside of the compass ring. The
course to steer represents the direction to steer to get back to the
course line.
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If the arrow points up, you are going directly to the waypoint. If the
arrow points any direction other than up, turn toward the arrow until
it points up, and then continue in that direction.
NOTE: You must be moving for the compass to accurately
update and show your heading.
Turning On the Compass Page
The Compass Page is on by default in Marine Mode but off by
default in Automotive Mode.
To show the Compass Page in Automotive Mode:
1. Highlight the Display tab on the Main Menu.
2. Highlight the Compass Page field, and press ENTER.
3. Select On, and press ENTER.
Turning on the Compass Page
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MARINE MODE PAGES> COMPASS PAGE
Compass Page Options
Use the options menu on the Compass Page to customize the
Compass Page. For definitions of data field options, see to page 131.
Press MENU to open the Compass Page options menu.
Using the Marine Timer
The Marine Timer, specifically designed for sail boat racing, allows
you to easily count up or down by specified time increments. As
is common in sail boat racing, there is often a 5-minute warning
countdown, followed by a 4 minute preparation countdown, and
finally a one-minute final countdown. Then during the race, mariners
might want to count up to keep track of their time.
You can use your GPSMAP 376C to perform each of these different
countdowns.
To open the Marine Timer:
Set Up Page Layout—select the page layout.
Show Course Pointer/Show Compass—toggles between showing
the Course Pointer, which shows how far off you are from your
course and how to get back on course, or shows the compass arrow.
The Course Pointer is also referred to as a CDI or Course Deviation
Indictor.
1. Press MENU on the Compass Page.
2. Highlight Set Up Page Layout, and press ENTER.
3. Highlight 2 Columns With Timer, and press ENTER. The
Marine Timer appears in the lower-right corner.
Show (Hide) Bug Indicator—shows the course to steer bug
indicator (the purple tick mark on the compass ring).
Change Data Fields—changes on-screen data fields.
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MARINE MODE PAGES> COMPASS PAGE
To use the Marine Timer:
1. Press the ROCKER up or down to select the time you want
to count. Five (5) minutes is the default.
2. Press ENTER to start the timer. Use the ROCKER during the
timing to quickly select a different length of time.
3. Press ENTER to stop timing.
Marine Timer on the Compass Page
To set the Marine Timer:
1. Highlight the Setup tab on the Main Menu, and then select
the Timers sub tab.
2. Highlight Stop next to Marine to change the timer’s behavior.
3. Highlight the time field, press ENTER, and then use the
ROCKER to enter a new time.
As discussed previously, the timer is set to count down five minutes.
If you want to change the length of time and the behavior of the
timer, highlight the Setup tab on the Main Menu, and select the
Timers Setup sub tab.
NOTE: You can set the timer countdown for up to 60 minutes.
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MARINE MODE PAGES> HIGHWAY PAGE
Highway Page
To hide/show the Highway Page:
The Highway Page is available in both Marine Mode and
Automotive Mode.
1. Highlight the Display tab on the Main Menu.
2. Highlight the Highway Page field, and press ENTER.
3. Select Off to hide or On to show, and press ENTER.
Using the Highway Page
To stay on course, steer toward the violet bar (or arrows) until
it lines up with the red bar in the middle. The bottom section of
the screen provides visual guidance to the waypoint on a graphic
highway display. The line down the center of the highway represents
your desired track line.
Highway Page
When you are navigating, the Highway Page provides digital and
graphic steering guidance to the destination. The right side of the
Highway Page features user-selectable data fields showing useful
navigation information. A compass ribbon appears at the top of the
page to show your current heading, represented by the violet bar.
The red vertical bar represents the bearing to your course. To stay
on course, steer toward the red vertical indicator (or arrows) until it
lines up with the violet bar in the middle. The bottom of the screen
provides visual guidance to the waypoint on a graphic highway
display. The line down the center of the highway represents the track
line you want.
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As you head toward your destination, the highway perspective
moves to indicate your progress to the waypoint and which direction
you should steer to stay on course. If you are navigating a route, the
Highway Page shows each route waypoint in sequence connected
by a black “road” with a white line down the middle, which is your
desired track line. Nearby waypoints not in the active route can also
be shown. You can zoom in or out to show a larger or smaller view
of the highway.
To change the highway perspective scale:
Press IN to zoom in; press OUT to zoom out.
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MARINE MODE PAGES> HIGHWAY PAGE
Highway Page Options
Use the Highway Page options menu to define the data fields and
select which waypoints and tracks appear on the screen. The data
fields, located along the right side of the page, provide various types
of useful data.
To show and select the Highway Page Options:
1. Press PAGE repeatedly until the Highway Page appears.
2. Press MENU.
3. Highlight an option, and press ENTER.
The following options are available from the Highway Page options
menu:
Set Up Page Layout—select the page layout.
Change Data Fields—change on-screen data fields.
Set Up Highway—shows an options menu with two sub tabs:
Line and Waypoint. Each tab has on/off settings for options
including enabling the line for the Active Leg and Track Log.
Set Up Highway
Highway Page Options Menu
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MARINE MODE PAGES> ACTIVE ROUTE PAGE
Active Route Page
When you are navigating a route using your GPSMAP 376C, the
Active Route Page shows each point (waypoint or map item) of the
active route with the point name, course, distance, and several other
fields of information (to show the other fields use the ROCKER
to scroll right or left using the arrows shown on the screen). The
current destination point, the active point, is marked with an arrow
icon. As you navigate a route, the list automatically updates to
indicate the next active point. The Active Route and Route Review
Pages share many of the same features and options.
Active Route Page Options
Press MENU to open the Active Route Page options menu.
Deactivate—stop route navigation.
Edit on Map— edit the route on the map. See page 23.
Add Waypoint—insert a point before the highlighted waypoint or
add a point to the end of the route.
Remove Waypoint—delete a selected waypoint from a route.
Active Route Page
Invert—reverse the order of a route.
Plan Route—enter information about your route to more accurately
provide you with arrival times.
Change Data Fields—customize the data fields shown on the
Active Route Page.
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MARINE MODE PAGES> POSITION DATA PAGE
Position Data Page
The Position Data Page shows important navigation data while
navigating a route in Marine Mode. By default, the Position Data
Page shows a compass ribbon, your current latitude and longitude,
date and time, your location in relation to a prominent nearby
landmark such as a waypoint or city, and eight user-selectable data
fields. The compass ribbon appears at the top of the page to show
your current heading with a red, vertical bar. To stay on course, steer
toward the violet bar (or arrows) until it is aligned with the red bar.
Position Data Page Options
Press MENU to open the Position Data Page options menu.
Change Nearest Type—specify the type of item used as the nearest
item (shown in the lower-left data field). The choices vary based on
the current usage mode.
Reset Trip—clear trip information, except the maximum speed and
the odometer.
Reset Max Speed—clear the maximum speed.
Reset Odometer—clear the running total of the distance traveled
since the odometer was last reset.
Reset All—clear all trip information including the maximum speed
and odometer.
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MARINE MODE PAGES> XM AUDIO PAGE
XM Audio Page
Use the XM Audio Page to view and select XM Radio channels.
Add or remove channels within the Favorites category, and turn
audio on or off.
NOTE: You MUST have a GXM 30 antenna connected to your
GPSMAP 376C and a subscription to XM Radio to use XM
Radio features. Additionally, you must use an optional external
speaker with a 12/24-Volt adapter, third-party FM modulator,
speakers, or headphones plugged to hear the audio.
Category
name
Channels
Song title
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Channel
name
The XM Audio Page is divided into three panes. The first pane
contains a list of XM Radio categories into which XM Radio
channels are grouped (classical, decades, traffic, and so on). For
a complete list of available categories and channels, visit the XM
Radio web site at www.xmradio.com. Select All Channels to view
a list of all channels in numerical order. You can also view a list of
your favorite channels.
The second pane shows a list of channels in the selected category.
Each channel has a description and the artist currently playing. You
can adjust this setting to show the song title instead of the artist.
Artist name
Channel
number
The XM Audio page is available in both Marine Mode and
Automotive Mode. The XM tab appears on the Main Menu, even if
the XM Audio Page is turned off.
XM Audio Page
Signal
strength
indicator
The third pane shows the song and artist or program name, the
channel number and name, and the strength of the XM Radio signal.
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MARINE MODE PAGES> XM AUDIO PAGE
Turning on the XM Audio Page
The XM Audio Page is off by default.
To show the XM Audio Page:
XM Audio Page Options
With the XM Audio Page open, press MENU to open the options
menu.
1. Highlight the Display tab from the Main Menu.
2. Highlight the XM Audio Page field, and press ENTER.
3. Select On, and press ENTER.
XM Audio Page Options Menu
The following options are available on the XM Audio Page options
menu:
XM Audio Page field on the Display tab
To select an XM Radio channel:
1. Press up or down on the ROCKER to scroll through the list of
channels.
2. Highlight the channel you want, and then press ENTER.
A triangle ( ) appears to the left of the channel currently
playing.
Add to Favorites—allows you to add channels to the Favorites
category. See page 54 for more information.
Scan—enable you to scan all channels, scan by category, or scan
favorites. Each channel plays for five seconds before advancing to
the next channel in the list. See page 55 for more information.
Display Artist (Display Song) In List—enable you to select
whether to show the artist or the song title in the channel list.
Mute (Enable) Audio Output—enable you to turn audio output on
or off.
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MARINE MODE PAGES> XM AUDIO PAGE
Using Favorites
You can create a customized list of up to 30 of your favorite XM
Radio channels.
To add a channel to Favorites:
1. Highlight the Category list, and press ENTER.
2. Select a category, and press ENTER, or use the IN and OUT
keys.
3. Select a channel.
4. Press MENU.
5. Highlight Add To Favorites, and press ENTER. Repeat
steps 1 through 4 to add another channel.
3. Highlight the channel you want to select from your list of
favorites, and press ENTER. A triangle appears to the left of
the newly selected channel.
Selected
channel
Favorites List
To delete a channel from Favorites:
Adding a channel to Favorites
To view and select Favorites:
1. In the Favorites category, highlight the channel you want to
delete, and press MENU.
2. Highlight Delete Favorite to delete the selected channel from
your favorites list, or highlight Delete All Favorites to delete
all channels from your Favorites list.
3. Press ENTER. A confirmation message appears.
4. Highlight OK, and press ENTER again to confirm.
1. Highlight the Category list, and press ENTER.
2. Select the Favorites category, and press ENTER.
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MARINE MODE PAGES> XM AUDIO PAGE
Scanning XM Radio Channels
From the XM Audio Page, you can scan all channels, scan channels
in a specific category, or scan channels in your Favorites.
To scan XM Radio channels:
1. On the XM Audio Page, press MENU.
2. Select Scan on the options menu, and press ENTER.
3. Select All Channels to scan all channels.
OR
Select Category to scan only channels in the selected
category.
OR
Select Favorites to scan only channels in your Favorites list.
4. Press ENTER. Each channel is played for five seconds and
then advances to the next channel.
5. Press any key to stop scanning and select the current
channel.
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Turning Audio On or Off
To turn audio on or off:
1. On the Audio sub tab, press MENU.
2. Highlight Mute Audio Output on the options menu to turn
the audio off. A music note with a red slash appears in the
song pane. Highlight Enable Audio Output to resume audio
output.
Audio output is muted
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AUTOMOTIVE MODE > AUTOMOTIVE MODE PAGES
AUTOMOTIVE MODE
This section discusses some of the more common Automotive operations you can perform with your GPSMAP 376C in Automotive Mode.
Please note that many common operations, such as marking a waypoint and creating a route, are performed the same way as in Marine Mode.
See the Marine Mode sections for operations and information not found in this section.
Automotive Mode Pages
Automotive Mode has two main pages (Map and Trip Computer) that are always available. Optional Highway, Compass, and XM Audio
Pages can be turned on in Automotive Mode. When you are actively navigating, the Current Route Page is available if you are navigating a
turn-by-turn route. The Active Route Page is available if you are navigating off road.
Map Page
Optional Compass Optional Highway
Page (see page 47) Page (see page 50)
Current Route Page Trip Computer Page Optional XM Audio
Page (see page 54)
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AUTOMOTIVE MODE > NAVIGATING TO A DESTINATION
Navigating to a Destination
You can navigate to your destination in Automotive Mode using the
Map Page. As you travel, your GPSMAP 376C guides you to your
destination with voice prompts, arrows, and directions along the top
of the screen. When you are actively navigating, you see a magenta
line that always runs from your current location to the destination
or to the next turn on the Map Page. You can use the Map Page,
Compass Page or Highway Page, to help navigate.
You can navigate to a destination using one of the following
methods:
• Select a point on the map, and press the NAV key.
• Press the NAV key to navigate a new route using the Find
Menu, or start a saved route or track.
• Press the FIND key to search for a particular item and create
a route to it.
Navigate Options Menu
Press NAV to open the Navigate options menu.
Navigate Menu
Go To Point—select a waypoint or another point from the Find
Menu to which to navigate.
New Route—create a new route.
Custom Avoids—set up roads to avoid when navigating.
Detour—create a detour route while navigating.
Edit Vias—add points through which you want to travel when
navigating.
Navigate Route—select a route to navigate.
Navigate Track (TracBack)—select a saved track to navigate.
Stop (Resume)Navigation—start or stop navigating.
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AUTOMOTIVE MODE > NAVIGATING TO A DESTINATION
To navigate (Go To) a point on the map:
1. Highlight a point to navigate to, and press NAV.
2. Highlight Go To <point name>, and press ENTER.
3. Follow the magenta line created on the Map Page.
Stopping and Resuming Navigation
When navigating to a point, you can stop navigation. For example,
if you are on a long car trip, but you want to stop for dinner, you can
stop navigation and resume after dinner.
To stop navigation:
1. While navigating to a point, press NAV.
Navigate Menu in Automotive Mode
2. Highlight Stop Navigation, and press ENTER.
3. Highlight Resume Navigation, and press ENTER.
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AUTOMOTIVE MODE > NAVIGATING TO A DESTINATION
To create a new route:
1. Press NAV to open the Navigate Menu.
2. Highlight New Route, and press ENTER.
3. From the Find Menu, highlight Waypoints, and press
ENTER. (You can also choose to go to other points, such as
Cities or Exits from this list. The steps vary only slightly from
those listed for waypoints.)
4. Select a waypoint from the list, and press ENTER to open the
Waypoint Review Page.
5. Highlight the Go To button, and press ENTER to begin
navigation.
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To go to a destination using the Find Menu:
1. Press FIND to open the Find Menu.
2. Highlight a category, and press ENTER.
3. Press ENTER, and use the ROCKER to begin entering the
letters contained in the item name. The list begins to sort by
the items which contain the letters you are entering. Press
ENTER when finished.
4. Highlight the item you want from the list, and press ENTER.
5. Highlight the Go To button, and press ENTER.
For complete information about finding an item, see the “Finding an
Item” section on page 17.
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AUTOMOTIVE MODE > EDITING YOUR ROUTE
Following a Saved Route
Use the Navigate Menu to follow a saved track or route. If you
want to follow roads on your route, press MENU and select Follow
Roads on the Active Route Page.
To follow a saved route:
1.
2.
3.
4.
5.
Press NAV to open the Navigate Menu.
Highlight Navigate Route, and press ENTER.
Highlight the route you want to navigate, and press ENTER.
Press MENU to open the options menu.
Highlight Follow Roads, and press ENTER to create a
turn-by-turn route (auto-route), which appears in the Current
Route Page.
You can also navigate a saved route from the Route tab on the Main
Menu.
Editing Your Route
When you are navigating a route, you can edit that route. You can
add areas and roads to avoid as well as temporary detours to your
current route. You can also add stops along your trip, called Via
Points.
While navigating, press NAV to open the Navigate Menu.
Navigate Menu in Automotive Mode
While navigating a course
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AUTOMOTIVE MODE > EDITING YOUR ROUTE
Entering Custom Avoids
The Custom Avoids feature allows you to enter specific areas and
roads to avoid when navigating. Custom Avoids apply to all routes,
but detours apply to only the active route. You can add Custom
Avoids while you are navigating a route or before you navigate.
To enter a custom avoid:
1. Press NAV while navigating to a destination.
OR
Open the Map Page, and press MENU.
2. Select Custom Avoids, and press ENTER.
3. Press ENTER when the Add Avoid button is highlighted.
4. Select Avoid Road or Avoid Area, and press ENTER.
5. Use the ROCKER to move the arrow to the first point in the
avoidance area. Press ENTER to select the first point.
6. Move the arrow to the end point, and press ENTER. During
route calculation and navigation, the GPSMAP 376C avoids
the area within the box or the selected area of the road.
