Garmin GPSMAP 185 GPS Receiver User Manual

OWNER’S MANUAL
AND REFERENCE
GPSMAP 185
Sounder
TM
© 1999 GARMIN Corproation
Garmin International, Inc., 1200 E. 151st Street, Olathe, KS 66062 USA
Tel: 913-397-8200
FAX: 913-397-8282
Garmin (Europe) Ltd., Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey SO51 9AQ UK
Tel: 011-44-1794-519944
FAX: 011-44-1794-519222
Garmin (Asia) Corp., 3F, No. 1, Lane 45, Pao Hsing Road, Hsin Tien, Taipei, Taiwan R.O.C.
Tel: 011-886-02-2917-4107
FAX: 011-886-02-2917-1758
Software Version 4.02 or above
Internal Database Version 3.00
Micro G-chartTM cartridge data is copyrighted by Navionics Corporation and
GARMIN Corporation and may not be copied or used for any other purpose without permission.
INTRODUCTION
Foreward
© Copyright 1999
GARMIN Corporation
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
Corporation. GARMIN Corporation hereby grants permission to download a single copy of this manual and of any revision to 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 or revision 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.
GarminTM, Micro G-chartTM, AutolocateTM,
TracBackTM, and PhaseTrac12TM are trademarks
of Garmin Corporation and may only be used
with permission. All right are reserved.
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.
March 1999
Part #190-00158-10 Rev. A
Printed in Taiwan.
i
INTRODUCTION
Cautions
CAUTION!
The GARMIN GPSMAP 185 Sounder has no
user-serviceable parts. Should you ever
encounter a problem with your unit, please
take it to an authorized GARMIN dealer for
repairs.
The GPSMAP 185 Sounder is screwed shut.
Any attempt to open the case to change or
modify the unit in any way will void your
warranty and may result in permanent damage to the equipment.
Caution
The GPS system is operated by the United States government, which is solely
responsible for its accuracy and maintenance. The system is subject to changes
which could affect the accuracy and performance of all GPS equipment. Although
the GARMIN GPSMAP 185 Sounder is a precision electronic NAVigation AID
(NAVAID), any NAVAID can be misused or misinterpreted and, therefore, become
unsafe.
Use the GPSMAP 185 Sounder at your own risk. To reduce the risk of unsafe
operation, carefully review and understand all aspects of this Owner’s Manual—and
thoroughly practice operation using the simulator mode prior to actual use. When in
actual use, carefully compare indications from the GPSMAP 185 Sounder to all available navigation sources, including the information from other NAVAIDs, visual
sightings, charts, etc. For safety, always resolve any discrepancies before continuing
navigation.
NOTE: This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. There is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful interference, the user is encouraged to try to correct the interference by relocating the equipment or connecting the equipment to a different circuit. Consult an authorized dealer or other qualified technician for additional help if these remedies do not correct
the problem.
This device complies with Part 15 of the FCC limits for class B digital devices for
home or office use. Operation 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.
ii
Designed for detailed electronic charting and complete depth sounding capability, the GARMIN GPSMAP 185 Sounder is a powerful navigation device that can
also give you the fishfinding information you need in fresh or saltwater:
Precision Performance
• High-contrast, four-level gray, LCD screen
• PhaseTrac12 receiver tracks and uses up to 12 satellites simultaneously
for fast, accurate positioning
• Differential-Ready— just add the optional GBR 21 beacon receiver for better
than 5-meter accuracy
• Gasketed case for use in exposed locations
Advanced Navigating and Plotting
• 250 alphanumeric waypoints with selectable icons and comments
• Built-in worldwide database usable from 4096 to 64 nm scales
• 20 reversible routes with up to 30 waypoints each
• Micro G-chartTM electronic charting with inland and offshore coverage
• TracBackTM route feature which allows you to quickly retrace your track log to
a starting position
• Built-in simulator mode
Superior Fishfinding Ability
• Four zoom levels with a moving view window
• Underwater waypoint marking
• Map/Sounder split screen combines navigation and fishfinding information
• Fish and depth alarms
• Continuously shown digital depth display on all pages
INTRODUCTION
Capabilities
Warning
The GPSMAP 185 Sounder should not be used as a
navigational aid or depth sounder to
prevent collision, grounding, boat damage, or personal
injury. The digital depth displayed is the depth under
the transducer and not necessarily the front of the
boat. By the time a depth is displayed most of your
boat may have already passed over that area. We recommend that you operate the boat at very slow speed
if you suspect shallow water or submerged objects.
iii
INTRODUCTION
Warranty
WARRANTY
GARMIN warrants this product to be free from defects in materials and workmanship for
one year from the date of purchase. GARMIN will, at its sole option, repair or replace any
components which fail in normal use. Such repairs or replacement will be made at no charge
to the customer for parts or labor. The customer is, however, responsible for any transportation costs. 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 OR ALL OTHER WARRANTIES EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING AND LIABILITY ARISING UNDER 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.
To obtain warranty service, call the GARMIN Customer Service department (913-3978200 M-F 8 a.m. to 5 p.m. CST) for a returned merchandise tracking number. The unit
should be securely packaged with the tracking number clearly marked on the outside of the
package and sent freight prepaid and insured to a GARMIN warranty service station. A copy
of the original sales receipt is required as the proof of purchase for warranty repairs. GARMIN
retains the exclusive right to repair or replace the unit or software at its sole discretion.
SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF
WARRANTY.
iv
Preface
INTRODUCTION
Preface
Congratulations on choosing one of the most advanced depth sounding and
marine navigation systems available! The GARMIN GPSMAP 185 Sounder combines the proven performance of GARMIN GPS, powerful Micro G-chart electronic
charting, and full featured depth sounding into one unit to create an unsurpassed
marine navigation and fishfinding package.
To get the most out of your new navigation and sounding system, take the time
to go through this operators manual and learn the operating procedures for your
unit. This manual is broken down into two parts for your convenience.
Part One introduces you to the GPSMAP 185 Sounder and provides a Getting
Started tour so that you may become more familiar with the unit. This section will
provide you with a basic working knowledge necessary to use the unit to its fullest
potential.