7. When finished, highlight the OK button, and press ENTER.
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Creating a Detour
If there is road construction or some other form of a detour while
navigating a route, you can have your GPSMAP 376C create a
detour route for you.
To create a detour:
1. While navigating a course, press NAV.
2. Select Detour from the Navigate Menu.
3. Select a distance, and press ENTER. The GPSMAP 376C
recalculates your course based on your detour distance.
4. To end the detour manually, press NAV again, and select
Cancel Detour.
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AUTOMOTIVE MODE > EDITING YOUR ROUTE
Adding and Editing Stops (Via Points)
You can add Via Points—points through which you would like to
travel—to your route using the Edit Vias option.
To add Via Points to your route:
1. While navigating your route, press NAV to open the Navigate
Menu.
2. Select Edit Vias, and press ENTER. The Add/Edit Vias
window opens.
3. Highlight Add Via Point, and press ENTER.
5. If you selected Use Map, use the ROCKER to select an item
on the map, and press ENTER.
If you selected Use Find Menu, select an item from the Find
Menu as discussed in the “Finding an Item” beginning on
page 17. Remember you can press MENU while the Find
Menu is open to find an item near another location, such
as the destination. The new point is added to the route as
shown on the Add/Edit Vias Page.
6. Repeat steps 3 through 5 until you have added all of the Via
Points that you want. Highlight Done, and press ENTER to
apply the new Via Points to the route.
Add/Edit Vias Page
Showing the original route without Via Points
4. From the pop-up window, highlight either Use Map or Use
Find Menu, and press ENTER.
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AUTOMOTIVE MODE PAGES > FOLLOWING AN AUTOMOTIVE ROUTE
Following an Automotive Route
Watch Your Trip Data
Track Your Progress with the Map Page
See Your Next Turn With the Current Route Page
The GPSMAP 376C guides you to your destination using many
tools, such as the Map Page and Current Route Page.
You can track the progress of your route on the Map Page. Your
route is shown with a magenta line. The next turn is shown in the
top bar on the Map Page.
Map Page Displaying Your Route
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Use the Trip Computer Page to view your trip data. You can track
your speed here, as well as other information related to your trip.
Whenever you have initiated a turn-by-turn route with the
GPSMAP 376C set in Automotive Mode, the Current Route Page
shows each turn of the active route. For more information see
page 65.
Current Route Page
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AUTOMOTIVE MODE PAGES > MAP PAGE
AUTOMOTIVE MODE PAGES
Automotive Mode has two main pages (Map and Trip Computer),
that are always available. The Optional Highway Page, Compass
Page, and XM Page can be turned on in Automotive Mode. When
you are actively navigating, the Current Route Page is available if
you are navigating a turn-by-turn route. The Active Route Page is
available if you are navigating off-road. For information about pages
not discussed here, see the “Marine Mode Pages” section.
Map Page
In Automotive Mode, by default, four user-selectable data fields
appear on the right side of the screen that can be configured to show
any one of the possible data options. The top of the screen shows the
GPS status or the route leg. You can also add data fields to the page
or select a full-screen map without data fields.
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Data fields
Current
location
Map scale
Map Page
Press the zoom keys (IN and OUT) to change the map scale. Some
items on the map appear only if the map is zoomed in to a certain
level.
• Press ENTER to quickly declutter (remove unwanted items)
from the Map Page.
• Press MENU to open the options menu for the Map Page.
• Show and hide the heading line from the options menu.
• Use the ROCKER to measure the distance between two
objects on the map.
• Change the page layout and data fields to customize the Map
Page.
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AUTOMOTIVE MODE PAGES > CURRENT ROUTE PAGE
Current Route Page
When navigating a route using your GPSMAP 376C in Automotive
Mode, the Active Route Page shows each turn of the active route,
with the distance to the turn, the street name, and estimated time
to arrival and time of arrival. As you navigate a route, the turn list
automatically updates to indicate the next turn at the top of the list.
Next Turn Page
Saving the Current Route
Current Route Page
You can save the current route from the Current Route Page. Press
MENU to save the route. Press ENTER when Save Route is
highlighted. Your route is automatically saved, using the starting
point and destination as the route name. Press ENTER when OK is
highlighted to finish saving the route.
You can scroll through the entire list by moving the scroll bar up or
down. Highlight any of the turns on the list and press ENTER to
view the Next Turn Page for that turn. The Current Route and Next
Turn Page show similar information using a different layout. The
Next Turn Page shows your next turn on a map.
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AUTOMOTIVE MODE PAGES > TRIP COMPUTER PAGE
Trip Computer Page
The Trip Computer Page shows important data while navigating a
route in Automotive Mode. It indicates your current speed and other
data about your trip, such as average speed and moving time.
Trip Computer Page Options Menu
Press MENU to open the options menu. Highlight an option, and
press ENTER.
Trip Computer Page Options Menu
Trip Computer Page
Reset the Trip Computer before beginning a trip. If you make
frequent stops, leave the GPSMAP 376C turned on in order to
receive satellites. This allows the unit to accurately measure elapsed
time during the trip.
Set Up Page Layout—choose the layout and number of data fields.
Change Nearest Type—allows you to specify the type of item to
be used as the nearest item [shown in the lower-left data field of the
Position Data (2 Columns) layout]. The choices change based on
the current Usage Mode.
Reset (Trip, Max Speed, Odometer, All)—options to reset the
maximum speed, the odometer, everything but the max speed and
odometer, or reset everything in the trip computer.
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MAIN MENU > MAIN MENU TABS
MAIN MENU
The Main Menu provides access to various waypoint, system,
navigation and interface management, and setup menus.
Main Menu
To select a tab from the Main Menu:
1. From any page, press MENU twice to open the Main Menu.
2. Highlight the tab you want. The information for the highlighted
tab automatically appears on the right. To highlight a sub
tab, press left or right on the ROCKER, and then press up or
down to select individual fields.
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Main Menu Tabs
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
GPS—view satellite information.
Weather—view individual weather features.
XM—view and select XM Radio channels.
Route—create and store routes.
Points—view stored waypoints.
Track—record and save tracks.
DSC—set up digital select calling features.
Sonar—configure sonar options.
Alarms—define alarm settings.
Calendar—view sun/moom and hunting/fishing information
for a specific day.
Celestial—view tide, hunting & fishing, and sun & moon
information.
Message—view system-generated messages.
Display—adjust backlighting and page display.
Sound—customize GPSMAP 376C sounds.
Setup—adjust system settings.
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MAIN MENU > GPS TAB AND WEATHER TAB
GPS Tab
The GPS tab provides a visual reference of satellite acquisition,
receiver status, and accuracy. The sky view and signal strength bars
give an indication of what satellites are visible to the receiver and
whether they are being tracked. For more information about GPS,
see pages 4-6.
Weather Tab
Use the Weather tab on the Main Menu to view individual weather
features without turning all other weather features on or off. For
example, you can select Storm Cells to view only storm cells on
the Map window that appear on the Weather tab. When you close
the Main Menu and return to the Map Page, all of your previously
selected weather features still appear on the Map Page.
NOTE: You must have a subscription to XM WX Weather and
the GXM 30 antenna must be plugged into the USB port on the
back of the unit to use features described in this section.
Main Menu—GPS Tab
Main Menu—Weather Tab
For more information about XM Weather, see the “Using XM WX
Weather” section beginning on page 95.
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MAIN MENU > XM TAB
XM Tab
The XM tab is where you can view and select XM Radio channels,
add or delete favorites, and obtain radio ID and XM WX Weather
service level information. The XM tab is divided into two sub tabs:
Audio and Information.
NOTE: The XM tab always appears on the Main Menu,
regardless of whether the XM Audio Page is turned on or off.
For more information about the XM Audio Page, see page 52.
Channels
Use the Information sub tab to view the radio identification number,
XM WX Weather subscription information, and a list of weather
features available to you based on your subscription plan. The
Information sub tab also shows the age of each weather report in
minutes.
Radio ID
Subscription
package
Category name
Available
weather
products
Artist name
Song title
Channel
number
Channel
name
Information Sub Tab
Main Menu—XM Tab
Signal
strength
indicator
Information Sub Tab
Age of
weather
report (in
minutes)
For more information about XM Weather, see the “Using XM WX
Weather” section beginning on page 95.
Audio Sub Tab
The Audio sub tab shows XM Radio channel categories, a list of
available channels, information about the selected channel, and the
strength of the XM signal.
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MAIN MENU > ROUTE TAB AND POINTS TAB
Route Tab
The Route tab shows all the routes currently stored in memory,
along with a descriptive name for each route.
Use the Route tab to create and store up to 50 reversible routes, with
up to 300 points each. See the “Creating and Using Routes” section
beginning on page 20 for more information about routes.
Points Tab
The Points tab contains two sub tabs, User and Proximity, which
allow you to manage a large number of waypoints quickly and
efficiently. For more information about waypoints, see the “Creating
and Using Waypoints” section beginning on page 24.
Main Menu—Points Tab
Main Menu—Route Tab
User Sub Tab
The User sub tab shows a master list of all waypoints currently
stored in memory. The total number of stored and available
waypoints appears at the bottom of the User sub tab.
Proximity Sub Tab
Use the Proximity sub tab to define an alarm circle around a stored
waypoint location.
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MAIN MENU > TRACK TAB AND DSC TAB
Track Tab
Use the Track tab to specify whether or not to record a track log,
define how it is recorded, or save the track log data for future use.
The Track tab is divided into two sub tabs: Active and Saved. For
more information about tracks, see the “Managing Your Tracks”
section beginning on page 34.
DSC Tab
Use the DSC tab (Marine Mode only) to control and set up the
Digital Selective Calling (DSC) features. DSC uses marine VHF
radio and GPS to transmit and receive location information. DSC is
used by mariners for distress calls and position reporting.
For more information about DSC and Maritime Mobile Service
Identity (MMSI) numbers, see page 127 in the “Appendix”.
Main Menu—Track Tab
Active Sub Tab
DSC Page
The Active sub tab is for the active log (the log currently being
recorded). It shows the amount of track memory used and current
settings.
Saved Sub Tab
The Saved sub tab shows a list of all saved tracks in your
GPSMAP 376C.
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MAIN MENU > DSC TAB
Understanding Distress Calls
With your GPSMAP 376C properly connected to a VHF radio with
DSC output, you can receive any DSC distress call within range.
An alert message appears and a tone sounds when a distress call is
received. The alarm only sounds on a distress call; position reports
do not sound the alarm. Distress calls are broadcast to all DSC users
in radio range and appear with a blue and white checkered icon on
the DSC Call List and Log tabs.
You can enter a caller’s name, if it is known. The caller’s name
replaces the MMSI number as a reference once entered.
Each entry in the Call List and Log has a corresponding DSC Entry
Review Page. This page operates similarly to the Distress Page and
Position Report Page. From the DSC Entry Review, you can Delete
the entry, Save it as a waypoint, or show the location on the map.
To review a call or log entry:
1. Open the Call List or Log from the DSC tab.
2. Highlight the call you want to review.
3. Press ENTER to open the DSC Entry Review Page.
Understanding Position Reports
The Position Report operates similarly to the distress call. This type
of contact is like a phone call; no emergency alarms are set off.
Position reports are not broadcast to all DSC users and appear with a
gold boat icon.
Receiving DSC Calls
DSC Entry Review Page
Each time you receive a distress call or position report, a review
page opens—either a DSC Position Report Page or a Distress Call
Page. Both pages contain identical fields to the DSC Entry Review
Page.
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MAIN MENU > DSC TAB
DSC Call List
The Call List sub tab shows the 50 most recent calls, even if the unit
is left unattended. The Call List only shows the most recent call from
a vessel. If a second call is received, it replaces the first call in the Call
List. Press MENU to sort the list and delete entries.
DSC Log
Receiving a Position Report or Distress Call
DSC Call List
DSC Log
When DSC calls are received, they are automatically stored
in the Log, with the most recent call at the top. The unit
can store up to 100 calls; after 100 calls are received, the
oldest log file is removed when a new call is received.
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After you receive a Position Report or a Distress Call, you can
quickly navigate to the location. Highlight a call from the Call List
or Log and press Direct To. The top selection in the Navigate Menu
is highlighted. Press ENTER to go to the location.
DSC Directory
The DSC Directory is like a phone book and can hold up to 50
entries.
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MAIN MENU > DSC TAB
DSC Directory
entries. Press
ENTER to
open the entry
review page.
Blank entry.
Press ENTER to
add a Directory
entry.
DSC Directory list
To add a new directory entry:
1. Open the DSC Directory on the Main Menu.
2. Highlight the first blank space in the directory list, and press
ENTER.
OR
Press MENU, highlight New Item, and press ENTER.
3. Enter the MMSI number, the name, and any comments.
4. When finished, highlight OK, and press ENTER.
Enter the
MMSI number,
name, and a
comment (if
needed) in the
fields.
Highlight OK
and press
ENTER to save
the Directory
Entry.
New Directory Item Page
After creating a New Directory Item, the name created is attached to
that particular MMSI number. If you return to the log, the new name
appears under the corresponding MMSI number.
Another way to input a name is from the Entry Review Page or the
DSC Distress Call or DSC Position Report Pages. The Name and
MMSI are sent to other Garmin GPS units: Only the MMSI numbers
are sent to other non-Garmin DSC users.
Making a Distress Call
To make a Distress Call, press the MayDay button on your VHF
radio. The call transmits on an emergency channel with the MMSI
number attached to the call, if you have DSC support. Any DSCequipped mariner (on sea or land) within range can receive the call.
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MAIN MENU > SONAR TAB
Setting Up DSC
Use the Setup sub tab to turn DSC on and off. If you have more than
one chartplotter and only want DSC to show on another chartplotter,
turn DSC off on this unit.
This Setup sub tab also allows you to simulate Distress Calls and
Position Reports while the unit is in Simulator Mode, see page 12.
Simulating calls is helpful for practice before connecting to the real
system. The Distress Call simulator also helps to check if alarms are
working properly.
Sonar Tab
Use the Sonar tab to set up and configure sonar. See the “Setting
Up and Using Sonar” section beginning on page 103 for more
information about Sonar setup options.
NOTE: You must have a GSD 20 or 21 Sounder Module
connected to your GPSMAP 376C to use sonar.
Main Menu—Sonar Tab
DSC Setup
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MAIN MENU > ALARMS TAB
Alarms Tab
To set a persistent alarm:
Use the Alarms tab to define alarm settings. When an alarm goes off,
the alarm message appears on the GPS 376C and the unit emits five
(5) beeps.
1. Highlight the Alarms tab on the Main Menu.
2. Highlight the box next to the alarm you want to make
persistent.
3. Press ENTER to place a check mark in the Persist box.
Navigation (Nav) Alarms
Next Turn—sets an alarm to indicate the next turn in a route. Select
Dist to specify a distance before you reach the next turn to sound the
alarm. Select Time to specify a time before the turn for the alarm to
go off. Select Auto for the unit to provide a Next Turn alarm at its
discretion.
Main Menu—Alarms tab
To set an alarm:
1. Highlight the Alarms tab on the Main Menu.
2. Select an alarm to set, and press ENTER.
3. Change the setting to On, and press ENTER. If necessary,
highlight the next field to the right, and press ENTER. Enter
the settings you want.
4. Press ENTER to finish.
Arrival—sets an alarm to sound when you are a specified distance
or time away from a destination waypoint. Select Auto for the unit
to provide an Arrival alarm at its discretion.
Off Course—sets an alarm to sound when off course. Select On,
then enter a distance.
Anchor Drag—sets an alarm to sound when you exceed a specified
drift distance. Select On, and then enter a distance.
When you set an alarm to be persistent, the alarm message appears
on the screen and the GPSMAP 376C beeps until you press ENTER
to acknowledge the alarm.
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MAIN MENU > ALARMS TAB
System Alarms
Clock—sets an alarm based on the unit’s clock. Select On, and
then enter a specific time that you want the alarm to sound. The
GPSMAP 376C must be on for the clock alarm to work.
Ext. (External) Voltage—sets an alarm to sound when the external
voltage drops below a specified amount. Select On, and then enter a
specific voltage.
DGPS—sets an alarm to sound when the GPSMAP 376C loses a
differential fix.
Accuracy—sets an alarm to sound when GPS accuracy falls outside
of the user-set value. Select On, and then specify a distance.
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Weather Alarms
Tornado Warnings—sets an alarm to sound when you enter an area
where a tornado warning is in effect.
Thunderstorm Warnings—sets an alarm to sound when you enter
an area where a severe thunderstorm warning is in effect.
Flood Warnings—sets an alarm to sound when you enter an area
where a flood warning is in effect.
Flash Flood Warnings—sets an alarm to sound when you enter an
area where a flash flood warning is in effect.