Part Two is divided into sections that provide detailed references to the
advanced features and operations of the GPSMAP 185 Sounder. This allows you to
concentrate on a specific topic quickly, without reading through entire portions of
text that you may not need. This section can be used to look up detailed information about the GPSMAP 185 Sounder.
WARNING!
The electronic chart is an aid to navigation
and is designed to facilitate the use of authorized government charts, not replace them.
Only official government charts and notices to
mariners contain all information needed for
safe navigation – and, as always, the user is
responsible for their prudent use.
v
INTRODUCTION
Packing List
Before installing and getting started with your unit, please check to see that
your package includes the following items. If any parts are missing, please see
your GARMIN dealer immediately.
Standard Package*:
• GPSMAP 185 Sounder Unit
• External Antenna and 30’ cable
• Power/Data Cable
• Mounting Bracket
• Owner’s Manual
• Quick Reference Card
*For assembly part number 010-00150-01, a standard transom-mount transducer is
included.
Optional Accessories:
• Micro G-chart Electronic Chart Cartridges
• PC Kit
• In-Hull and Transom-Mount Transducers with or without temperature and
speed-thru-water capability.
vi
Foreward..........................................................................................................................i
Cautions..........................................................................................................................ii
Capabilities/Warranty ................................................................................................iii-iv
Preface/Packing List.....................................................................................................v-vi
Table of Contents/Keypad Usage .............................................................................vii-viii
Getting Started...........................................................................................................1-19
Section 1: GPSMAP Status Page ...............................................................................20-22
Satellite and receiver status, entering initial positions
Section 2: Position Page ...........................................................................................23-24
Position Page description and uses
Section 3: Sounder Page...........................................................................................25-35
Sounder Page description, zooming, underwater waypoints, and options
Section 4: Map Page.................................................................................................36-44
Map Page description, modes, scales, and options
Section 5: Navigation Page ......................................................................................45-47
Navigation Page use and options
Section 6: Main Menu Page .. ........................................................................................48
Viewing the main menu page and selecting submenus
Section 7: Waypoints .. ............................................................................................49-57
Creating, using, and editing waypoints
Section 8: GOTO/MOB/TracBack Functions ............................................................58-61
Going to a destination and using GOTO options/TracBack routes
Section 9: Routes .....................................................................................................62-69
Creating, editing, and using routes
Section 10: Setup Menus..........................................................................................70-79
System and navigation setup; timers, alarms and track log
Section 11: Using Micro G-chart cartridges..............................................................80-81
Inserting, removing, and using electronic chart cartridges
GETTING STARTED
Table of Contents
APPENDICES
Appendix A:
GPSMAP 185 Sounder Installation
. . . . . . . .82-85
Appendix B:
Wiring and Specifications . . . . . . . . . . . . . . .86-87
Appendix C:
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . .88-89
Appendix D:
Map Datums . . . . . . . . . . . . . . . . . . . . . . . . .90-92
Appendix E:
Navigation/Depth Sounder Terms . . . . . . . . .93-94
Appendix F:
Time Offset Chart . . . . . . . . . . . . . . . . . . . . . . . .95
Appendix G:
Loran TD Position Format . . . . . . . . . . . . . . . . . .96
Appendix H:
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97-100
vii
GETTING STARTED
Keypad Usage
The GPSMAP 185 Sounder’s advanced
keypad system is designed to allow for fast,
convenient selection of navigation options
and data entry.
The Getting Started Tour will introduce
you to the keypad and provide a ‘hands-on’
lesson in using the GPSMAP 185 Sounder.
We strongly encourage you to take the
Getting Started tour before using your unit
for actual navigation and fishing.
The GPSMAP 185 Sounder Quick
Reference Card contains helpful tips on
using the unit and performing various navigation and sounder tasks. It’s a good idea to
keep the Quick Reference Card nearby
whenever you’re operating your new
GPSMAP 185 Sounder.
viii
P
Turns the unit on and off and controls 3-level
screen backlighting.
J
Scrolls the main pages in sequence and returns
display from a submenu page to a main page.
M
Captures your present position and displays the
mark position window.
G
Displays the GOTO waypoint window, allowing
you to select the destination waypoint. Press
GOTO twice to select a destination waypoint
graphically from the map.
O
Displays context-sensitive options window.
Press MENU twice to display main menu page.
T
Activates highlighted fields and confirms menu
options and data entry.
Q
Returns display to a previous page or restores a
data field’s previous value.
C
Decreases the scale of the moving map and highway
pages.
D
R
B
Increases the scale of the moving map and highway pages.
Controls the movement of the cursor and is
used to select options and positions, and to
enter data.
Marks your present GPS position and instantly
sets a return course while providing steering
guidance.
Intializing the Receiver
GETTING STARTED
The first time you power up your new GPSMAP 185 Sounder is an important step
in getting the best possible GPS performance. The receiver must be given an opportunity to collect satellite data and establish its present position. To ensure proper initialization, the GPSMAP 185 Sounder is shipped from the factory in AutoLocateTM
mode, which will allow the receiver to “find itself” anywhere in the world. To speed
up the initialization process, we recommend using the graphic initialization process
described below, which will usually provide a position fix in about a minute.
Initialization
Before you initialize, make sure the GPSMAP 185 Sounder unit and antenna have
been correctly installed on your vessel according to the instructions in Appendix A.
To turn the GPSMAP 185 Sounder on:
1. Press and hold the P key until the power tone sounds.
The welcome page will appear while the unit conducts a self test. Once the
internal test is complete, the mariner’s warning will appear, asking you to read and
acknowledge important information regarding the proper use of electronic charts.
To acknowledge the mariner’s warning:
1. Press the T key.
A message alert and prompt will also appear to ask you to select an initialization
method.
To view a system message:
1. Press the J key.
2. Press the J key again to return to the previous page.
A
B
A. The welcome page will be displayed while
the unit performs a self-test.
B. Confirm the Mariner’s Warning before
starting navigation. Remember that the
electronic chart is designed as a supplement to local government charts, not as a
replacement.
1
GETTING STARTED
Initialization
The select initialization window will appear, with the ‘select from map’ option
highlighted.
1. Press T to initialize the receiver from the built-in worldwide map.
The map page will appear, prompting you to select your approximate present position with the map cursor.
1. Use the R keypad to move the map cursor to a location close to your present position. If you
have difficulty identifying your exact position, press the C key to zoom in to a lower map
scale.
2. Press T to confirm your selection.
A
B
A. Use the arrow keypad to move the cursor to a
location close to your present position.
B. Hollow signal strength bars will appear on the
status page while the receiver collects satellite
data.
The GPSMAP 185 Sounder will now begin searching for the appropriate satellites
for your present position and should acquire a fix within a minute or so. While the
receiver searches for satellites, a flashing satellite icon will appear at the left-hand side
of the status bar located at the bottom of the screen. The status bar is used to monitor
the current status of functions such as satellite signal reception, activated alarms, and
also constantly shows the digital depth. A signal strength bar for each satellite in view
will appear on the lower half of the page, with the appropriate satellite number under
each bar. The progress of satellite acquisition is shown in three stages:
• No signal strength bars— the receiver is looking for the satellites indicated.
• Hollow signal strength bars— the receiver has found the indicated satellite(s) and is collecting data.
• Solid signal strength bars— the receiver has collected the necessary data and the satellite(s) is ready for use.
Once the receiver has collected information from at least three satellites, the flashing satellite icon on the status bar will glow steadily, and the GPSMAP 185 Sounder is
ready for use.
2
GPSMAP 185 Sounder Getting Started Tour
The GARMIN GPSMAP 185 Sounder is a powerful electronic navigation and
depth sounding system that provides detailed chart coverage and convenient control of many advanced features right from the screen display. This tour is designed
to take you through the basic pages and functions of the system using the simulator mode. Once you’re familiar with the main pages and functions of the unit, refer
to the reference section for instructions on performing specific tasks and functions.
The Getting Started tour assumes that the receiver has been properly installed
and initialized, and you have not changed any of the default unit settings. If you
have changed any settings (position formats, units of measure, etc.), the descriptions and pictures in the tour may not match your configuration.
GETTING STARTED
Power On/Screen Contrast
To turn the GPSMAP 185 Sounder on:
1. Press and hold the P key until the power tone sounds. The welcome page will appear
while the unit conducts a self test.
2. Once the self test is complete, press the T key to acknowledge the mariner’s warning.
The satellite status page will appear as the receiver begins acquiring satellites.
From the status page, you may also adjust the screen contrast and backlighting.
To adjust the screen contrast:
1. To increase the screen contrast, press the right arrow of the R keypad.
2. To decrease the screen contrast, press the left arrow of the R keypad.
3. Press the T key to finish.
The GPSMAP 185 Sounder’s three-level screen backlighting is controlled with
P key, and may be adjusted at any time from any page.
To turn on and adjust the backlighting:
1. Press the P repeatedly until the backlighting is at the desired level (off, 1, 2, or 3).
A
B
A. The screen contrast may be adjusted from the
status page by pressing the ARROW KEYPAD.
Press EDIT/ENTER to confirm changes.
B. The status bar at the bottom of the screen is
displayed at all times. It continuously shows
current depth and displays icons which show
what mode the unit is in, satellite signal presence, and which alarms (if any) have been triggered. The current scale will also be displayed if
you are viewing the navigation or map page, or
if you are using the sounder zoom function.
3
Status Field
GETTING STARTED
Status Page/Simulator Mode
Horizontal Accuracy
Satellite
Sky View
Dilution of Precision
Signal Strength
Indicators
Status Bar
Digital Depth
The GPSMAP 185 Sounder’s status page provides a visual reference of satellite
acquisition and receiver status, with a signal strength bar graph and a satellite sky
view in the center of the page. Each page of the GPSMAP 185 Sounder’s system
also features an options page, which gives you access to other functions and features that relate to the specific page you are viewing. To get a feel for how the
options pages work, let’s put the GPSMAP 185 Sounder into simulator mode.
A
B
A. To start the simulator, confirm the simulator
warning. Simulator mode should never be
used for actual navigation.
B. Whenever the GPSMAP 185 Sounder is in
simulator mode, a ‘Setup Simulator?’ option
will appear on the options menu for each
page. An ‘Exit Simulator?’ option will also
appear on the status page options menu.
4
To place the GPSMAP 185 Sounder in simulator mode:
1. From the status page, press the O key. The options page will appear, displaying a menu
of options and functions for the status page.
2. Use the UP or DOWN arrow of the R keypad to highlight the ‘Start Simulator?’ option and
press T.
3. Press the T key to confirm the simulator warning.
Once the simulator has been started, the status field at the top of the page will
display a ‘Simulating Navigation’ status. Now you’re ready to continue the rest of
the tour. Keep in mind that the GPSMAP 185 Sounder does not track satellites in
simulator mode, and this mode should never be used for actual navigation or to
determine the water depth. All the waypoint and route planning done in simulator mode will still be retained in memory for future use.
GETTING STARTED
Page Sequence/Position Page
The satellite status page is one of five main pages used in the GPSMAP 185
Sounder’s system. All five pages are linked together in a simple chain, which
allows you to scroll through the pages in either direction using the J and Q
keys. To continue the tour, let’s move on to the next page, the position page.
To scroll to the next page in sequence:
1. Press the J key.
The GPSMAP 185 Sounder’s position page shows where you are, what direction
you’re heading and how fast you’re going. The compass tape at the top of the page
indicates the direction you’re moving. The four user-selectable data fields below
the compass tape show your current course and speed over ground, along with a
resettable trip odometer and depth display. Your current latitude and longitude,
along with a 12/24-hour clock, appear at the bottom of the page.