Marine Warnings—sets an alarm to sound when you enter an area
where a marine warning is in effect.
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MAIN MENU > CALENDAR TAB
Sonar Alarms
Shallow Water/Deep Water—sets an alarm to sound when you
enter an area of water that is too shallow or deep. Select On, and
then specify a depth. You must be receiving sonar NMEA data for
this function to work.
Water Temp—sets an alarm to indicate if the water temperature has
exceeded or dropped below a specific temperature, or fallen outside/
inside a specific temperature range. Select Above or Below and then
enter a specific temperature, or select Inside or Outside and enter a
range of temperatures. You must be receiving sonar NMEA data for
this function to work.
Drift—sets an alarm to sound when you exceeded a specified drift
distance. Select On, and then enter a specific distance.
Fish—sets an alarm to sound when fish are detected with sonar.
Calendar Tab
Use the Calendar tab to plan trips, view sun and moon, and hunting
and fishing information for the day.
Highlight an arrow and press ENTER to change the date in the view.
Sunrise and set
times for the
current location
and date.
List of points
and routes
added to this
date.
Calendar Tab in Day View
Calendar Options
The options menu is available in all three calendar views. Press
MENU on any of the calendar views to open the options menu. To
view the Sun & Moon Information or Hunt & Fish sub tab, highlight
View Sun and Moon or View Hunt and Fish, and press ENTER.
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MAIN MENU > CELESTIAL TAB
To add a route (or point) to the calendar:
1. Highlight the Calendar tab on the Main Menu. The current
day appears on the Day View sub tab.
2. Press MENU to open the options menu. Highlight Add Route
(or Add Point), and press ENTER.
3. From the pop-up route list (or the Find Menu if Add Point
was selected), select the route you want to add to the
calendar, and press ENTER.
Celestial Tab
The Celestial tab shows tide information, sun and moon information,
and hunting and fishing information. You can view data for your
current location, a location from the map, or a waypoint location.
Also, you can select a different date and time, or use the current
data.
Day View Sub Tab
The Day View sub tab shows sunrise and sunset times for your
current date and location. Points and routes for the day appear in a
list.
Week View Sub Tab
The Week View sub tab provides the same elements as Day View,
but the entire week is visible. Days with added points or routes are
shown highlighted in green. Icons for the points and routes assigned
to the date are shown along the bottom of the screen.
Month View Sub Tab
The Month View sub tab provides the same elements as Day View,
but the entire month is visible. Days with added points or routes are
shown highlighted in green. Icons for the points and routes assigned
to the date are shown along the bottom of the screen.
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Main Menu—Celestial Tab
To access the Celestial tab:
1. Highlight the Celestial tab on the Main Menu.
2. Use the ROCKER to show the sub tab you want, such as
Sun & Moon.
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MAIN MENU > CELESTIAL TAB
Tide Sub Tab
The Tide sub tab contains a graphical chart that shows tide station
information in a 24-hour span starting at midnight station time. You
can choose from different dates and more than 3,000 tide stations.
Enter the date for which you want to
view the tide information.
Select the tide station for which you
want to view the information.
Time
Height of tide
To view a tide chart for a different tide station:
1. From the Tide sub tab, highlight the At field, and press
ENTER. The Find Menu opens showing the tide stations.
2. Press MENU, and select Near Current Location, Near
Current Route, Near Other (select another location using
the map), or Near Destination. The list is updated with your
search requirements.
3. Select a tide station from the list, and press ENTER. The
Tide Station Information Page opens.
4. Highlight OK, and press ENTER. The Tide tab appears again
showing the tide chart for the selected tide station.
Smallest and
largest tides
for the AM
hours
Tide Sub Tab
Smallest and
largest tides
for the PM
hours
The top of the page shows the tide station and date being referenced.
The chart shows a 24-hour block of time, with the time progressing
from left to right. The solid vertical lines represent 4-hour
increments; the dotted vertical lines represent 1-hour increments.
The tide curve appears as a shaded area; higher tides are taller and
lower tides are shorter. The bottom of the page indicates the times
with the highest and lowest tides.
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To view the tide chart for another date:
1. From the Tide sub tab with a chart open, highlight the On
field, and press ENTER.
2. ENTER the date with the ROCKER, and press ENTER. You
can also use the zoom IN and OUT keys to view information
for another date. Press and hold IN or OUT to scroll quickly
through dates.
3. Press ENTER when finished. The unit shows the chart for the
date you entered or selected.
To use the current date again, highlight the Date field. Press MENU,
highlight Use Current Date, and press ENTER.
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MAIN MENU > CELESTIAL TAB
To view a chart’s details for another time during the
day (other than current time):
1. From the Tide sub tab with the chart you want to view, press
MENU, and then select Move Cursor.
2. Press the ROCKER right or left to view the chart at another
time.
3. To return to the current time, press MENU, and select Stop
Moving Cursor.
To automatically start cursor mode to scroll the chart:
1. Highlight the Date field. Then press down to start the pointer
(pan) mode.
2. Scroll the chart right to view the next day or left to view the
previous day.
Sun & Moon Sub Tab
The Sun & Moon sub tab provides you with sunrise/sunset and
moon rise/set times. A graphic of the moon phase also appears.
You can view Sun & Moon information for any date or location.
You can also use the play, fast forward, and stop buttons to view an
animation of the Sun & Moon sub tab.
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To view sun and moon information for a different date:
1. Highlight the Date field, and press ENTER.
2. Use the ROCKER to change the digits of the date to the date
you want. You can also use the zoom IN and OUT keys to
view information for another date. Press and hold IN or OUT
to scroll quickly through dates.
3. Press ENTER when finished. The unit shows the sun and
moon information for the selected date.
4. To use the current date again, highlight the Date field. Press
MENU, highlight Use Current Date, and press ENTER.
Select the
date and
location
Moon phase
Animation
controls for the
sky view
Location of the
sun and moon
in the sky view
Sun & Moon Sub Tab
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MAIN MENU > CELESTIAL TAB
To view sun and moon information for a different
location:
1. Highlight the From field, and press ENTER.
2. Highlight Use Find Menu, and press ENTER. The Find Menu
automatically opens.
3. Select a waypoint or point of interest, and press ENTER.
4. On the waypoint information page, press ENTER. The unit
shows the sun and moon information for the location you
selected.
Hunt & Fish Sub Tab
The Hunt & Fish sub tab provides you with predictions of the best
times to hunt and fish in a selected location on a specific date.
To show the Hunt & Fish information:
1. Highlight the Celestial tab on the Main Menu.
2. Select the Hunt & Fish sub tab.
To use the current location, highlight the From field. Press ENTER,
highlight Current Location, and press ENTER again.
Hunt & Fish Sub Tab
To view hunt and fish information for a different date:
1. Highlight the Date field, and press ENTER.
2. Use the ROCKER to change the digits of the date. You can
also use the zoom IN and OUT keys to view information for
another date. Press and hold IN or OUT to scroll quickly
through dates.
3. Press ENTER when finished. The unit shows the information
for the date you entered.
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MAIN MENU > MESSAGE TAB
To use the current date again, highlight the Date field. Press MENU,
highlight Use Current Date, and press ENTER.
To view hunt and fish information for a different
location:
1. Highlight the From field, and press ENTER.
2. Highlight Use Find Menu, and press ENTER. The Find Menu
opens.
3. Select a point, and press ENTER.
4. On the information page, press ENTER. The unit shows Hunt
& Fish information for the selected location.
Message Tab
The Message tab shows a list of messages generated by the
GPSMAP 376C. Use the ROCKER to scroll through the list of
messages on the Log sub tab. Use the Log Filter sub tab to show
only the message types that you want to view.
To use the current location:
1. Highlight the From field, and press ENTER.
2. Highlight Current Location, and press ENTER.
Main Menu—Message Tab
To view messages:
1. Highlight the Message tab on the Main Menu.
2. Highlight a message.
3. Press ENTER to view detailed information about the
message.
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MAIN MENU > DISPLAY TAB
To show or hide messages using the log filter:
1. Highlight the Message tab on the Main Menu.
2. Highlight the Log Filter sub tab. All messages appear by
default.
Message Log Filter Tab
3. Highlight the message type you want to hide, and press
ENTER. The message name appears in the Hide window.
4. Highlight the message, and press ENTER to show it again.
Display Tab
Use the Display tab to set display features, such as pages to show in
the main page sequence and how long the backlight stays on.
Main Menu—Display Tab
Main Menu—indicates whether the Main Menu tabs contain text
and icons (default) or text tabs only.
Color Mode—sets the display to Day, Night, or Auto color mode.
Select Auto to automatically switch from day to night at sunset and
change back at sunrise.
Backlight Timeout—sets the backlight to stay on when it is turned
on, or to time out after a selected period of time has elapsed when
using the battery. The backlight stays on regardless of this setting
when external power is used.
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MAIN MENU > SOUND TAB
Twilight Adjustment—allows the unit to adjust the backlight for
optimum viewing during twilight times.
Highway Page—indicates whether the Highway Page appears in the
main page sequence.
Sound Tab
Use the Sound tab to customize the sounds made by your
GPSMAP 376C.
XM Audio Page—indicates whether the XM Audio Page appears in
the main page sequence.
Compass Page—indicates whether the Compass Page appears in the
main page sequence.
Backlight Intensity—turns the backlight up or down. Press right on
the ROCKER to increase the intensity or left to decrease.
Main Menu—Sound Tab
Beeper—sets the beeper to chime during key presses and alarms
(Key and Alarm) or on Alarms Only.
Attention Tone—turns on and off the attention tone that sounds
before the vocal prompts.
Voice Prompt—sets the vocal prompt to operate for Guidance and
Status, Route Guidance Only, or No Voice Prompts.
Voice Language—sets the language for vocal prompts.
Speaker Volume—sets the external speaker or headphone volume.
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MAIN MENU > SETUP TAB
Setup Tab
To customize how your GPSMAP 376C looks, use the System tab to
adjust certain system settings.
System Sub Tab
Use the System sub tab to control settings for system mode, speed
filter, language, and external power.
To access the System sub tab:
1. Highlight the Setup tab on the Main Menu.
2. Select the System sub tab.
Usage Mode—sets the unit to operate in Marine (default) or
Automotive Mode.
Speed Filter—allows the unit to average speed readings. Choose
from Off, Auto (automatically controls filtering), or On (allows you
to enter a value in seconds).
Text Language—sets the unit’s on-screen language.
WAAS—allows you to enable or disable WAAS.
External Power Off—indicates whether the GPSMAP 376C
remains on (Stay On) or the unit turns off (Turn Off) when external
power is removed from the unit.
External Power On—indicates whether to turn on the
GPSMAP 376C (Turn On) or charge the battery (Charge Battery)
when external power is applied to the unit.
Main Menu—System Setup Tab
System Mode—sets the unit to operate in Normal mode, Battery
Saver mode, or Simulator mode (for practice ONLY).
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MAIN MENU > SETUP TAB
Road Routing Sub Tab
Use the Road Routing sub tab to select road routing settings.
To access the Road Routing sub tab
1. Highlight the Setup tab from the Main Menu.
2. Select the Road Routing sub tab.
Road Routing Sub Tab
Route Preference—allows the unit to calculate routes based on:
• Faster Time—routes calculated are faster to drive but might
be longer in distance.
• Shorter Distance—routes calculated are shorter in distance
but might take more time to drive.
• Off Road—creates a direct line from your current location to
your destination. This is useful when traveling outside of the
detailed map coverage area or where no roads exist.
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Ask My Preference—determines whether you are asked to select a
Route Preference before route calculations.
Calculation Method—sets how the unit searches for the route.
• Quickest Calculation—calculates the route the quickest, but
it might not produce the best route.
• Quick Calculation—takes a bit more time to calculate but
generates a better quality route.
• Better Route—generates an even better quality route but uses
a longer calculation time.
• Best Route—generates the most optimal route but takes the
longest time to calculate.
Calculate Routes for—sets route calculation for the particular
vehicle you are operating to optimize the route for your vehicle type.
Avoid—allows you to avoid certain road types and maneuvers on
your route. The unit uses these road types only if alternative routes
take you too far out of your way or if no other road is available.
Custom Avoids—allows you to enter specific areas and roads that
you would like to avoid in your navigation.
Custom Road Prefs—allows you to avoid or use Major, Medium,
and Minor roads using a slider scale. This is useful if you want to
avoid major highways, for example. Select Auto Set to use preset
values.
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MAIN MENU > SETUP TAB
Guidance Sub Tab
Use the Guidance sub tab to set guidance information.
To access the Guidance sub tab
1. Highlight the Setup tab from the Main Menu.
2. Select the Guidance sub tab.
Timers Sub Tab
Use the Timers sub tab to set timers and view information about how
long the unit has been on.
To access the Timers sub tab
1. Highlight the Setup tab from the Main Menu.
2. Select the Timers sub tab.
Guidance Sub Tab
Timers Sub Tab
Off-Route Recalculation—allows you to set whether the unit
prompts you when it is recalculating your route (Prompted), or
recalculates automatically. Set whether the unit announces the
recalculation (Automatic - Announced) or recalculates silently
(Automatic - Silent). You can turn the off-route recalculation Off.
User—allows you to set the timer to Count Up or Count Down.
You can also Reset the timer and turn it Off. Enter a time to use
when counting up or down.
Next Turn Pop-up—turns the Next Turn pop-up window Off, or
opens the window when you press NAV (Held NAV Key Only),
opens automatically (Automatically Only), or Both.
Since Midnight—shows the time the unit was turned on since
midnight. To reset, select All Unit Defaults on the System sub tab.
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Marine—appears on the Compass Page in Marine Mode.
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MAIN MENU > SETUP TAB
Time Sub Tab
Use the Time sub tab to set the time format and zone, and set the
unit to conform to Daylight Saving Time. The current time and date
appear in the Current Time and Date field.
To access the Time sub tab
1. Highlight the Setup tab on the Main Menu.
2. Select the Time sub tab.
Time Sub Tab
Time Zone—choose the time zone for your city so the
GPSMAP 376C shows the correct local time. Select Other to enter
a UTC Offset.
If the wrong date appears, press MENU, highlight Set Date, and
press ENTER. You are prompted to enter the current year. The
GPSMAP 376C uses this information when gathering satellite data
to show the correct date.
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Units Sub Tab
Use the Units sub tab to customize measurement units.
To access the Units sub tab
1. Highlight the Setup tab on the Main Menu.
2. Select the Units sub tab.
Distance and Speed—selects the unit of measure to show your
speed and distance traveled.
Direction Display—selects the unit of measure to show your
direction. Mils is a unit of angle measurement used in military
settings, in which 17.78 mils equal one degree.
Temperature—selects the unit of measure to show the temperature.
Elevation—selects the unit of measure to show your altitude.
Depth—selects the unit of measure to show the depth.
Vertical Speed—selects the unit of measure to show the vertical
speed.
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MAIN MENU > SETUP TAB
Location Sub Tab
Use the Location sub tab to change location setting information.
To access the Location sub tab
1. Highlight the Setup tab on the Main Menu.
2. Select the Location sub tab.
See the “Appendix” for more information about location formats
and map datums. Also visit the National Imagery and Mapping
Agency at www.nima.mil for more information on grids and datums.
Changing the Location Format
When you change the Location Format, you change the coordinate
system in which a given location reading appears. The default
format is latitude and longitude in degrees, minutes, and thousandths
of a minute (hddd°mm.mmm). Only change the location format if
you are using a map or chart that specifies a different location format
or want to use a format you are familiar with.
Selecting a Different Map Datum
Datums are used to describe geographic positions for surveying,
mapping, and navigation and are not actual maps built in the unit.
Only change the datum if you are using a map or chart that specifies
a different datum.
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The default setting is WGS 84. The unit automatically selects the
best datum depending on your chosen location format.
WARNING: Selecting the wrong map datum can result in
substantial position errors. When in doubt, use the default WGS
84 datum for best overall performance.
Selecting a Different Heading Reference
You can select from Auto Mag Var, True, Grid, and User Mag Var.
Auto Mag Var provides magnetic north heading references that are
automatically determined from your current location. True provides
headings based on a true north reference. Grid provides headings
based on a grid north reference (and is used in conjunction with
the grid position formats). User Mag Var allows you to specify the
magnetic variation at your current location and provides magnetic
north heading references based on the variation you enter. Enter
the magnetic variation of your current location in the Magnetic
Variation field if you selected User Mag Var for the heading.
WARNING: If User Mag Var is selected, the unit does not
automatically calculate and update the magnetic variation at
your present location. You must update the magnetic variation as
your location changes. Failure to update this setting can result in
substantial differences between the information shown on your
unit and external references, such as a magnetic compass.
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MAIN MENU > SETUP TAB
Welcome Sub Tab
Use the Welcome sub tab to enter information, such as your name
and address, or a welcome message that appears when you turn on
your GPSMAP 376C.
To access the Welcome sub tab:
1. Highlight the Setup tab on the Main Menu.
2. Select the Welcome sub tab.
3. To show the welcome message when you turn on your
GPSMAP 376C, highlight the Show at Power-up check
box, and press ENTER to select it. To hide the welcome
information at start-up, clear the check mark.
Interface Sub Tab
Use the Interface sub tab to change the data format and control the
input/output format used when connecting your unit to external
devices.
To access the Interface sub tab:
1. Select the Setup tab on the Main Menu.
2. Select the Interface sub tab.
Welcome Sub Tab
To add a welcome message:
1. Highlight one of the Welcome Message fields, and press
ENTER.
2. Use the ROCKER to enter information in the fields. You do
not need to enter information in every field. When finished,
press ENTER again.
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Interface Sub Tab
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MAIN MENU > SETUP TAB
Serial Data Format—sets the data format to one of the following:
• Garmin Data Transfer—provides the proprietary format
used to exchange data with a computer or another Garmin
unit. Garmin Data Transfer is disabled when the USB is
connected, and the unit automatically switches to USB format.
When the USB is disconnected, the USB field changes to
Transfer Mode.
• GARMIN DGPS—connects the GPSMAP 376C with a
Garmin DGPS beacon receiver.
• Garmin Remote Sonar—connects the GPSMAP 376C with
a GSD 20 or GSD 21 Sounder Module and transducer.
• NMEA In/NMEA Out—supports the input/output of
standard NMEA 0183 version 3.01 data and sonar NMEA
input support for the DBT, DSE, DPT, MTW, and VHW
sentences.
• RTCM In—allows DGPS input using a standard RTCM
format.
• RTCM In/NMEA Out—allows DGPS input using a standard
RTCM format and also provides NMEA 0183 version 3.01
output.
• RTCM In/Text Out—allows Differential GPS (DGPS) input
using a standard RTCM format and also outputs simple text
data that includes, data, time, location, and velocity.
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• Text Out—allows the unit to output simple text data that
includes, data, time, location, and velocity. The Baud can be
set to 1200, 2400, 4800, or 9600.
• None—provides no interfacing capabilities.
If you select GARMIN DGPS or RTCM In/NMEA Out format,
you can control a differential beacon receiver directly from your
GPSMAP 376C using the Interface sub tab. You can have the unit
automatically scan for the DGPS beacon signal, or you can enter
the beacon frequency and bit rate on the unit, and the information is
used to tune the beacon receiver. If you use a DGPS receiver, WAAS
capability is automatically turned off.
To have the unit automatically scan for a frequency:
1. Set the unit to GARMIN DGPS or RTCM In/NMEA Out.
2. Highlight the Beacon field, and press ENTER.
3. Highlight Scan, and press ENTER. The numbers in the
Frequency field change as the unit scans from 284 kHz to
325 kHz, 200 bit rate, then 100, at 6-second intervals.
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MAIN MENU > SETUP TAB
Highlight Scan
and press
ENTER.
Shows the
status of the
scan
To restart the scan:
1. Press MENU.
2. Highlight Restart Scan, and press ENTER.
To manually enter a frequency and bit rate:
Interface sub tab with GARMIN DGPS selected
The Status field shows one of the following:
• Tuning—the unit is attempting to tune to the specified
frequency and bit rate.
• Scanning—the unit is automatically scanning through the
frequencies and bit rates.
• Receiving—the unit is receiving DGPS signal and ready for
operation.
• Check Wiring—the unit is not making connection with
DGPS receiver.
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1. With the unit set to GARMIN DGPS or RTCM In/NMEA Out,
highlight the Beacon field, and press ENTER.
2. Highlight User, and press ENTER.
3. Highlight the Frequency or Bit Rate field, and press ENTER.
4. Enter a frequency or bit rate. Press ENTER when finished.
When the unit is receiving a DGPS signal, the Signal to Noise Ratio
(SNR) and Distance fields show data. The SNR range is 0 dB to 30
dB, with 30 being the best. The Distance field might or might not
show data, depending on the signal being broadcast from the DGPS
site.
The DGPS beacon transmitters are operated by the United States
Coast Guard (or a similar government agency in other countries),
which is responsible for their accuracy and maintenance. For DGPS
transmitter problems, or to find the most updated list of frequencies
and coverage areas, contact your local USCG or see their Web site at
www.navcen.uscg.mil/.
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MAIN MENU > SETUP TAB
Advanced NMEA Output Setup
If you are going to interface the GPSMAP 376C with another
piece of equipment (such as a radar or autopilot), the unit needs
to be set to output NMEA data. The NMEA data transmission can
be customized to keep the output rate at two seconds. If too many
NMEA sentences are activated, the unit might take longer than two
seconds to update.
You can also set the Output Rate to Fast to output a minimum
number of NMEA sentences at 1-second intervals.
To access the Advanced NMEA Output Setup:
1.
2.
3.
4.
5.
Highlight the Setup tab on the Main Menu.
Select the Interface sub tab.
Highlight the Serial Data Format field, and press ENTER.
Select NMEA In/NMEA Out, and press ENTER.
Press MENU to open the options menu. Select Advanced
NMEA Setup, and press ENTER.
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Advanced NMEA Output Setup
Use the Advanced NMEA Output Setup Page to set the output rate,
change the precision of the Lat/Lon minutes, set Waypoint IDs to
names or numbers, and turn on and off the GPS status, the GARMIN
proprietary sentences, and Waypoint/Route (WPL, RTE).
GPSMAP 376C NMEA Sentence Output (NMEA version 3.01
compliant):
• Always transmitted: GPRMC, GPGGA, GPGLL, GPBWC,
GPVTG, GPXTE, GPRMB
• Switchable sentences: GPGSA, GPGSV, GPWPL, GPRTE
• GARMIN proprietary: PGRME, PGRMZ, PGRMM
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USING XM WX WEATHER > VIEWING XM WX WEATHER AND SETTING XM WX WEATHER OPTIONS
USING XM WX WEATHER
This section describes how to use XM WX Satellite Weather with
your GPSMAP 376C. You must have a subscription to XM WX
Weather, and you must plug your GXM 30 antenna into the USB
port on the back of the unit to receive the XM signal. If you do not
have a subscription to XM WX Weather, the features described in
this section work only when the GPSMAP 376C is in Simulator
Mode and the GXM 30 antenna is unplugged.
Viewing XM WX Weather
From the Map Page, you can turn weather information on or off.
To turn XM WX Weather on or off on the Map Page:
Press and hold the MENU/Wx key to toggle XM Weather on
or off.
OR
Press MENU, select Hide (Show) Weather, and then press
ENTER.
You can view XM WX Weather on your GPSMAP 376C in one of
three ways:
• To view all weather information on the map, use the Map
Page.
• To view a specific weather feature such as NEXRAD Radar or
Storm Cells, for example, you can use the Weather tab on the
Main Menu. For more information, see page 96.
• To view current weather conditions and forecast information
for your current location or a specific location, use the
Weather Data option on the Find Menu. For more information,
see page 101.
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Map Page with XM WX Weather
Setting XM WX Weather Options
Use the Map Page options menu to adjust the way weather items
appear on the Map Page. Three tabs—Weather, Srfc Wx, and Mrn
Wx—allow you to adjust what weather items appear on the Map
Page, and the scale at which they appear. For detailed information
about specific weather features, see the GXM 30 Owner’s Manual.
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USING XM WX WEATHER > SETTING XM WX WEATHER OPTIONS
To set up weather options on the Map Page:
1. From the Map Page, press MENU to open the options menu.
2. Highlight Set Up Map, and press ENTER.
Weather Tab
Use the Weather tab to turn XM WX Weather data on or off on the
Map Page, and set the map scale at which weather information first
appears on the Map Page.
Map Page Options Menu
3. Highlight the Weather, Srfc Wx, or Mrn Wx tab.
4. Highlight the field you want to change, and press ENTER.
5. Press PAGE or QUIT to exit.
Weather Tab
Weather Data—Allows you to turn XM WX Weather data on or off
from the Map Page.
NEXRAD Radar, Satellite Mosaic, Lightning, Storm Cells,
Hurricanes—sets the map scale at which feature first appears on the
Map Page. Select Auto, Off, or from 20 ft to 800 nm.
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USING XM WX WEATHER > SETTING XM WX WEATHER OPTIONS
Srfc Wx Tab
Use the Srfc Wx tab to set the map scale at which surface weather
information first appears on the Map Page.
Srfc Wx Tab
Surface Winds, Surface Pressure, Fronts, Visibility, County
Warnings—sets the map scale at which each feature first appears on
the Map Page. Select Auto, Off, or from 20 ft to 800 nm.
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Mrn Wx Tab
Use the Mrn Wx tab on the Map Page Options to set up marine
weather options.
Mrn Wx Tab
Water Temperature, Wave Period, Wave Direction, Wave
Height, Marine Warnings—sets the map scale at which each
feature first appears on the Map Page. Select Auto, Off, or from
20 ft to 800 nm.
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USING XM WX WEATHER > USING THE WEATHER TAB
Using the Weather Tab
Use the Weather tab on the Main Menu to quickly view individual
weather settings without turning all other weather features on or off.
For example, you can select Storm Cells to view only storm cells on
the Map window that appears on the Weather tab. When you close
the Main Menu and return to the Map Page, all of your previously
selected weather features still appear on the Map Page.
Depending on which mode you are in, different options appear. Use
the zoom IN and OUT keys to zoom in or out on the map.
3. Select (scroll through) the weather information type you
want to view. The map refreshes to show only the selected
information type.
From the Weather tab, you can view the current conditions or
forecast on the map for the next 12, 24, 36, or 48 hours.
To view the forecast map:
1. In the Weather Information Type field, highlight Forecast.
The Map window shows the current forecast in the Map
window.
Weather information type
Map
window
Weather Tab with Storm Cells
To view a specific XM WX Weather Information Type:
1. Highlight the Weather tab on the Main Menu.
2. Select the Weather Information Type field.
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Map
window
Age of the
weather report
Forecast Map
2. Highlight the field to the right of Forecast, and press ENTER
to show a list of forecast options.
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USING XM WX WEATHER > USING THE WEATHER TAB
3. Highlight the forecast you want to view—Current, 12 Hour,
24 Hour, 36 Hour, or 48 Hour, and press ENTER. The
Map window on the Weather tab is updated with forecast
information for the time you selected.
The age of the weather report appears in the bottom-left corner of
the Map window on the Weather tab.
To pan the map:
Press and hold the MENU/Wx key, or press MENU, highlight
Show Map Pointer, and press ENTER. The panning arrow
appears so you can pan the map to view other map areas.
Weather Options
Use the options menu on the Weather tab to select weather options
for the Map window on the Weather tab.
Animate Weather (Stop Animation)—animates NEXRAD Radar
and Satellite Mosaic weather. When selected, a series of frames
appear, each showing a different time in the lower left corner of the
map. Up to four frames appear, beginning with the oldest to the most
current weather data.
Show Map Cursor—allows you to switch from pan mode to pointer
mode and show the map pointer in the map area so you can pan the
map.
Weather Legend—shows the color legend for Radar, Fronts,
County Warnings, and Other features. Press right or left on the
ROCKER to view each weather legend.
To select weather options:
1. Highlight the Weather tab on the Main Menu
2. Press MENU.
Declutter On (Off)—allows you to toggle unwanted weather items
on or off on the Map window.
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Weather Legend
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USING XM WX WEATHER > USING THE WEATHER TAB
Viewing Additional XM Weather Information
Use the Information sub tab to view the radio identification number,
service level information, and list of weather products.
Age (in minutes) of weather data
Accessing GXM 30 Antenna Information
Use the Information sub to obtain version information about your
GXM 30 antenna.
To view information about your GXM 30 antenna:
1.
2.
3.
4.
Radio ID
Subscription
package
List of available
weather features
Highlight the XM tab on the Main Menu.
Select the Information sub tab.
Press MENU.
With Antenna Information highlighted, press ENTER. A
window appears showing the software version loaded to your
GXM 30 antenna.
Information Sub Tab
The Information sub tab contains the following information:
Radio ID—contains the eight-digit identification number of the
radio built into your GXM 30 antenna. You must provide this ID to
XM to start your XM Radio and XM WX Weather subscriptions.
Service Level—shows the name of the XM WX Weather
subscription plan you purchased.
5. Press ENTER to close the window.
Weather Products—shows a list of all weather features you can
access based on your subscription plan. Shows the age of weather
data in minutes.
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USING XM WX WEATHER > FINDING WEATHER INFORMATION
Finding Weather Information
You can use the Find Menu to access weather information for your
current location or from another location on the map. By selecting
the Weather Data option on the Find Menu, you can view the current
conditions, forecast information, sea surface conditions, and weather
bulletins. For more information about the Find Menu, see “Finding
an Item” beginning on page 17.
3. Highlight the Forecast tab to view the weather forecast for
your current location.
Forecast high
temperature
Chance of
precipitation
Forecast low
temperature
To find weather information for your current location:
1. From any page, press FIND.
2. Select Weather Data, and press ENTER. The Weather From
Current Location Page opens.
Weather Forecast
4. Highlight the Sea Surface tab to view sea surface
information.
Weather From Current Location
Sea Surface Information
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USING XM WX WEATHER > FINDING WEATHER INFORMATION
5. Highlight the Bulletin tab to view marine weather bulletins.
To find weather data for a different location:
1. Press MENU on the Weather From Current Location Page.
2. With Near Other highlighted, press ENTER.
Marine Weather Bulletins
You can highlight a weather bulletin, and press ENTER to view the
full text of the marine weather bulletin.
3. Move the map pointer to a different location, and press
ENTER. The Weather From (New Location) Page opens with
weather information for the selected location.
4. Press MENU, highlight Near Current Location, and then
press ENTER to return to the forecast for your current
location.
Marine Weather Bulletin
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SETTING UP AND USING SONAR > SHOWING SONAR ON THE MAP PAGE
SETTING UP AND USING SONAR
This section covers the additional sonar options for the
GPSMAP 376C when used in conjunction with a GSD 20 or
GSD 21 Sounder Module. Read the GSD 21 or GSD 20 Sounder
Module Installation Instructions to properly install the sounder
module. When you turn on your GPSMAP 376C, the sounder
module automatically turns on.
NOTE: You MUST have a transducer and a GSD 21 or GSD 20
installed and connected to your GPSMAP 376C to use the sonar
features.
The Sonar Page is added to the end of the page sequence when you
are in Marine Mode. To view the Sonar Page, press PAGE or QUIT
repeatedly until it appears.
Showing Sonar on the Map Page
You can change the layout of the Map Page to a split screen to show
the sonar on the Map Page. You must be in Marine Mode to use
sonar.
To show the Sonar Page on the Map Page:
1. Press and hold PAGE/MODE.
2. Highlight Marine, and press ENTER.
3. Press PAGE or QUIT to open the Map Page.
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4. Press MENU. Highlight Set Up Page Layout, and press
ENTER.
5. Highlight Map with Sonar, and press ENTER.
Map Page with Split Screen
To resize the Map Page sonar split screen:
1. After showing the Sonar and Map Pages together in the split
screen as described in the previous steps, press MENU.
2. Highlight Size Split, and press ENTER.
3. Use the ROCKER to move the vertical double-arrow right or
left.
4. Press ENTER.
5. To stop resizing the screen, press QUIT. You can also press
MENU, highlight Stop Resizing, and press ENTER to stop
resizing the screen and retain the previous split setting.
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SETTING UP AND USING SONAR > USING THE SONAR PAGE
Using the Sonar Page
The sonar returns show as red (strongest), then orange (strong),
yellow (medium), green (weaker), and blue (weakest). The Fish
Symbols option allows you to view the actual sonar data, a fish
symbol or a combination of both. When the unit is set to Dual, the
appearance of the fish symbols changes. Fish symbols from the
center of the beam (200 kHz) are solid (or narrow arches), but the
returns from the edges of the beam (50 kHz) are hollow (or wide
arches).
The middle of the page contains a right-to-left moving sonar image
of the water beneath your boat. Items appear as they pass under your
transducer. Those items on the right side of the screen are closer to
you than those on the left. Along the right side of the screen is an
adjustable scale that reflects the depth of the area being shown. The
top left corner shows the adjustment option, the depth, and the water
temperature.