Now that you’ve seen how the status and position pages can be used to monitor
satellite acquisition and your present position, let’s take a minute to learn how to
mark and store our present position as a waypoint. (Since we’re in simulator
mode, the present position displayed will be the last position calculated by the
receiver, which should be the spot where you’ve initialized the unit.) This will also
give you an opportunity to see how the GPSMAP 185 Sounder’s keypad and T
key are used for data entry.
Compass
Tape
Data
Fields
Position
Coordinates
Time
of Day
Status Bar
5
To mark your present position:
GETTING STARTED
Using
Marking
the A
GOTO
Position
Key
1. Press the M key. The mark position page will appear, with a default three-digit
waypoint name, symbol, position, and depth (at this position).
2. Use the R keypad to highlight the waypoint name field (001) and press T.
3. Press the LEFT ARROW of the R keypad to clear the name field.
4. Use the R keypad to enter the name ‘DOCK’, using the UP and DOWN arrows to select
each letter, and the RIGHT arrow key to advance to the next character position. If you
make a mistake and select an incorrect character, simply use the LEFT arrow key of the
R keypad to backspace the cursor and correct the entry.
5. Press T to confirm the name.
A
B
ss The mark position page will automatically
assign a default three-digit name for each
waypoint, which can be changed at any time
to an alphanumeric name containing up to
six-characters.
B. A complete set of waypoint symbols allows
you to mark inland and offshore waypoints
with a custom icon for fast waypoint recognition.
6
6. The field highlight will advance to the symbol field. Press T to access the waypoint
symbol page.
7. Use the R keypad to highlight the ANCHOR symbol.
8. Press T to confirm the symbol.
9. Press T again to confirm the ‘DONE?’ prompt and save the waypoint.
The waypoint is now stored in memory. Note that waypoints may also be created graphically from the map display, by manually entering position coordinates,
or as underwater waypoints from the sounder page. Each of these techniques is
described in the reference section of the manual and/or on your GPSMAP 185
Sounder quick reference guide. To continue our tour, let’s move on to the
sounder page.
1. Press the J key.
Data Field
GETTING STARTED
Range Mode
Sounder Page
Fish Arch
Thermocline
Whiteline
Status Bar
The sounder page lets you use the GPSMAP 185 as a fishfinder. The top of the screen
contains any of thirteen selectable data field options, while the middle of the page contains a
right-to-left moving sonar image of the water beneath your boat. (Note: Items appear on the
screen as they pass under your transducer. Those objects appearing on the right side of the
screen are closer to you than those on the left.) Fish are displayed as a darkened arch or a
fish icon in three different sizes. Thermoclines (layers of water separating warmer water
above from cooler water below) are shown as shades of gray.
The area of strongest sonar return (or whiteline) is displayed as a solid gray. Typically, the
bottom will be the primary source of the whiteline. A thin whiteline indicates a softer bottom while a thick whiteline shows a harder bottom. A black line is used to show the point
where water meets the whiteline. This black line will follow the bottom contour, along with
any significant objects lying on the bottom. Along the right side of the screen is an adjustable
scale which reflects the depth of the area being displayed. The status bar at the bottom of the
page displays satellite signal status, digital depth, and any triggered alarms. More on the
sounder page may be found on pages 25-35.
A
B
A. When adjusted correctly, the bottom is outlined by the whiteline. To adjust the whiteline,
see page 30.
B. Pause the screen by pressing the EDIT/ENTER
key at any time. To continue screen movement, press EDIT/ENTER again.
Pausing is used to allow more time to examine
the screen display and is necessary when using
the underwater waypoint function.
7
GETTING STARTED
Sounder Page
The GPSMAP 185 Sounder uses three range modes: auto, manual, and window.
Auto mode displays the most information possible while continuously showing
the bottom. Manual mode lets you select the displayed depth. Window mode
allows you to define a starting depth and length of the range window. You may
switch between auto and manual modes by using the R keypad. Window range
mode, however, must be activated from the sounder options menu (see page 31).
To switch from auto to manual mode:
1. Press the R keypad up or down until the desired depth range is displayed on the
depth scale at the right side of the page.
2. Press T to confirm the selected range.
To switch from manual to auto mode:
1. Press the R up or down and hold it until you hear a repeated beep. ‘Auto’ will be
displayed in the function field at the top right corner of the page.
2. Press T.
A
B
A. When switching between auto and manual
modes, the range scale will be highlighted.
B. The digital depth of the waypoint is captured with the underwater waypoint function.
The underwater waypoint feature marks a waypoint’s position and its depth.
This makes it easier to find and use an object such as a stump for a future fishing
location.
To mark an underwater waypoint:
1. Press T to pause the screen movement.
2. Use the R keypad to move the cursor onto the target (underwater drop off,
stump, etc.) you want to mark. A data field will appear with the cursor’s depth and
bearing and distance from your current position.
3. Press T. A waypoint page will appear with the waypoint’s coordinates, default
three-digit name, and depth.
4. Enter any waypoint information such as name, comment, etc., and press T.
8
5. When finished, press Q or T.
Another useful feature of the GPSMAP 185 Sounder is the sounder zoom, which
allows you to instantly “zoom in” to look at a specific portion of the sounder display
by using the either the C or D key. The sounder zoom function is divided into
four display levels:
• 2X Split Screen––Shows two reduced-size sonar pictures at the same time. The
top half of the display screen shows the complete sonar picture at its original
scale. The bottom half shows a portion of the original picture at 1/2 depth
scale.
• 2X Full Screen––Displays the 2X zoomed picture on the full GPSMAP 185
Sounder screen and does not show the original scale picture.
• 4X Split Screen––Shows two reduced pictures, with one at the original depth
scale and one at 1/4 the original depth scale.
• 4X Full Screen––Displays only the 4X zoomed picture on the full GPSMAP 185
Sounder screen.
Once activated, the zoomed picture becomes the sounder page display. Note: the
zoom function can only be deactivated by pressing the D key until the original scale
picture appears. Pressing Q will not turn off the zoom function.
The zoom function operates in either auto zoom or manual zoom. Auto zoom will
follow the bottom contour while manual zoom will display the selected depth.