The sonar display can also be set to show a split screen view of a
zoomed portion of the sonar, bottom lock (display scaled from the
bottom up), or a combination of these options. For example, you
can choose to show dual frequency at a 2X zoom (Dual 2X) on one
half and normal range dual frequency (Dual) on the other half. The
current display mode appears at the bottom of each sonar display.
When combined with a GSD 21 or GSD 20 Sounder Module, your
GPSMAP 376C becomes a powerful fishfinder/flasher with the
Sonar Page. If a GSD 21 or GSD 20 is attached, but the unit does
not detect a transducer, a “Sonar Turned Off” message appears
across the Sonar Page. The Sonar Page appears only if a GSD 21
or GSD 20 has ever been attached or when the unit is in Simulator
Mode.
Read the “Understanding Sonar” section beginning on page 112 for
more on information about sonar.
Sonar Page
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SETTING UP AND USING SONAR > USING THE SONAR PAGE
Adjusting the Sonar Page
Use the Adjustment Menu to access the settings and features most
commonly used on the Sonar Page. Ten main adjustment options
are available: Range, Zoom, View, Gain, Target Level, Whiteline,
Frequency, Depth Line, Noise Reject, and Scroll. The currently
selected option appears in the upper-left corner.
Sonar Adjustment Options
To select an adjustment option:
Use one of the following methods to select an adjustment option:
• Press the ROCKER right or left to scroll through the
adjustment options. When the adjustment option you want
appears, press ENTER.
• Press MENU, highlight Adjustments, and press ENTER.
Use the ROCKER to highlight the adjustment and press
ENTER.
After you select an adjustment option, press the ROCKER up or
down to change the setting.
You can also press MENU and highlight a shortcut setting to
quickly change to commonly used settings and values.
Press ENTER to accept the new setting (or press QUIT to cancel)
and return to the Sonar Page.
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Scroll—adjusts the rate that the sonar display scrolls from right to
left. If you are sitting still or the sonar display is moving too fast,
slow the scroll rate or pause the scrolling.
Range—sets the display depth range used for viewing. The unit can
be set to automatically track the bottom or set to a user-specified
depth range.
Zoom—allows you to select a display zoom scale or to split
the display. When a scale other than No Zoom is selected, the
Adjustment Menu shows a new selection labeled View or Span. The
Zoom function is divided into six levels:
• 2X Split—shows two reduced-size sonar pictures at the same
time. The right half of the display shows the complete sonar
picture at its original scale. The left half shows a portion of
the original picture at 1/2 depth scale.
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SETTING UP AND USING SONAR > USING THE SONAR PAGE
• 2X Zoom—shows the 2X zoomed picture on the full screen.
• 4X Split—shows two reduced pictures, the right at the
original depth scale and the left at 1/4 the original depth scale.
• 4X Zoom—shows the 4X zoomed picture on the full screen.
• Btm (Bottom) Split—shows two reduced pictures, the right
at the original depth scale and the left showing sonar returns
from the bottom up. All target depths read as a distance from
the bottom.
• Btm (Bottom) Lock—shows returns from the bottom up on
the full screen.
TIP: Quickly zoom in and out of the Sonar display by pressing
the In and Out keys. Turn off the zoom function by pressing the
Out key until the No Zoom setting appears.
View/Span—changes the viewing range of a zoomed display. If the
display is 2X or 4X split, only the zoomed portion on the left side of
the display is affected by the change. If the display is Bottom Split
or Bottom Lock, Span adjusts how far off the bottom the unit shows
data. This option is available when a Zoom scale other than No
Zoom is selected.
Gain—allows you to control the sensitivity of the unit’s receiver.
To see more detail, increase the receiver sensitivity by selecting a
higher gain. If there is too much detail select a lower gain.
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Target Level—adjusts colors used to show sonar information. A
Color Bar appears on the right side of the screen as you adjust this
setting. A higher percentage results in more strong-signaled colors
shown on the sonar display. A lower percentage results in more
weaker-signaled colors shown on the sonar display. This setting does
not increase or decrease the unit Gain.
Whiteline—controls how the unit shows information about the
bottom type (hard or soft). With Whiteline Off, the bottom return
shows as red. Set Whiteline at Normal or 1–100% to determine
bottom hardness. See page 114 for more information.
Frequency—allows you to choose a transducer frequency.
Frequency refers to the “pitch” of the sound that the transducer
sends and receives.
Depth Line—adds a horizontal depth line across the display that is
used to measure the depth of underwater objects. The depth of the
line appears in a box on the right side of the line. Press up or down
on the ROCKER to move the line on the sonar display.
Noise Reject—helps filter unwanted noise from the sonar display.
The Noise Reject can be turned Off, set to Normal (automatically
adjusts for optimum viewing) or to a fixed 1–100% setting. When
setting the Noise Reject, remember that a higher noise rejection
setting is less likely to show fish or structures.
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SETTING UP AND USING SONAR > USING THE SONAR PAGE
Resizing the Split Screen
You can adjust the way the split screen appears. This option is only
available when a zoom scale other than No Zoom is selected.
To resize the Sonar Page split screen:
1. From the Sonar Page split screen, press MENU.
2. Highlight Size Split, and press ENTER.
3. Move the horizontal double-arrow left or right using the
ROCKER until the vertical width line shows, then press
ENTER.
4. If you want to cancel this operation, press QUIT or press
MENU, highlight Stop Resizing, and press ENTER.
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Using the Pointer on the Sonar Page
You can show the pointer (arrow) to reference sonar items and
mark underwater waypoints. This makes it easier to find and use
an object such as a stump for a future fishing location. When using
this feature, the Sonar Page pauses. The depth continues to update
while the display is paused, but the unit does not show any new
sonar data until the Sonar Page resumes scrolling. You might see a
discontinuity from where the sonar information stops and where it
starts again.
To mark an underwater waypoint:
1. From the Sonar Page, press MENU, highlight Show Pointer,
and press ENTER.
2. Use the ROCKER to move the pointer to the location you
want to mark. Press ENTER. The New Map Waypoint Page
opens.
3. To change the name, symbol or depth, highlight the
appropriate field and press ENTER. Make your changes, and
press ENTER.
4. When you are done making changes, highlight OK, and
press ENTER.
5. To return to the standard Sonar Page, press QUIT; or press
MENU, highlight Hide Pointer, and press ENTER.
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SETTING UP AND USING SONAR > SETTING UP SONAR
Setting Up Sonar
Use the Sonar tab on the Main Menu to set up the Sonar Page.
To access the Sonar Tab:
Highlight the Sonar tab on the Main Menu.
Depth Number—select the effeciency of the digital depth update
rate. Fast Update updates quicker and is recommended for lownoise water deeper than 50 feet. Auto is best for shallow water or
high-noise areas, has a slower screen update, and is best used if you
travel a wide variety of depths.
If the unit is unable to track the bottom for any reason, the digits in
the depth window flash on and off to alert you that the unit is not
tracking the bottom.
Main Menu—Sonar Tab
Fish Symbols—select how the Sonar Page shows underwater targets
and background information. Select Off to show all of the available
information about the underwater environment. Select a fish symbol,
to show only the information related to that symbol.
Water Type—select the proper water type you are boating in.
Because sound waves travel through fresh and salt water at different
rates, it is necessary to select the Water Type to ensure accurate
readings on the unit.
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Map Split Sonar Detail—select how much detail appears on the
Map Page with the sonar shown. Full Range shows data using the
Range setting of the Sonar Page, regardless of Zoom or Bottom
Lock. Maximum Detail shows any Zoom or Bottom Lock data
from the Sonar Page.
Keel Offset—enter the surface reading for the depth of a keel. This
makes it possible to measure depth from the bottom of your keel
instead of from the transducer’s location. Enter a positive number
to offset for a keel. It is also possible to enter a negative number to
compensate for a large vessel that can draw several feet of water.
The Keel Offset is reflected in the depth reading.
Transducer—select the type of transducer that you are using. If you
are using a speed-capable transducer/sensor, select Temp, Spd.
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SETTING UP AND USING SONAR > SETTING UP SONAR
Calibrating the Water Speed
If you select Temp, Spd for the Transducer option on the Setup sub
tab, you must calibrate the water speed to ensure the Water Speed
shown on your unit is accurate. The calibration should take place in
water having little or no current.
The unit automatically uses the GPS ground speed, if it is available,
for comparison on the calibration. If a GPS ground speed is not
available, use either your boat’s speedometer reading (not always
accurate) or a stopwatch to determine your speed over a certain
distance. To find out your speed, divide the distance by the time.
To calibrate the water speed:
1. On the Setup sub tab, highlight the Calibrate Water Speed
button, and press ENTER.
2. Bring the boat to a cruising speed. Both the top ground and
uncalibrated water speeds are shown at the bottom of the
calibration window. Note your top speed, then stop the boat,
and press ENTER.
NOTE: You must have a transducer with a built-in speed sensor
or seperate compatible speed sensor.
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Calibrating the Water Speed
3. By default, the top ground speed is automatically shown. If
a ground speed is not available, the top uncalibrated water
speed is used instead. If the new speed is correct, highlight
OK, and press ENTER.
If you want to manually enter a calibration, press ENTER
while the speed is highlighted, enter a new speed, and press
ENTER again.
If the boat is not moving fast enough or the speed sensor is not
outputting a speed, “Boat Is Not Moving Fast Enough To Calibrate”
appears at the bottom of the screen. Check that the speed sensor
wheel is moving or safely increase boat speed. If there is a problem
with the speed sensor or if a speed senor is not installed, “Water
Speed Sensor Is Not Working” appears at the bottom of the screen.
Check connections of speed sensor cables.
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SETTING UP AND USING SONAR > SETTING UP SONAR
Setting Up the Sonar Display
You can set up how the sonar information appears on-screen using
the Display sub tab.
To access the Display sub tab:
1. Highlight the Sonar tab on the Main Menu.
2. Highlight the Display sub tab.
Flasher—select On to show a graphic Flasher representation on
the far right side of the sonar display. This graphic Flasher shows
structure and bottom returns much the same as a true Flasher. You
might find this feature useful when using Fish Symbols.
Temperature Graph—select On to show a temperature graph along
the bottom of the Sonar Page.
Background Color—select the color for the Sonar Page and the
sonar on the Map Split Page.
Graphic Flasher
White
background
Color bar
Temperature
graph
Depth Scale
in corners
Display Sub Tab
Scale—select how and where you want the depth scale to appear.
Color Bar—select On to show a gradient scale of the current Target
Level setting on the Sonar Setup tab.
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Sonar Page with the Sonar Display settings changed
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SETTING UP AND USING SONAR > SETTING UP SONAR
Viewing the Temperature
Use the Temperature sub tab to view a graph of water temperature
changes over a period of time. The graph reads from right to left
so that the most recent temperature measured appears on the far
right side of the graph. The dotted lines within the graph indicate
intervals in the temperature scale and the duration of time. To view
temperature information, you must select Temp as the Transducer
type on the Setup sub tab.
NOTE: You must be receiving proper sonar data from another
device, such as a Garmin GSD 20 or GSD 21 Sounder Module,
to view temperature information.
To access the Temperature sub tab:
1. Highlight the Sonar tab on the Main Menu.
2. Select the Temperature sub tab.
Changing the Temperature Display
The graph adjusts and shows the temperature changes according to
the Temperature Scale and Time Duration settings.
Temperature Scale—select a degree span from the list. Select Auto
to have the unit automatically determine the best range, or select a
span of 2, 4, 6, 8, or 10 degrees.
Time Duration—set how fast or slow the temperature log scrolls; a
shorter time duration means a faster temperature log scroll. Select a
duration from 1 minute to 2.5 hours.
Resetting the Temperature Graph
To reset the scale range for the temperature graph, press MENU,
highlight Reset Auto Scale, and press ENTER. This is useful
when the scale spans a large range due to extreme temperature
changes. You can reset the scale only when you select Auto for the
Temperature Scale.
To restore the temperature graph to defaults, press MENU, highlight
Restore Default, and press ENTER.
Temperature Sub Tab
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SETTING UP AND USING SONAR > UNDERSTANDING SONAR
Understanding Sonar
The transducer mounted on your vessel transmits sound waves
toward the bottom of the water in a cone-shaped pattern. When
a transmitted sound wave strikes an underwater object—such as
the bottom, a structure, or a fish—sound is reflected back to the
transducer. The transducer collects the reflected sound waves and
sends the data to the GSD 21 or GSD 20 Sounder Module and then
to the GPSMAP 376C to be processed and shown. The underwater
data is shown on the Sonar display in the order that it is returned;
first returned is the first on the display.
Understanding the Sonar Display
One of the first things to understand about sonar is that the
transducer sends a beam down to the bottom of the water, much like
the beam of a flashlight. The beam starts small near your vessel and
expands as it gets to the bottom. See “Transducer Coverage” for
more detailed information.
The Sonar Page does not show a three-dimensional representation of
the underwater environment; the display is in two-dimensions, much
like if you took a picture of an aquarium. Only the depth of the item
in the water appears. The Sonar display does not show you where an
item is located horizontally in the water, as shown in the drawings
below. The fish is not directly above the tree in reality, but it might
look like it is on the Sonar Page.
Fish
Sonar Page
Generally speaking, if the only thing between the transducer and
the bottom is water, the first strong return comes from the bottom
directly below the transducer and sets the bottom level. Weaker
secondary returns provide the detailed data. Stronger returns show in
darker colors, with red being the strongest return.
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1'
10'
Tree
Tree
20'
Aerial View of the Water
Sonar Display
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SETTING UP AND USING SONAR > UNDERSTANDING SONAR
Transducer Coverage
The area covered by the transmitted sound waves is determined
by the cone angle of the transducer and the water depth. The wide
Coverage
cone angles (40°) associated with low frequencies (50 kHz) provide diameter
a large coverage area for finding fish within a coverage width that
is approximately 2/3 of the water depth. However, this also means
that wide cone angles produce less bottom detail and resolution. As
shown in the drawing on the near right, the 40° cone angle produces
a coverage area of approximately a 20-foot diameter circle at a
30-foot depth.
The narrow cone angles (10°) associated with high frequencies
(200 kHz) provide better bottom resolution and crisper detail, but
cannot show a large coverage area for finding fish. The 10° cone
angle provides a coverage width that is approximately 2/10 of the
water depth. As shown in the drawing on the far right, the 10° cone
angle produces a coverage area of approximately a 6-foot diameter
circle at a 30-foot depth.
Depth
40° Cone Angle (50 kHz)
Coverage
diameter
Depth
10° Cone Angle (200 kHz)
Dual frequency mode combines both frequencies to get the best
coverage area and contour/depth readings.
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SETTING UP AND USING SONAR > UNDERSTANDING SONAR
Whiteline
The GSD 20 or GSD 21 can help you determine whether the bottom
is hard or soft. When the sonar sound waves are reflected back
by the bottom, a hard bottom returns a stronger signal than a soft
bottom. A thin whiteline indicates a softer bottom, while a thick
whiteline indicates a harder bottom. Normally, a red line is used
to show the point where water meets the bottom. This line follows
the bottom contour, along with any significant objects lying on the
bottom. The unit uses the whiteline function to make the bottom
layer information easier to distinguish.
Thermoclines
A rough definition of a thermocline is a break in water where
the water temperature changes faster than the water above it.
Thermoclines are shown as the weakest colors.
One of the unique features offered by Garmin is See-Thru®
technology, which allows the GPSMAP 376C to hear both weak and
strong signals simultaneously so it can identify fish returns under
the toughest conditions, such as suspended in thermoclines or even
hiding near structures. See-Thru technology allows the GSD 20 or
GSD 21 to “see” through thermoclines and helps locate fish where
they live.
Thick
Whiteline: Hard
bottom
Whiteline On
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Whiteline Off
Thermocline
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APPENDIX > SPECIFICATIONS
APPENDIX
Specifications
Physical Specifications
Size:
Weight:
Display:
Case:
Temp. Range:
Power
Battery:
Battery Life:
Source:
Fuse:
5.7" W x 3.2" H x 1.9" D
(14.5 x 8.1 x 4.8 cm)
14.0 oz (0.40 kg)
3.75" diagonal (9.5 cm) Transflective, 256-color
display with backlighting (480 x 320 pixels)
Fully gasketed, high-impact plastic alloy,
waterproof to IEC 60529 IPX7
5°F to 140°F (-15°C to 60°C)
Receiver:
Differential-ready 12 parallel channel receiver
Acquisition Times: Approx. 15 seconds (warm start)
Approx. 45 seconds (cold start)
Approx. 5 minutes (First Time/AutoLocate™)
Update Rate:
1/second, continuous
Accuracy
GPS:
DGPS (USCG):
DGPS (WAAS):
Velocity:
Dynamics:
15 meters (49 feet) RMS 95% typical
3–5 meters (10–16 ft), 95% typical
< 3 meters (10 ft) 95% typical with DGPS
corrections
0.1 knot RMS steady state
6 g's
Rechargeable lithium-ion
4 to 15 hours depending on the backlight setting
and if you are using XM WX Weather or XM
Radio the entire time.
11–35 VDC
3AG - 1.5 Amp
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Performance
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APPENDIX > OPTIONAL ACCESSORIES
Optional Accessories
In addition to the standard accessories included with your
GPSMAP 376C, several optional accessories are available to
enhance the operation of the GPSMAP 376C.
To obtain replacement parts and optional accessories, contact
your Garmin dealer, Garmin Product Support in the USA at
800/800.1020, or Garmin Europe at 44/0870.8501241.
WARNING: Garmin accessories have been designed and
specifically tested for use with Garmin products. Accessories
offered by other manufacturers have not been tested or approved
for use with Garmin products. Use of such accessories could
cause damage to the GPSMAP 376C and void the warranty.
Auto Navigation Kit: Provides the parts and map data to use the
GPSMAP 376C in an automobile.
GA 29, GA 29F, and GA 26C Antennas: Garmin remote antennas.
Non-Skid Friction Mount: Portable vehicle mount, no installation required.
Permanent and Temporary Adhesive Disks: Adhesive disks for using the unit
in a vehicle.
PC Interface Cable: Connects the unit to a serial port on your computer.
Power/Data Cable: Allows you to connect the unit to the electrical system
using bare wires.
Programmable Data Cards: Blank data cards available in 8 MB, 16 MB,
32 MB, 64 MB, 128 MB,256 MB and 512MB sizes. Download detailed map
data from MapSource CD-ROMs to a data card, either directly through your
GPSMAP 376C using the PC USB cable, the optional PC Interface cable, or
with the optional USB Data Card Programmer.
USB Data Card Programmer: Programs blank data cards at high speed
through a computer.
Carrying Case: Protects the GPSMAP 376C when not in use; has storage
space for data cards.
Protective Cover: Snaps on the front of the unit to protect the screen from
damage.
MapSource Software CD-ROMs and DVDs: Offers several detailed mapping
options that are compatible with the GPSMAP 376C, including City Navigator,
US Inland Lakes, BlueChart, Fishing Hot Spots, and Topo.
Pre-Programmed Data Cards: Data cards preprogrammed with either Garmin
BlueChart, BlueChart g2 or Fishing Hot Spots map data.
External Speaker with 12/24-Volt Adapter Cable: Allows the unit to operate
from the vehicle’s power system through the cigarette lighter adapter. Provides
a speaker for vocal prompts.
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APPENDIX > INSTALLATION INFORMATION
Installation Information
This section of the Appendix provides information on connecting the
GPSMAP 376C to auxiliary devices and removing the antenna.
Connecting the Power/Data Cable
The power/data cable connects the GPSMAP 376C to an
11–35 VDC system and provides interface capabilities for
connecting external devices. The color code in the diagram below
and to the right indicates the appropriate harness connections.
Replacement fuse is a 3AG - 1.5 Amp fuse.
Ground
Black
Alarm
White
Voice (+)
Brown
Data In
Yellow
Voice (-)
Orange
Data Out
Blue
Power
Red
Power/Data Connector on the Cable
Red: Power
Power
Red
Power/Data Connector on the GPSMAP 376C Unit
Black:
Ground
(-)
Autopilot/
NMEA Device
Blue:
Data Out
Yellow:
Data In
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(+)
11–35 VDC
RXD +
RXD Switch
GPSMAP 376C Owner’s Manual
Ground
Black
Alarm
White
Voice (+)
Brown
Data In
Yellow
Voice (-)
Orange
Data Out
Blue
Closed - On,
Open - Off
White/Blue
Orange
(+)
GSD 20 or 21
(-) Sounder
White/Brown
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APPENDIX > INSTALLATION INFORMATION
Connecting the GXM 30 Antenna
Connect the GXM 30 antenna to the GPSMAP 376C to access XM
WX satellite weather and XM Radio. For more information about
the GXM 30 antenna, see the GXM 30 Owner’s Manual.
NOTE: You must subscribe to XM Radio and/or XM WX
Satellite Weather to use the XM Radio and/or XM Weather
features on your GPSMAP 376C.
To connect the GXM 30 antenna:
1. Position the antenna where it has a clear view of the sky.
This can be on the outside of the vehicle or behind the
windscreen.
2. Plug the GXM 30 cable into the USB port on the back of the
unit, as shown in the following illustrations.
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GXM 30 Antenna Plugged In
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APPENDIX > INSTALLATION INFORMATION
Connecting Your GPSMAP 376C to a Computer
You can connect your GPSMAP 376C to your computer using the
supplied USB cable to connect to a USB data port or the optional PC
Interface cable to connect to a DB-9 serial communications port.
NOTE: Fully install the supplied MapSource program, Trip &
Waypoint Manager, on your computer before connecting the
USB cable to the computer.
USB connector/
GXM 30
Antenna
connector under
weather cap
USB Data Port on Your PC
Serial Communications Port
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To connect your GPS to your computer:
1. Connect the small end of your cable to the lower connector
on the back of the GPSMAP 376C, shown in the illustration
to the left.
2. When using the supplied USB Data Cable, connect the larger
end of the cable to an available USB data port (see the
illustration on the left).
When using a PC Interface Cable, connect the larger end of
the cable to a serial communications port on your computer
(see illustration on the bottom left).
Information About USB Drivers
The USB drivers should have been automatically installed when you
installed the MapSource program that came with your GPSMAP
376C. When you initially connect the GPSMAP 376C to a USB
port, your computer might prompt you to locate the destination of
the drivers for the device. You only need to install the drivers once.
After the drivers are installed, your computer will always detect your
GPSMAP 376C when it is connected. USB drivers might be updated
periodically. You can find these updates at www.garmin.com.
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APPENDIX > INSTALLATION INFORMATION
Using xImage for Customized Waypoint Icons
Use xImage to exchange images between your computer and your
GPSMAP 376C. You can download and save screenshots of any
screen shown on your unit. xImage also allows you to download
customizable splash screens and waypoint symbols from compatible
GPS units, customize them (if you have an image editing program
on your computer), and send them back to your GPS unit.
You can download xImage from the Garmin Web site at
www.garmin.com/ximage/. See the Help file for complete
instructions about using xImage.
Installing and Removing Data Cards
The GPSMAP 376C uses an optional Garmin data card to show
digital charts and maps. Install the data card in the card slot located
on the bottom of the unit. Install or remove the data card at any time,
whether the unit is on or off.
You can load a variety of information on your data card, such as
MapSource detailed maps. You can also buy pre-programmed cards
to use with your GPSMAP 376C.
Data cards are not waterproof, should not be exposed to moisture or
excessive static charges, and should be stored in the case supplied
with the card.
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To install a data card:
1. Insert the card into the slot on the bottom of the unit. Be sure
the label is facing the front of the unit.
2. Firmly push the card into the unit. It is not necessary to force
the card. The handle is still exposed when it is properly
inserted.
3. If the unit is on, a confirmation tone sounds. The first time
you insert a programmed data card, the unit takes a few
seconds to read the card. Once the data card has been
properly installed and accepted, a summary screen noting
the card details appears. Press ENTER to acknowledge.
If you insert a data card and get a card format not recognized
message, try removing the card and reinserting it. If the card is still
not recognized, contact Garmin or your Garmin dealer.
To remove a data card:
1. Grasp the card handle. The handle expands for easy
removal.
2. Pull the card out of the card slot on the bottom of the unit.
3. If the unit is on, a confirmation tone sounds when the data
card has been removed.
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APPENDIX > INSTALLATION INFORMATION
Interfacing
The following formats are supported for connection of external
devices: GARMIN proprietary Differential GPS (DGPS), NMEA
0180, 0182, 0183 (versions 1.5, 2.0, 2.3, 3.01), ASCII Text Output,
and RTCM SC-104 input (version 2.0).
The following are the Approved Sentences for NMEA 0183,
version 3.01 output: GPRMC, GPGGA, GPGSA, GPGSV, GPGLL,
GPBOD, GPRTE, and GPWPL. The following are the Proprietary
Sentences for NMEA 0183, version 3.01 output: PGRME, PGRMZ,
and PGRMM.
To remove the GPS antenna:
1. Remove the external power cable from the connector on the
back of the GPSMAP 376C.
2. Rotate the antenna to approximately a seven o’clock
position. The alignment notches in the casing must line up
with the notches on the antenna.
3. Pull the antenna away from the GPSMAP 376C unit.
The GPSMAP 376C also includes NMEA input with support for
the BWC, DBT, DPT, DSC, DSE, MTW, VHW, VTG, and XTE
sentences.
Garmin’s proprietary communication protocol is available from the
Web site at www.garmin.com.
Removing the GPS Antenna
You can remove the GPS antenna to use an external antenna. After
the antenna is removed, the BNC connector is exposed and ready
for use with an external antenna. For information on connecting
an external antenna to the GPSMAP 376C, refer to the installation
instructions that came with the antenna.
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Removing the GPS Antenna
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APPENDIX > SATELLITE INFORMATION
Satellite Information
90°
Date, Time, and Current Location
Center dot - 90°
above the horizon
Inner ring- 45°
above the horizon
Outer ring the horizon
45°
Satellite Sky View
Satellite Location
The location of each available satellite is shown over two location rings
on the Satellite Information Page. The outer ring represents the horizon,
the inner ring represents 45° above the horizon, and the center represents
directly overhead. When the unit is using a satellite for navigation, the
satellite number is highlighted on the location rings. The unit can show
satellite location with North or your current track at the top of the screen.
Satellite Strength Indicator Bars
The Satellite Strength Indicator Bars show the strength of the signal being
received and the status of the signal. The bars are either shaded or filled. A
hollow gray bar means the unit is in the process of storing orbital data it is
receiving from the satellite signal. When the bar turns solid green, the unit
is using the satellite signal for navigation. A “D” in or above the bar means
differential corrections (WAAS or DGPS) are being applied to that satellite.
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The unit gets date and time information from the satellite’s on-board atomic
clock. When the unit has achieved a 2-D or 3-D GPS location, the current
location is shown in the location format you have selected.
What is Differential GPS (DGPS)?
The United States and Canadian governments (among others) have
set up Differential GPS (DGPS) stations to transmit correction
signals. They are operational in coastal areas and on many navigable
river systems.
The DGPS system is available for use without a fee, but you do need
additional equipment to receive DGPS signals; a beacon receiver
compatible with the RTCM format sentences supported by your
Garmin GPS is needed to use DGPS.
Refer to the United States Coast Guard’s Web site (www.navcen.
uscg.gov/) for locations and status of the differential stations.
Differential Field
Differential receiver status is indicated in the bottom left field of the
GPS tab and will show one of the following conditions:
• None—no optional beacon receiver is attached or enabled in
the Interface sub tab on the Main Menu—Setup tab or WAAS
is disabled.
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APPENDIX > SATELLITE INFORMATION
• Searching for WAAS—WAAS is enabled and the receiver is
searching for WAAS signal.
• Using WAAS—WAAS capability is enabled and the unit is
receiving WAAS corrections.
• Check Beacon Wiring—the DGPS setting is enabled in the
Interface sub tab on the Main Menu—Setup tab but no DGPS
device is detected.
• No Beacon Signal—DGPS receiver is attached, but not
transmitting RTCM data to GPS.
• Tuning Beacon—the receiver is tuning manually to a DGPS
frequency.
• Using Differential—the unit is receiving DGPS corrections.
• Scanning for Beacon—the DGPS receiver is scanning for an
available frequency.
What is WAAS?
The Wide Area Augmentation System (WAAS) is an FAA-funded
project to improve the overall integrity of the GPS signal and
increase position accuracy for users in North America.
The system is made up of satellites and approximately 25 ground
reference stations positioned across the United States that monitor
GPS satellite data. Two master stations, located on either coast,
collect data from the reference stations and create a GPS data
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correction message. According to the FAA’s Web site, testing in
September 2002 of WAAS confirmed an accuracy performance of 1–
2 meters horizontal and 2–3 meters vertical throughout the majority
of the continental United States and portions of Alaska.
WAAS is just one service provider that adheres to the MOPS
(Minimum Operational Performance Standard) for global Satellite
Based Augmentation Systems (SBAS). Eventually, there will
be several services of worldwide geostationary communication
satellites and ground reference stations.
All SBAS systems use the same receiver frequency; therefore, any
operational SBAS system should be capable of providing your GPS
unit with increased accuracy at any location in the world.
Currently, enabling WAAS on your Garmin GPSMAP 376C in
regions that are not supported by ground stations might not improve
accuracy, even when receiving signals from an SBAS satellite. In
fact it can degrade the accuracy to less than that provided by GPS
satellites alone. For this reason, when you enable WAAS on your
Garmin GPS receiver, the receiver automatically uses the method
that achieves the best accuracy. To enable WAAS, see page 6.
For more information, go to http://gps.faa.gov/Programs/WAAS/
waas.htm.
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APPENDIX > LORAN TD SETUP
LORAN TD Setup
LORAN C is a radio navigation aid operated and maintained in the
United States by the United States Coast Guard. The name LORAN
is an acronym for “LOng RAnge Navigation.” The LORAN
system covers the entire United States and the United States
Coastal Confluence Zone. From the perspective of a mariner, the
system is used for ocean and coastal navigation. It can be used as a
supplemental system for harbor and harbor approach navigation, and
it is used for inland navigation by recreational vehicles.
LORAN TD Feature
The LORAN TD (Time Delay) feature eases the transition from
using LORAN to using GPS. The GPSMAP unit automatically
converts GPS coordinates to LORAN TDs for those who have a
collection of LORAN fixes for favorite fishing spots and other
waypoints recorded as TDs. You can show your location as a TD
or enter waypoints as TDs. The accuracy to be expected from this
conversion is approximately thirty (30) meters. When the unit is
placed in the LORAN TD format mode, it simulates the operation
of a LORAN receiver. Position coordinates might be shown as TDs,
and all navigation functions can be used as if the unit was actually
receiving LORAN signals.
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Using the LORAN TD Format
When creating new waypoints using LORAN TD coordinates, you
must set the correct LORAN chain number and secondary stations in
the Setup TD field before storing the waypoint. After the waypoint
is stored in unit memory, it always reference the LORAN chain
number and secondary stations currently selected in the Setup TD
field. If you enter a different LORAN chain number or change
the secondary stations or offsets in the Setup TD field, the active
waypoint information will reflect those changes. Since the GPSMAP
376C does not rely on the LORAN signal for navigation, it can
reference a different GRI chain and/or secondary stations and still
navigate to the location stored in memory.
The LORAN Location Format field is located on the System
Tab—Location sub tab on the Main Menu. The LORAN TD Setup
window contains the fields to select the Loran GRI-Chain Number,
Primary and Secondary Stations, and TD Offsets.
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APPENDIX > LORAN TD SETUP
To set up Loran TD from the Main Menu:
1. Highlight the Setup tab on the Main Menu, and then highlight
the Location sub tab.
2. Highlight the Location Format field, and press ENTER.
LORAN TD Setup
6. When finished, highlight the Save button, and press ENTER.
Location Sub Tab
3. Highlight Loran TD, and press ENTER.
4. Highlight the Setup button located on the right side of the
Location Format field, and press ENTER. The Loran TD
Setup window opens.
5. To change the settings of any of the five fields, highlight
the field, press ENTER, select a setting, and press ENTER
again.
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If the active GRI Chain, secondary stations, or offsets were changed
since the waypoint was created, the waypoint references the active
GRI chain and secondary stations and adjust the TD coordinates
accordingly. Remember that the GPS is not relying on the LORAN
signal for navigation and actually converts the TD coordinate to a
useful latitude and longitude coordinate before storing the waypoint
to memory or using it for navigation. Because of this, the unit can
navigate to a TD coordinate anywhere in the world.
You must know your GRI chain number and secondary stations
to create a LORAN TD position. For more information, read our
LORAN TD Position Format Handbook, available at the Garmin
Web site at www.garmin.com/support/userManual.html.
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APPENDIX > MAP DATUMS AND LOCATION FORMATS
Map Datums and Location Formats
Map Datums are based on a mathematical model of the Earth.
What Are a Map Datums?
A datum is a mathematical model of the Earth that approximates
the shape of the Earth and enables calculations to be carried out in a
consistent and accurate manner. The datum is physically represented
by a framework of ground monuments whose positions have been
accurately measured and calculated on this reference surface. Lines
of latitude and longitude on a map or chart are referenced to a
specific map datum. Every chart has a map datum reference, and you
can set the GPSMAP 376C to match most of those commonly used.
What is a Location Format?