To access the sounder zoom function:
1. While viewing the sounder page, press C once. The 2X split screen will appear.
(Note: the current zoom scale will be displayed on the status bar at the bottom of the
screen).
2. Continue to press C to advance to further zoom screen levels.
3. To deactivate the sounder zoom function, press D until the original scale picture
appears and a triple beep sounds.
GETTING STARTED
Sounder Page
A
B
A. Use the zoom window to view a smaller portion of the complete range in greater detail.
B. Moving the zoom window allows you to view
anywhere between the surface and the bottom quickly. See page 28 for directions on
moving the zoom window.
For more on the zoom function, see pages 27-29.
9
Let’s continue the Getting Started Tour with the map page.
GETTING STARTED
Map Page
1. Press the J key.
The GPSMAP 185 Sounder’s map page combines digital chartplotting with a userselectable display of navigation data and a built-in worldwide database to 64 nm. It
will also be the page you use most to create and edit waypoints and routes. Before
we take off on our practice route, let’s take a brief look at its various features and
displays.
Data
Fields
Boat
Icon
A
B
A. The map/sounder split screen displays cartography and sounder information at the same time.
The split screen functions as a map page only
and any changes to the sounder display must be
made from the sounder page. Use the QUIT or
PAGE key to quickly switch between the map
split-screen and the sounder page.
B. The map page can also be configured to display
additional data fields and a graphic course deviation scale or compass. See page 40 for more on
map options.
10
Map
Scale
The map display, located in the middle of the page, shows your boat as a triangle
marker on an electronically generated chart. Geographic names, markers and buoys
that are provided by the Micro G-chart cartridge you’re currently using are also
shown. It also displays your track, routes and nearby waypoints. An on-screen
cursor lets you pan to other map areas, determine the range and bearing to a position, and perform various waypoint and route functions.
The data window, located at the top of the page, provides a user-selectable display of various navigation data, including course, speed over ground, and bearing
and distance to the cursor or a particular waypoint. The status bar, located at the
bottom of the page, displays the current map scale setting, as well as the status
information described on page 21.
Using the Map Cursor
GETTING STARTED
Working from the map page is a simple process that centers around the use of
the cursor. Controlled by the R keypad, the cursor is an important tool that can
be used to pan to other map locations, mark and edit waypoints and routes, and
review position data of on-screen navaids and waypoints.
Map Cursor
To get a feel for using the map page and using the cursor, try the following
exercise:
1. Use the C key to set the map scale to the 64 nm setting. Your boat should be near the
center of the map, at the receiver’s last known position. (If your boat isn’t where it
should be, make sure that you have initialized the receiver and acquired a position as
described on pages 1-2.)
2. Use the DOWN arrow of the R keypad to move the cursor down to the first lat/lon grid
south of your boat’s position.
3. Using the R keypad to move the cursor, try following the outline of the lat/lon grid closest to your boat. Notice how another data field appears at the top of the page, showing
the bearing and distance from your boat to the cursor, along with the lat/lon of the cursor.
4. Press the Q key to remove the cursor and recenter your boat on the map display.
As you become more familiar with the cursor, you’ll see that the map display
actively scrolls or ‘pans’, letting you explore areas around the world (even outside
of your current Micro G-chart coverage) and create waypoints and routes.
Wherever you move the cursor, you’ll always be just one Q keystroke away
from returning the map to your present position.
Now that you have a feel for how the cursor works, let’s move on and see how
the GPSMAP 185 Sounder works on the water. To help you practice using the
map page and other features, we’ve stored a practice route in the receiver’s permanent memory so you can see exactly what you’ll experience when you’re navigating with your new GPS chartplotter.
A
B
A. Whenever the cursor is active, the bearing
and distance of the cursor from your present
position will appear in a pop-up data window. To remove the cursor and recenter your
vessel on the map, press the QUIT key.
B. To select an on-screen waypoint, simply
move the cursor over the desired waypoint.
The waypoint/navaid name and position,
along with the bearing and distance from
your present position, will be displayed.
Note: Underwater waypoints are also shown
on the map.
11
Going to a Destination
GETTING STARTED
Using the GOTO Function
GPS is all about marking positions as waypoints and navigating to them using
the receiver’s steering guidance and map displays. We’ve already seen how to use
the M key to store our present position, so it’s time to move on to the fun
part—going to a destination. The G key, located on the left side of the keypad
above the Q key, is the primary tool used to select a destination waypoint or a
route to navigate. The G key can be used in three primary ways:
• Pressing G once displays a list of all waypoints in memory, from which
you can select a single destination waypoint.
• Pressing G followed by the O key provides a list of GOTO options
that lets you start a TracBackTM route, select a destination waypoint from
the nearest waypoints list, select a stored route to navigate, or cancel the
current GOTO destination.
• Pressing G twice allows you to graphically select an on-screen waypoint,
navaid or cursor position as a destination directly from the map display.
A
B
A. Pressing GOTO once displays a list of all waypoints stored in memory. To pick a destination,
select the desired waypoint and press
EDIT/ENTER.
B. The GOTO options page allows you to either
start a TracBack route back home, select a destination from the nearest waypoints list, or
select a route to navigate.
For our simulated trip, we’re going to select the pre-programmed tour route
[the second method], which will automatically place our vessel at the first route
waypoint. This will also give us an idea of how the O key is used throughout
the GPSMAP 185 Sounder system to provide context-sensitive options and functions. Let’s give it a try by activating the practice route stored in memory for navigation:
1. Press G. The waypoint list page will appear. (If we were selecting a single waypoint
to navigate to rather than a route, we would highlight the waypoint and press T.)
2. Press O to display the context-sensitive options available for the GOTO function.
3. Use the R keypad to highlight the ‘Select Route?’ option. Press T to confirm.
4. The select route page will appear, with the ‘GPSMAP TOUR’ route highlighted.
5. Press T. The map page will reappear and display five waypoints chained together in
a simple route, with your boat at the first route waypoint.
12
A data field at the top of the page will now display the bearing and distance to
the second route waypoint. To get started, let’s enter a speed for our vessel, which
we can do from the ‘Setup Simulator?’ listing on the options page. The setup simulator page is also available from any other page in the main page sequence.