Your current location can be viewed on the GPS in the form of
coordinates. Because different maps and charts use different
location formats, Garmin GPS units allow you to choose the correct
coordinate system for the type of map you are using. The most
common format is latitude and longitude, which is used by all
Garmin units.
You can choose to change the location format to use with other
coordinate systems in Location field of the Setup tab—Location
sub tab. UTM/UPS (Universal Transverse Mercator/Universal Polar
Stereographic) are easy-to-use metric grids that are found on most
USGS topographic quadrangle maps. You can also select one of
several other grids, including a user-definable grid (for the advanced
user).
For more information about using paper maps with your Garmin
unit, refer to Using a Garmin GPS with Paper Land Maps, available
for download at www.garmin.com/manuals/UsingaGarminGPSwith
PaperLandMaps_Manual.pdf.
If you are navigating and comparing the GPS coordinates to a map,
chart, or other reference, set the map datum in the GPS unit to the
same datum as the map to ensure the most accurate navigation.
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APPENDIX > DIGITAL SELECTIVE CALLING (DSC)
Digital Selective Calling (DSC)
DSC uses marine VHF radio GPS technologies to transmit and
receive location information. DSC is used by mariners to assist them
in two major areas: Distress Calls and Position Reporting.
A non-emergency DSC Position Report allows mariners to exchange
and show their positions. When you receive a DSC position, you can
create a waypoint or to show the received position on an electronic
map.
An emergency DSC Distress Call allows a vessel in trouble
to transmit a substantial amount of information in a single
transmission, or “call,” without the need for voice communication.
When any nearby rescuer receives the DSC signal, an alarm sounds,
and they immediately receive the position of the caller.
The rescuer can then navigate (Go To) the caller’s position to
assist or forward the call on to the Coast Guard. When the Coast
Guard receives the call, they can immediately access the caller’s
information in their database while in transit to the caller’s location.
Any time a vessel receives a DSC call, the vessel can store that
location and quickly navigate to that position using a Go To. This
makes DSC a time-saver, especially in an emergency situation. To
use DSC, users must first register their VHF radio with the FCC and
receive a Maritime Mobile Service Identity (MMSI) number.
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What is a Maritime Mobile Service Identity (MMSI)
Number?
MMSI allows a VHF radio to act like a phone. The 9-digit MMSI
number acts like a phone number when used in a position report and
as a unique identifier to the Coast Guard when used in an emergency
distress call. To obtain a MMSI number, users must register their
VHF radio with the FCC (Form 605). Garmin does not supply this
number.
For more information regarding MMSI numbers, visit www.navcen.
uscg.gov/marcomms/gmdss/mmsi.htm.
How Are MMSI Assignments Obtained?
Non-commercial users, such as recreational users, who remain
in United States waters and only carry VHF, EPIRB (Emergency
Position Indicating Radio Beacons), and Radar are not required to
have a FCC ship station license. The FCC and Coast Guard have
authorized some second and third-party vendors to assign MMSI
numbers. This service is limited to registering recreational vessels
only. To receive information on how to obtain a recreational MMSI
number, contact www.uscg.mil/rescue21/links/mmsi.htm or http://
wireless.fcc.gov/marine/.
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APPENDIX > DIGITAL SELECTIVE CALLING (DSC)
Non-Federal Users in the United States
Commercial users, or those who travel outside the United States or
Canada, must apply for a ship station license or an amendment to a
ship station license. To find out if you require a Ship Station license,
contact http://wireless.fcc.gov/marine/fctsht14.html. If your vessel
requires licensing by the FCC, you will obtain a MMSI during the
application/licensing process when you file FCC Forms 159 and
605.
Federal Users in the United States
Federal users can obtain MMSI assignments from their agency
radio spectrum management office. These procedures are currently
under review by the National Telecommunications and Information
Administration (NTIA).
Users Outside the United States
Users can obtain an MMSI assignment from their telecommunications
authority or ship registry, often by obtaining or amending their ship
station license.
How Can Garmin Help You with DSC?
To receive distress calls or position reports, you must have a
DSC-equipped chartplotter as well as a VHF radio with DSC
support. During normal, non-emergency position report
communication, Channel 70 (156.525 MHz) has been set aside as
the VHF/DSC digital call channel.
For a distress call, press the MayDay button on the VHF radio. The
call transmits on an emergency channel with the MMSI number
attached to the call, if the receiver has DSC support. Any DSCequipped mariner (on sea or land) within range can receive the call.
When the GPSMAP 376C is connected to a VHF with DSC support,
the GPSMAP 376C shows a call list, log, and a directory. Basic
wiring is required for the Garmin unit and VHF radio to send and
receive NMEA data from each other.
Users In Canada
Industry Canada is responsible for assigning MMSI numbers to
commercial and recreational vessels. Information is available at the
following Web site: http://apollo.ic.gc.ca/english/mmsi.html.
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APPENDIX > MESSAGES
Messages
Distress Call—a DSC distress call was received. Take appropriate action.
Accuracy Alarm—the GPS accuracy has fallen outside of user-set value.
Dragging Anchor—the distance set in the Anchor Drag Alarm was exceeded.
Alarm Clock—the alarm clock has sounded.
Drift Alarm—the water depth has changed by the amount entered in the Drift
Alarm setup.
Antenna Shorted to Ground—the external GPS antenna has an electrical
connection problem. Contact Garmin Product Support.
Approaching Turn—you are nearing a turn in a route.
Arriving at Destination—you are nearing your destination.
Batteries Low—the battery needs to be recharged.
Basemap Failed Unit Needs Repair—there is an internal problem with your
unit. Contact Garmin Product Support to have the unit serviced.
Boat Is Not Moving Fast Enough to Calibrate—the boat is not moving fast
enough for the speed wheel to provide a valid speed.
Can’t Unlock Maps—no applicable unlock code for one or more maps was
found. All MapSource maps are not accessible.
Check XM Antenna—internal problem with your GXM 30 antenna. Contact
Garmin Product Support.
Database Error—internal problem with the unit. Contact your dealer or
Garmin Product Support to have the unit repaired.
Deep Water—-the water is deeper than the amount set in the Deep Water
Alarm.
Detail Maps Don’t Support Routing—maps that are loaded on the data card
do not support automatic route calculation.
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Fish Alarm—a fish was detected. The unit shows an icon and beeps (if
enabled). This alarm does not show a message banner.
Flash Flood Warning—a flash flood warning was issued for the area by the
National Weather Service.
Flood Warning—a flood warning was issued for the area by the National
Weather Service.
Lost Satellite Reception—the unit is unable to receive satellite signals.
Marine Warning—a marine warning was issued by the National Weather
Service.
Memory Full—unit memory is full, no further data can be saved.
Memory (RAM) Failed Unit Needs Repair—there is an internal problem
with your unit. Contact Garmin Product Support to have the unit serviced.
Memory (ROM) Failed Unit Needs Repair—there is an internal problem
with your unit. Contact Garmin Product Support to have the unit serviced.
Near Proximity Point—you have reached the distance set for a proximity
waypoint.
NMEA Depth is Below Transducer—no keel offset value has been received
from the external sonar device.
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APPENDIX > MESSAGES
No Diff GPS Location—RTCM is selected but the unit is not receiving DGPS
data.
Shallow Water—the water is shallower than the amount set in the Shallow
Water Alarm.
No Roads Near Destination—the destination for the road route you tried to
calculate is not near any roads. Select a different destination.
Sonar Failed Unit Needs Repair—there is an internal problem with the unit.
Contact Garmin Product Support to have the unit serviced.
No Roads Near Starting Point—the start location for the road route you tried
to calculate is not near any roads. Select a different start location.
Sunrise, Switching to Day Mode—the unit is switching to Day Mode.
No DGPS Position—no differential connection data is available, or not enough
data is available to calculate a DGPS position.
Thunderstorm Warning—a severe thunderstorm warning was issued for the
area by the National Weather Service.
No Tide Stations for that Area—no tide stations within 100 miles of the area.
Sunset, Switching to Night Mode—the unit is switching to Night Mode
No XM Signal—the GXM 30 antenna is not receiving an XM signal.
Tornado Warning—a tornado warning was issued for the area by the National
Weather Service.
None Found—no data matched the search criteria.
Track Already Exists—a saved track with the same name already exists.
Off Course—you are off course by the distance set in the Off Course Alarm.
Track Log Full—the track log is full and track recording was turned off.
To record more track points, you need to clear the track log and turn track
recording on.
Proximity Memory Full—no additional proximity waypoints can be saved.
Proximity Radius Overlaps—the radius of two proximity waypoints overlap.
Route Already Exists—you have entered a route name that already exists.
Route Calculation Error—no route can be calculated.
Track Memory Full—no more track data can be stored. Delete the old track
data to store the new data.
Route Memory Full—no additional routes can be saved.
Track Truncated—a complete uploaded track will not fit in memory. The
oldest track log points have been deleted.
Route Truncated—uploaded route from another device has more than 300
waypoints.
Transducer Disconnected, Sonar Turned Off—the unit has no transducer
attached, has a bad cable/transducer, or has a disconnected transducer cable.
Route Waypoint Memory Full—no additional route waypoints can be saved.
Transfer Complete—data transfer was completed.
Saving XM Program Information—an XM Radio channel lineup change has
occurred and the unit is saving the channel lineup to memory.
USB Connected—the USB cable was recently plugged in.
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APPENDIX > DATA FIELD OPTIONS
User Timer Expired—the Timer Alarm value has counted down to zero.
Water Speed Sensor is Not Working—the speed sensor is not detected. Check
the connections.
Water Temperature Alarm—sonar has reported a temperature above, below,
inside, or outside the specified value(s).
Waypoint Already Exists—a waypoint with the same name already exists.
Waypoint Memory Full—the unit has stored the maximum number of
waypoints.
XM Connected—the GXM 30 antenna was recently plugged in.
Data Field Options
The following list provides a brief description of each data field
option. Some of these options are supported only by devices
interfaced to your GPSMAP 376C.
Accuracy—the current accuracy of your GPS determined location.
Battery Timer—the time remaining on the battery before it is fully discharged.
Bearing—the compass direction from your current location to a destination.
Course—the desired path of travel from your starting location to a destination.
Course to Steer—the recommended direction to steer in order to reduce crosstrack error and return to the course line. Shown as Steer.
Cross Track—the distance you are off a desired course in either direction, left
or right.
Depth (Marine Only)—the depth of water from sonar NMEA input.
Dest Wpt—see Waypoint (Destination).
Distance (Destination)—the entire distance of a route, from beginning to end.
Distance (Next)—the distance to the next point on a route.
ETA (Destination)—Estimated Time of Arrival. The estimated time you will
reach your destination.
ETA (Next)—Estimated Time of Arrival. The estimated time you will reach the
next point on your route.
ETE (Destination)—Estimated Time Enroute. The estimated time required to
reach your destination.
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APPENDIX > DATA FIELD OPTIONS
ETE (Next)—Estimated Time Enroute. The estimated time required to reach
the next point on your route.
Elevation—the altitude (height) above or below mean sea level (MSL).
GPS Status—the current status of the GPS receiver, such as “3D GPS.”
Location (Lat/Lon)—your current location as latitude/longitude coordinates.
Location (Selected)—your current location described in the selected units of
measure (other than lat/lon).
Max Speed—the maximum speed the unit has moved since last reset.
Mov Avg Spd—see Trip Avg. Speed (Moving).
Move Timer—see Trip Timer (Moving)
Next Course—the course your route will take you on after you reach the next
waypoint.
Next Turn—the direction of the next turn on an active route.
Next Wpt—see Waypoint (Next).
Odometer—the total distance traveled since the odometer was reset.
Sunset—the time at which the sun sets on this day.
Time—the current time and date. It can be shown in 12-hour or 24-hour format
in local time or universal (UTC) time.
Track—the direction of movement relative to a ground position. Also referred
to as ground track.
Trip Avg. Speed (Moving)—the average speed while moving since the last
reset of the trip computer. Appears as Mov Avg Spd.
Trip Avg. Speed (Total)—the total average speed traveled since the last reset
of the trip computer. Appears as Ttl Avg Spd.
Trip Odometer—the total distance traveled since the trip computer was reset.
Trip Timer (Moving)—the length of time your vehicle has been in motion,
since the trip computer was reset. Appears as Move Timer.
Trip Timer (Total)—the total time the unit has been tracking since the trip
computer was reset.
Ttl Avg Spd—see Trip Avg. Speed (Total).
Pointer—the arrow indicating the direction to travel to the next point on a
route.
Turn—the distance between Bearing (BRG) and Track (TRG). L indicates you
should turn left. R indicates you should turn right. The degrees indicates the
difference angle and the number of degrees you should turn.
Power—the power indicator icon: Battery, External Power, or Charging.
User Timer—the timer you set on the Main Menu.
Speed—your current vehicle speed can be measured in miles per hour,
kilometers per hour, or knots.
Velocity Made Good—the rate of closure on a destination based on your
current speed and course of travel. Appears as VMG.
Steer—see Course to Steer.
Vertical Speed—the rate of climb or descent.
Sunrise—the time at which the sun rises on this day.
Voltage—the direct current voltage level of an external power source.
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APPENDIX > SOFTWARE LICENSE AGREEMENT
Water Speed (Marine Only)—the data acquired from measurement devices
interfaced to the unit is used to calculate your current speed over water.
Water Temperature (Marine Only)—the temperature of water at a measured
depth using measurement devices interfaced to the unit.
Waypoint (Destination)—the last point on a route, your destination. Appears
as Dest Wpt.
Waypoint (Next)—the next waypoint in your route. Appears as Next Wpt.
Weather–Dew Point—the dewpoint at the nearest weather reporting station.
Weather–Pressure—the surface pressure at the nearest weather reporting
station.
Weather–Relative Humidity—the relative humidity at the nearest weather
reporting station.
Weather–Temperature—the temperature at the nearest weather reporting
station.
Weather–Wind—the wind speed and direction at the nearest weather reporting
station.
XM Audio—the artist and song title of the XM audio channel currently
playing.
Software License Agreement
BY USING THE GPSMAP 376C, YOU AGREE TO BE BOUND BY THE
TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE
AGREEMENT. PLEASE READ THIS AGREEMENT CAREFULLY.
Garmin grants you a limited license to use the software embedded in this
device (the “Software”) in binary executable form in the normal operation of
the product. Title, ownership rights, and intellectual property rights in and to
the Software remain in Garmin.
You acknowledge that the Software is the property of Garmin and is protected
under the United States of America copyright laws and international copyright
treaties. You further acknowledge that the structure, organization, and code
of the Software are valuable trade secrets of Garmin and that the Software in
source code form remains a valuable trade secret of Garmin. You agree not
to decompile, disassemble, modify, reverse assemble, reverse engineer, or
reduce to human readable form the Software or any part thereof or create any
derivative works based on the Software. You agree not to export or re-export
the Software to any country in violation of the export control laws of the
United States of America.
XM Signal—the strength of the XM signal.
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APPENDIX > PRODUCT REGISTRATION AND FCC COMPLIANCE
Product Registration
Help us better support you by completing our online registration
today! Connect to our Web site at www.garmin.com/registration/.
Use this area to record the serial number (8-digit number located on
the back of the GPSMAP 376C) in case your GPSMAP 376C needs
service. Keep the original sales receipt, or a photocopy, in a safe
place.
Serial Number: ___ ___ ___ ___ ___ ___ ___ __
Contact Garmin
Contact Garmin if you have any questions while using your
GPSMAP 376C. In the USA contact Garmin Product Support by
phone: (913) 397-8200 or (800) 800-1020, Monday–Friday, 8 AM–5
PM Central Time; or go to www.garmin.com/support/, and click
Product Support.
In Europe, contact Garmin (Europe) Ltd. at
+44 (0) 870.8501241 (outside the UK) or
0808 2380000 (within the UK).
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FCC Compliance
This product has been tested and found to comply with Part 15 of the FCC
interference limits for Class B digital devices FOR HOME OR OFFICE
USE. These limits are designed to provide more reasonable protection against
harmful interference in a residential installation, and are more stringent than
“outdoor” requirements.
Operation of this device is subject to the following conditions: (1) this
device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired
operation.
This equipment generates, uses, and can radiate radio frequency energy and
may cause harmful interference to radio communications if not installed and
used in accordance with the instructions. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one of the following measures:
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
Connect the equipment into an outlet that is on a different circuit from
the GPS unit.
• Consult the dealer or an experienced radio/TV technician for help.
This product does not contain any user-serviceable parts. Repairs should
only be made by an authorized Garmin service center. Unauthorized repairs
or modifications could result in permanent damage to the equipment, and
void your warranty and your authority to operate this device under Part 15
regulations.
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APPENDIX > LIMITED WARRANTY
Limited Warranty
This Garmin product is warranted to be free from defects in materials or
workmanship for one year from the date of purchase. Within this period,
Garmin will, at its sole option, repair or replace any components that fail in
normal use. Such repairs or replacement will be made at no charge to the
customer for parts or labor, provided that the customer shall be responsible for
any transportation cost. This warranty does not cover failures due to abuse,
misuse, accident, or unauthorized alteration or repairs.
THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE
EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS,
IMPLIED, OR STATUTORY, INCLUDING ANY LIABILITY ARISING
UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS
WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY
VARY FROM STATE TO STATE.
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL,
SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, WHETHER
RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THIS
PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not
allow the exclusion of incidental or consequential damages, so the above
limitations may not apply to you.Garmin retains the exclusive right to repair
or replace the unit or software or offer a full refund of the purchase price
at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND
EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.
To obtain warranty service, contact your local Garmin authorized dealer or
call Garmin Product Support for shipping instructions and an RMA tracking
number. Securely pack the unit and a copy of the original sales receipt, which
is required as the proof of purchase for warranty repairs. Write the tracking
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number clearly on the outside of the package. Send the unit, freight charges
prepaid, to any Garmin warranty service station.
Online Auction Purchases: Products sold through online auctions are not
eligible for rebates or other special offers from Garmin. Online auction
confirmations are not accepted for warranty verification. To obtain warranty
service, an original or copy of the sales receipt from the original retailer is
required. Garmin will not replace missing components from any package
purchased through an online auction.
International Purchases: A separate warranty is provided by international
distributors for units purchased outside the United States. This warranty is
provided by the local in-country distributor and this distributor provides
local service for your unit. Distributor warranties are only valid in the area of
intended distribution. Units purchased in the United States or Canada must
be returned to the Garmin service center in the United Kingdom, the United
States, Canada, or Taiwan for service.
Garmin International, Inc.
Garmin (Europe) Ltd.
1200 East 151st Street,
Unit 5, The Quadrangle,
Olathe, Kansas 66062, USA
Abbey Park Industrial Estate,
Tel. (913) 397-8200 or
Romsey, SO51 9DL, UK
(800) 800-1020
Tel. +44 (0) 870.8501241 (outside the
UK) Fax (913) 397-8282
0808.2380000 (within the UK)
Fax +44 (0) 870.8501251
Garmin Corporation
No. 68, Jangshu 2nd Road,
Shijr, Taipei County, Taiwan
Tel. 886/2.2642.9199
Fax 886/2.2642.9099
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APPENDIX > WEATHER DATA WARRANTY
Weather Data Warranty
THE WEATHER DATA SOFTWARE PRODUCT IS PROVIDED “AS IS.”
ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE OR OF NON-INFRINGEMENT ARE HEREBY
EXCLUDED.
USER SAFETY
If you use XM Services it is your responsibility to exercise prudent discretion
and observe all safety measures required by law and your own common sense.
You assume the entire risk related to your use of the Services. XM and Garmin
assume no responsibility for accidents resulting from or associated with use
of the Services. Your Radio Service includes traffic and weather information,
and you acknowledge that such information is not for “safety for life”, but is
merely supplemental and advisory in nature, and therefore cannot be relied
upon as safety-critical in connection with any aircraft, sea craft or automobile
usage. This information is provided “as is” and XM and Garmin disclaim any
and all warranties, express and implied, with respect thereto or the transmission
or reception thereof. XM and Garmin further do not warrant the accuracy,
reliability, completeness or timeliness of the traffic and weather information
disclosed on the Radio Service. In no event will XM and Garmin, their data
suppliers, service providers, marketing/distribution, software or Internet partners
or hardware manufacturers be liable to you or to any third party for any direct,
indirect, incidental, consequential, special, exemplary or punitive damages or
lost profits resulting from use of or interruptions in the transmission or reception
of the Services.
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LIMITS ON OUR RESPONSIBILITY
a) DISCLAIMERS.
EXCEPT AS EXPRESSLY PROVIDED HEREIN, WE MAKE NO
WARRANTY OR REPRESENTATION, EITHER EXPRESS OR IMPLIED,
REGARDING THE RADIO SERVICE. YOUR USE OF THE SERVICE IS
AT YOUR SOLE RISK. THE CONTENT AND FUNCTIONALITY OF
THE SERVICE IS PROVIDED “AS IS” WITHOUT ANY WARRANTY
OF ANY KIND, EXPRESS OR IMPLIED. ALL SUCH WARRANTIES
OR REPRESENTATIONS (INCLUDING, WITHOUT LIMITATION, THE
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT) ARE
HEREBY DISCLAIMED.
b) LIMITATIONS OF LIABILITY.
WE ARE NOT RESPONSIBLE FOR ANY SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES OR LOSSES RELATING TO THE USE
OF THE RADIO SERVICE, WHETHER BASED ON NEGLIGENCE OR
OTHERWISE. OUR TOTAL LIABILITY TO YOU AND ANY OTHER
PERSONS RECEIVING OUR SERVICES, REGARDLESS OF THE CAUSE,
WILL IN NO EVENT EXCEED THE AMOUNTS THAT YOU HAVE PAID
TO US FOR THE SERVICE THAT YOU RECEIVED DURING THE SIX
(6) MONTH PERIOD IMMEDIATELY PRIOR TO THE SPECIFIC EVENT
THAT GAVE RISE TO THE APPLICABLE DAMAGE OR LOSS. THIS
ALLOCATION OF RISK IS REFLECTED IN OUR PRICES. YOU MAY
HAVE GREATER RIGHTS THAN DESCRIBED ABOVE UNDER YOUR
STATE’S LAWS
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APPENDIX > XM SATELLITE RADIO SERVICE AGREEMENT
This product was developed using DAFIF™, a product of the National
Geospatial-Intelligence Agency.
This product has not been endorsed or otherwise approved by the National
Geospatial-Intelligence Agency, or the United States Department of Defense (10
U.S.C. 425)
a. Under 10 U.S.C. 456, no civil action may be brought against the United
States on the basis of the content of a navigational aid prepared or disseminated
by either the former Defense Mapping Agency (DMA), National Imagery and
Mapping Agency (NIMA), or the National Geospatial-Intelligence Agency
(NGA).
b. The DAFIF™ product is provided “as is,” and no warranty, express or
implied, including, but not limited to the implied warranties of merchantability
and fitness for particular purpose or arising by statute or otherwise in law or
from a course of dealing or usage in trade, is made by NGA as to the accuracy
and functioning of the product.
XM Satellite Radio Service Agreement
XM Satellite Radio Inc.
Hardware and required monthly subscription sold separately. Subscription fee
is consumer only. Other fees and taxes, including a one-time activation fee
may apply. All programming fees and weather data subject to change. XM WX
weather data displays and individual product availability vary by hardware
equipment. Reception of the XM signal may vary depending on location.
Subscriptions subject to Customer Agreement included with the XM Welcome
Kit and available at xmradio.com. Available only in the 48 contiguous United
States. XM WX is a trademark of XM Satellite Radio Inc.
c. Neither NGA nor its personnel will be liable for any claims, losses, or
damages arising from or connected with the use of this product. The user
agrees to hold harmless the United States National Geospatial-Intelligence
Agency. The user’s sole and exclusive remedy is to stop using the DAFIF
product.
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INDEX
INDEX
A
accessories 116
accuracy alarm 77
acquiring satellites 5
Active Route Page 50, 56
options menu 50
Active Track Tab 34, 37
AC outlet 2
add to route 22, 24, 27, 62
Advanced NMEA Output Setup 94
alarms 85
anchor drag 76
arrival 76
DSC 72, 75
navigation 76
next turn 76
off course 76
persistent 76
proximity 32
sonar 78
system 77
weather 77
Alarms Tab 76
alerts. See alarms
anchor drag 76
antenna 1, 121
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append to route 27
arrival alarm 76
ask my preference 87
assign category 30
attention tone 85
AutoLocate 3, 5
Automotive Mode
navigating 57
pages 64–66
page sequence 56
auto arrange 19
average location 28
avoidance button 87
avoids 61, 87
B
backlight 3, 85
Basic Operation 13, 56
battery
level 2
pack 1, 2
saver mode 86
beeper 85
bug indicator 46
C
cable 117
calculation method 87
Calendar Tab 78
calibrate water speed 109
cards, data 120
carpool lanes 87
Categories
Find Menu 17
categories
waypoint 30, 31
CDI. See Course Deviation Indicator
Celestial Tab 79
Hunt & Fish sub tab 82
Sun & Moon sub tab 81
Tide sub tab 79
chain number 124
charging 2
check beacon wiring 123
cigarette lighter adapter 2
cities 17
clear
track log 35
clock alarm 77
color mode 84
Compass Page 45, 85
marine timer 46
options menu 46
showing/hiding 45
connecting the GXM 30 antenna 118
connecting the power cable 2, 117
county warnings 97
count down or up 88
course pointer 46
create
category 30
route 20
waypoints 24, 25
Current Route Page 63
custom avoids 61, 87
D
data card 120
information 19, 40
slot 1
data fields
changing 39
options 131
date 89
date/time 122
Daylight Saving Time 89
day view 79
DB-9 119
deactivate 50
declutter 43
deep water 78
defaults 8, 10
delete
category 31
DSC Call 72
track log 35
waypoint 32
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INDEX
depth 89
detailed maps 42
detour 61
DGPS 92, 93, 122
alarm 77
differential 122, 123
Digital Selective Calling. See DSC
direction display 89
Display Tab 84
distance and speed 89
distress calls 72, 73, 74, 75, 127, 128
drift 78
DSC 71, 127–128
DSC Tab 71
E
edit
route 21, 22, 23, 60
waypoints 29
editing a waypoint 29
emergency 127
entering data 9
erase track log 35
exits 17
external power source 2
external voltage
alarm 77
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F
faster time 87
FCC 127, 137
Field 8
find 17
from a different location 17, 18
menu 15, 19
finding an item 17–19
find current location 3
find menu 17
fishing 82
fish symbols 108
flasher 110
following an automotive route 63
forecast map 98
fronts 97
fuel flow 23
G
getting started 1
going to a destination 13
go to
distress call 73
point 14
position report 73
GPS
off/on 5
options 6
page 6
tips 6
GPS Tab 67
GRI chain 125
GSD 20 103
GSD 20 Sounder Module 103
GXM 30 Antenna 95, 100
connecting 118
H
heading 90
highways
avoid 87
Highway Page 48, 85
hiding/showing 48
options menu 49
page layout 49
setup 49
Hunt & Fish Sub Tab 82
hurricanes 96
I
icons 84
identifier 127
Information Page 19, 43
initialize 3
installation 117
interval 37
invert 50
item details 19
K
keypad 7
L
language 85, 86
legs, track 37
lightning 96
lithium-ion battery 2
local time 89
location 6, 26
location format 90, 126
log filter 84
longitude 132
LORAN TD Setup 124
lost satellite reception 5
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INDEX
M
magnetic variation 90
main menu 67–94
Alarms tab 76
Calendar tab 78
Celestial tab 79
Display tab 84
DSC tab 71
GPS tab 67
Message tab 83
Points tab 70
Route tab 70
Sonar tab 75
Track tab 71
Weather tab 68, 98–100
XM tab 69
man overboard. See MOB
map datum 126
map orientation 41
Map Page 38, 64
declutter 43
setup 40
Marine Mode
pages 38–42
Marine Pages 38–55
Active Route 50
Compass 45
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Highway 48
Map 38
Position Data 51
XM Audio 52
marine timer 46
marine warnings 97
Maritime Mobile Service Identity.
See MMSI
marking a waypoint 9, 25, 26, 28
underwater 107
mayday 74, 128
measuring distance 44
messages 129, 131
Message Tab 83
mils 89
MMSI 71, 127
MOB 14, 16
modes 56
month view 79
moon information 81
Mrn Wx Tab 97
N
NAV/MOB 16
navigate
route 14, 21
track 14, 16, 37
navigation
resuming 60
stopping 60
navigation alarms 76
near
current route 18, 19
destination 18, 19
next 18, 19
other 18, 19
new
altitude 6
location 6, 12
waypoint 26, 28
NEXRAD Radar 96
next turn 88
alarm 76
NMEA 92, 93, 94, 121
north up 6, 41
no beacon signal 123
O
“Off Route Recalculating” Announcement 88
off course 76
off road 87
on-screen button 8
Options Menu
opening 9
using 9
overzoom 42
P
page layout 39
highway 49
trip computer 66
page sequence 13
panning the map 38, 42
PC interface cable 119
persistent alarm 76
plan route 23, 50
plan trips 78
point 79
points of interest 17
Points Tab 70
Position Data Page 51
options menu 51
position mode 38
position report 72–75, 127–128
power 3, 117
connector 1, 2
outlet 2
practice mode. See simulator mode
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INDEX
project waypoint location 28
proximity 32
alarms 32
points tab 32
waypoint 33
R
radio ID 100
recalculating 88
receiver not usable 5
receiver status 5
receive satellite signals 3
receiving a DSC call 73
record tracks 34, 37
reference position 18
reset timer 88
reset trip data 51
review route 21
Road Routing Tab 86
route 22, 79
add points 22, 27
create 20–23
edit 21–23
leg transition 24
preference 87
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Route Tab 70
RTCM 92, 93
S
sail boat racing timer 46
satellite acquisition 5
satellite mosaic 96
satellite signals 4
satellite sky view 122
save present location 25
save this route 65
saving the current route 65
saving tracks 35, 36, 37
scanning for beacon 123
scan for a frequency 92
scroll bar 8
searching for WAAS 123
searching the sky 5
search history 18
selecting options 9
serial communications port 119
serial data format 92
serial number 1
Setup Tab
Guidance sub tab 88
Interface sub tab 91
Location sub tab 90
Road Routing sub tab 86
System sub tab 86
Timers sub tab 88
Time sub tab 89
Units sub tab 89
Welcome sub tab 91
set an alarm 76
set date 89
set fuel flow 23
set speed 23
shallow water 78
shorter distance 87
signal strength 5
simulate 6, 86
GPS 5
simulator mode 12
new location 12
starting 12
software license agreement 133
sonar 103, 104–107
adjusting 105–107
alarms 77
on the map page 103
setting up 108, 110
understanding 112
Sonar Tab 75
Sound Tab 85
speaker 85
specifications 115
speed filter 86
split screen, sonar 107
Srfc Wx Tab 97
stop navigation 50
storm cells 96
Sun & Moon Sub Tab 81
surface pressure 97
surface winds 97
T
temperature 89, 111
text language 86
thermoclines 114
141
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INDEX
tide
chart 80
information 80
station 17, 80
sub tab 80
time
delay 124
format 89
offsets 126
zone 89
timer 46
toll roads 87
TracBack 14, 37
track
legs 37
log 34, 35, 37
tab 34
TracBack 36, 37
Track Tab 71
track up 6, 41
transducer 108, 113
Trip Computer Page 51, 66
options menu 66
page layout 66
trip planning 23, 78
tuning beacon 123
142
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turn-by-turn route 60, 63
turn off recalculation announcement
88
turn unit on and off 3
U
u-turns 87
underwater waypoints 107
unit overview 1
unpaved roads 87
usage mode 86
USB 92
connector 1, 119
data cable 119
drivers 119
User Points Tab 29
UTC 89
UTM/UPS 126
V
vertical speed 89
VHF 71, 127
via points 62
view details 43
visibility 97
voice language 85
volume 3, 85
W
WAAS 6, 86, 117, 123
Warning Page 3
water speed 109
calibrating 109
water temp 78
water temperature 97
wave
direction 97
height 97
period 97
waypoint 17, 24
categories 30
create 24–33
edit 29
information page 19
name 29
projecting 28
proximity 33
reviewing 26
symbol 29
transition to next 24
weather alarms 77
weather data warranty 136
weather information
finding 101
Weather Tab 68, 96
options menu 99
using 98
week view 79
welcome message 91
whiteline 106, 114
Wide Area Augmentation System.
See WAAS
X
xImage 120
XM Audio Page 52–53
audio on/off 55
favorites 54
hiding/showing 53
options menu 53
scanning channels 54
XM Tab 69
XM WX Weather 95
finding weather information 101
Mrn Wx tab 97
options menu 95
Srfc Wx tab 97
viewing 95
Weather tab 96
Z
zoom 41
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For the latest free software updates (excluding map data) throughout the life of your
Garmin products, visit the Garmin Web site at www.garmin.com.
© 2006 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151st Street, Olathe, Kansas 66062, USA
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, UK
Garmin Corporation
No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
www.garmin.com
Part Number 190-00508-00 Rev. C
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