GETTING STARTED
Simulator Setup/Map Scales
To enter a boat speed:
1. Press the O key to display the map options page.
2. Use the R keypad to select the ‘Setup Simulator?’ option and press T.
3. Once the setup simulator page appears, press T to access the SOG field.
4. Use the R keypad to enter a speed of 60 knots.
5. Press T to finish, and J to return to the map display.
Once a speed has been entered, you’ll notice that the map will begin to move
slowly, keeping your boat centered on the display. To get a better view of what’s
going on, zoom in to a closer map scale.
1. Press the C key to select the 16 nm scale.
You’ll now have a clearer picture of the route we are navigating, along with an
outline-only presentation of the surrounding shoreline. Because the usable range
of the built-in database is only valid to 64 nm scale, we no longer have full cartography available. Keep in mind that whenever you do exceed the usable range of
the built-in database or the Micro G-chart cartridge in use, the range field will display ‘OVR ZM’ or ‘NO MAP’ to indicate that you should exercise extreme caution
using the cartography data. See pages 39 and 81 for more information on map
scales and using Micro G-chart detailed cartography.
Now that we’ve zoomed in a little closer to our route, we can pan ahead of our
vessel with the cursor to review and create on-screen waypoints and navaids. Try
moving the cursor to select the ‘TOUR3’ waypoint— just use the R keypad to
move the cursor as close as possible to the waypoint. (To move the cursor in small
increments, try a series of short key presses.)
A
B
A. To enter a boat speed or define the simulated
course, highlight the ‘Setup Simulator?’ option
and press EDIT/ENTER.
B. Enter a boat speed of 60 knots to begin the
tour. This will allow you to complete the
Getting Started tour in 10-15 minutes.
13
GETTING STARTED
Reviewing and Creating Waypoints
on the Map
Once the cursor is over the TOUR3 waypoint, you’ll notice that the waypoint
symbol and name will become highlighted. The data field at the top of the page
will display the waypoint name, the range and bearing from your present position,
and the coordinates for the waypoint.
To review the waypoint page for a selected waypoint:
1. Press the T key.
2. To return to the map page, press T again.
A
B
A. Waypoints can be created from the map display
by moving the cursor to the desired position
and pressing the EDIT/ENTER key.
B. The create new waypoint page will automatically assign the next available three-digit number
as the default waypoint name. If you are creating a waypoint at an on-screen navaid, the
navaid icon and name will be used as the
default symbol and comment.
14
The cursor can also be used to create new waypoints right from the map
display.
To create a new waypoint using the cursor:
1. Use the R keypad to move the cursor as close as possible to the following position:
N 35º 02.129’; W 076º 26.106’ (Use the data window to verify the cursor position.)
2. Press the T key to capture the cursor position.
3. Use the R key to highlight the waypoint symbol field.
4. Press T to access the symbol page.
5. Press the DOWN arrow of the R keypad twice to select the wreck symbol.
6. Press T to confirm, and T again to finish.
Now that we’re navigating to an actual destination, let’s move on to the next
page of the GPSMAP 185 Sounder system, the navigation page:
1. Press the J key.
Compass Tape
GETTING STARTED
Navigation Page
Data
Fields
Graphic
Highway
Pointer to
Waypoint
CDI
Scale
The navigation page provides graphic steering guidance to your destination.
The bearing (BRG) and distance (DIS) to the destination, with your current course
(COG) and speed over ground (SOG), are displayed at the top of the page, along
with a compass tape to indicate your cardinal heading. The estimated time
enroute (ETE) and velocity made good (VMG, or the rate you are closing in on
your destination) are displayed at the bottom of the page.
As you head toward the destination, the middle section of the page gives you
visual guidance to your waypoint on a graphic highway, which displays the route
and nearby waypoints on screen. The moving arrow below the highway always
points to the destination waypoint relative to the direction you’re moving. The
line down the center of the highway represents your desired track, while the bottom of the page provides a graphic indication of your crosstrack error (the distance and direction you are off course) according to the scale at the bottom right
of the page.
Whenever the GPSMAP 185 Sounder is in simulator mode, you can adjust your
speed and course from the navigation page using the R keypad. As you head
toward each waypoint in the tour route, try adjusting your boat speed and course
to get a feel for how the highway works.
A
B
A. In this example, our boat is off course to the
left by about 1/8th of a mile (the base of the
highway map is equal to the scale selected at
the bottom right of the page). To get back on
course, steer right.
B. In this example, our boat is off course to the
right. To get back on course, steer left. A digital readout of your exact crosstrack error can
be displayed in any of the six data fields (see
page 47).
15
To adjust the simulated boat speed:
GETTING STARTED
Using the Navigation Page
1. Press the UP arrow of the R keypad to increase the speed in 5 knot/kph/mph increments. Press the DOWN arrow to decrease the speed in the same increments.
To steer the boat:
1. Press the LEFT and RIGHT arrows of the R keypad.
Notice that as you get off course, the highway and waypoint pointer move to
give you graphic guidance to get back on course. The scale in the lower right corner of the page represents the total distance (or the width) of the base of the highway display. The default graphic highway setting is 1/4 nm, but can be set for a
1/2-, 1-, 2- or 4-nm range.
To change the highway scale display:
1. Press either the C or D key to increase or decrease the map scale.
A
B
A. To reset the simulator to steer the desired
course automatically, select the ‘Auto COG’ setting from the options page.
B. The highway scale can be set to a 1/4-, 1/2-, 1-,
2-, or 4-nm/mi/km range with the ZOOM keys.
The navigation page data fields may also be configured to display any of eight
different navigation information categories. Let’s change the ETE field to ETA
(estimated time of arrival).
To change a data field:
1. Press the O key to display the position page options.
2. Highlight the ‘Change Data Fields?’ option and press T. The field highlight will now
appear in the top-left data field (the COG field).
3. Use the R keypad to move the field highlight to the ETE field and press T.
4. Highlight the ‘ETA’ option and press T, and press Q to finish.
Now that you’ve seen the five main pages, let’s look at the active route page,
which appears in the main page sequence whenever you are navigating a route:
1. Press the J key.
16
The active route page shows each waypoint of the active route in sequence,
with the waypoint name, distance and estimated time enroute to each waypoint
displayed. As you navigate the route, the active route list will be automatically
updated, indicating the next destination waypoint.
GETTING STARTED
Active Route Page
The active route page also provides quick access to many route activation, editing and copying functions you’ll use most often, like inverting and deactivating
the active route. Let’s go ahead and deactivate the active route.
To deactivate the active route and stop navigation:
1. Press the O key.
2. Highlight the ‘Deactivate Route?’ option.
3. Press T to confirm.
To reset the boat speed to zero:
1. Press the O key.
2. Highlight the ‘Setup Simulator?’ option.
3. Press T.
4. Press T to access the SOG field.
5. Press the LEFT arrow of the R keypad to clear the speed entry.
6. Press T.
As you’ve seen, the primary pages provide status, position, fishfinding, navigation and map information. The tour’s last page is the main menu page, which
allows access to the GPSMAP 185 Sounder’s waypoint, route and planning functions, as well as various operational and navigation setup features.
The main menu is available from any page, and is accessed through the O key.
A
B
A. To stop navigating the active route, select the
‘Deactivate Route?’ option and press
EDIT/ENTER.
B. Use the left arrow key to clear the SOG field
and press EDIT/ENTER to confirm.
To access the main menu page:
1. Press the O key twice.
17
GETTING STARTED
Main Menu/Track Log
The main menu page’s 11 submenus are divided into categories by function.
You can select a particular submenu by simply highlighting the desired option and
pressing T. To get a feel for how the main menu page works, let’s clear out the
track log we’ve created during our simulated tour. This will ensure that you have a
clean slate once you start navigating in your home waters.
To select the track submenu:
1. Highlight the ‘Track’ menu option and press T.
The track log page allows you to specify whether to record a track plot and
define how it is recorded. It also provides both an indicator of the total memory
used and the individual functions to clear the track log and start a TracBack route.
To delete the track log:
1. Highlight the ‘Delete Track’ option and press T. A confirmation page will appear.
2. Highlight the ‘Yes’ prompt and press T to confirm.
3. Press J to return to the main page sequence.
A
B
A. The GPSMAP 185 Sounder’s track page lets you
clear the track log and start a TracBack route.
B. To delete the track log, confirm the warning
page by highlighting the ‘YES’ prompt and
pressing EDIT/ENTER.
18
Congratulations! You’ve now gone through the basic operation of the GARMIN
GPSMAP 185 Sounder. Your new digital chartplotter is a powerful tool with many
advanced features not covered in the Getting Started tour. For detailed instructions
on using these features or performing a specific task, please refer to the quick reference guide or the appropriate reference section of this manual.
GETTING STARTED
Power Off
SECTION
1
To turn the GPSMAP 185 Sounder off:
1. Press and hold the P key for about 3 seconds, until the screen is blank.
The next section of the manual describes the pages and functions of the
GPSMAP 185 Sounder in detail. If you are unable to locate a specific option or
function, please refer to the index on pages 96-98.
Thank you for choosing the GARMIN GPSMAP 185 Sounder navigation and
depth sounding unit. We hope that it will be a useful tool for you wherever you
drop a line.
19
SECTION
1
Status Page
STATUS PAGE
Status Field
Satellite
Sky View
Receiver Status
Horizontal Accuracy
Dilution of Precision
Signal Strength
Indicators
Status Bar
A
B
A. Whenever the GPSMAP 185 Sounder is searching
for satellites, no signal strength bars will appear.
B. Once the receiver has found the satellite(s) indicated, a hollow signal strength bar will appear.
After satellite data has been collected, the signal
strength bars will become solid.
20
The GPSMAP 185 Sounder status page provides a visual reference of various
receiver functions, including current satellite coverage, receiver operating mode
and current receiver accuracy. The status information will give you an idea of
what the receiver is doing at any given moment.
The sky view and signal strength bars give you an indication of what satellites
are visible to the receiver and whether or not they are being tracked. The signal
strength is shown on a bar graph for each satellite, with the satellite number
below. When a satellite is visible but not being tracked, the strength bar will not
be shown and the sky view indicator will not be highlighted.
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
(track up), the inner circle 45º above the horizon, and the center point a position
directly overhead. Use the sky view to determine if there are obstructions shading
your reception of GPS signals.
Receiver Status, EPE & DOP
STATUS PAGE
Receiver status is indicated at the top of the page, with the current estimated
position error (EPE) and dilution of precision (DOP) to the left of the sky view.
DOP is an indication of satellite geometry quality measured on a scale of one to
ten (lowest numbers the best, highest numbers the poorest). EPE uses DOP and
other factors to calculate a horizontal position error in feet or meters. The status
field will show one of the following conditions:
Receiver Status
SECTION
1
• Searching the Sky— the receiver is looking for any satellites.
• AutoLocate— the receiver is is looking for any satellite whose almanac has been collected. This process 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 position, but has not collected enough data to calculate a fix.
• 2D Navigation— at least three satellites with good geometry have been acquired and a
2 dimensional position fix (latitude and longitude) is being calculated. ‘2D Differential
Navigation’ will appear when you are receiving DGPS corrections in
2D mode.
• 3D Navigation— at least four satellites with good geometry have been acquired and
your position is now being calculated in latitude, longitude and altitude. ‘3D
Differential Navigation’ will appear when you are receiving DGPS corrections in
3D mode.
• Poor GPS Coverage— the receiver is no longer tracking enough satellites for a 2D
or 3D fix.
• Receiver Not Usable— the receiver is unusable, possibly due to incorrect initialization
or abnormal satellite conditions. Turn the unit off and back on to reset.
• Simulating Navigation— the receiver is in simulator mode.
A
B
A. The status bar at the bottom of the page displays important status, alarm and map scale
information. It also provides on-screen user
and message prompts.
B. The status bar will display an anchor symbol
or ‘PRX’ icon whenever the anchor drag alarm
or proximity alarm has been triggered.
21
SECTION
1
Status Page Options
STATUS PAGE
Options
The GPSMAP 185 Sounder’s status page features a context-sensitive options
page that provides access to functions and features relating to the status page.
To display the status page options:
A
B
A. Whenever the GPSMAP 185 Sounder is in simulator mode, the ‘Setup Simulator?’ option will
appear on the option menu for each of the main
pages.
B. The setup simulator page allows you to define
your speed and course over ground, as well as
your position, altitude, and depth. The ‘Auto
COG’ option will automatically steer the desired
course to your destination. Your speed and
course can also be selected from the navigation
page using the rocker keypad (see page 16).
22
1. Press O.
To select a menu option:
1. Highlight the desired option and press T.
The following options are available:
• Initialize Position?— allows you to initialize the receiver graphically or by text. See
pages 1-2 for instructions on initialization.
• Start AutoLocate?— allows the receiver to locate your position automatically.
• Track Up/North Up SkyView?— allows you to select between a north up or track
up sky view display.
• Setup Simulator?— allows you to define speed, course and position values while in
simulator mode. See the Getting Started Tour for more on using simulator mode.
Position Page
POSITION PAGE
Compass
Tape
Data
Fields
Overview
SECTION
2
Position
Coordinates
Time
of Day
Status Bar
The GPSMAP 185 Sounder position page shows you where you are, what direction you are heading and how fast you are going. The top of the page features a
compass tape to indicate the direction you’re heading (while you’re moving), and
four user selectable data fields: course over ground (COG), speed over ground
(SOG), distance traveled (TRP) and altitude (ALT). The bottom half of the page
displays your present position’s coordinates, along with the time of day as calculated using GPS satellites. The status bar at the bottom of the page indicates position fix status, and is described in detail on page 21.
The units of measure for speed, distance, position and altitude are all userselectable through the navigation setup option on the main menu page. The time
of day, shown in UTC (Universal Time Coordinated, or Greenwich Mean Time)
may be set to display in a 12- or 24-hour time format (with a local offset) through
the system setup option on the main menu page.
The trip odometer can be reset from the position
page options window. To reset the odometer,
select the ‘Reset Trip Distance?’ option and press
EDIT/ENTER.
23
SECTION
2
Position Page Options
POSITION PAGE
Options
The GPSMAP 185 Sounder’s position page features a context-sensitive options
page that provides access to functions and features relating to the position page.
To display the position page options:
1. Press O.
To select a menu option:
1. Highlight the desired option and press T.
The following options are available:
• Reset Trip Distance?— resets the trip odometer (TRP) field to zero.
• Change Data Fields?— allows you to choose the data displayed in the four userselectable data fields. Eight data types are available:
A
B
A. The four data fields at the top of the position
page can be changed by selecting the ‘Change
Data Fields?’ option.
B. Each data field can be set to display speed over
ground, course over ground, distance traveled,
altitude, DC voltage, depth. speed through
water and temperature display are available if
you are using a properly equipped transducer.
24
• SOG— speed over ground
• VDC— DC voltage
• TRP— distance traveled
• STW— speed through water
To change a data field:
• ALT— altitude
• COG— course over ground
• DPT— depth
• TMP— temperature
1. Highlight the ‘Change Data Fields?’ option and press T.
2. Move the field highlight to the field you want to change and press T.
3. Select the desired data field option and press T.
• Restore Defaults?— resets all data fields to the factory settings.
• Setup Simulator?— allows you to define speed, course and position values while in
simulator mode. See the Getting Started tour for more on using simulator mode.
Sounder Page
Data Field
SOUNDER PAGE
Overview and
Range Modes
Range Mode
SECTION
3
Black Line
Fish Icon
Whiteline
Status Bar
The sounder page is where your GPSMAP 185 Sounder becomes a powerful
fishfinder. The top of the screen contains any of thirteen selectable data field
options, while the middle of the page contains a right-to-left moving sonar image
of the water beneath your boat. (Note: 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.) Fish are displayed as a darkened arch or a fish icon in three different
sizes. Thermoclines are shown as shades of gray.
The area of strongest sonar return (or whiteline) is displayed as a solid gray. Typically,
the bottom will be the primary whiteline. A thin whiteline indicates a soft bottom
while a thick whiteline shows a harder bottom. A black line is used to show the
point were the water meets the whiteline. This black line will follow the contour
of the bottom and show any objects of reasonable size. Along the right side of the
screen is an adjustable scale which reflects the depth of the area being displayed.
The status bar at the bottom of the page displays satellite signal status, digital
depth, and any triggered alarms.
A
B
A. The right side of the screen represents the
transducer’s location on your boat. Items
appearing on the right side of the screen were
passed by more recently than those on the
left.
B. The four-level gray LCD screen makes it possible to easily separate sonar targets from
their surroundings.
25
SECTION
3
SOUNDER PAGE
Range Modes
Range Modes
The GPSMAP 185 Sounder uses three depth range modes: auto, manual, and
window. Auto is the default and continually adjusts the screen display to show the
maximum amount of data possible, while always showing the bottom; manual
allows you to adjust the sonar display’s depth with the the R keypad; window
lets you establish a starting depth (top) and length (span) for the sonar display.
Switching Between Ranges and Modes
The R keypad may be used for easy transition between manual and auto
modes. Window mode, however, can only be activated from the sounder options
menu (see page 31).
To switch from auto to manual mode:
1. Press the R keypad up or down until the desired depth range is displayed on the
scale at the right side of the page.
2. Press T to confirm the selected range or Q to return to Auto mode.
A
B
A. Auto mode will show the most information
available while always keeping the bottom
in view.
B. The range scale will be highlighted when
using the arrowkeypad to adjust manual
range mode or when switching between
auto and manual mode.
To adjust manual range or switch from manual to auto mode:
1. Press R keypad up or down until the desired depth range is displayed.
2. Press T to confirm the selected depth.
3. You can easily switch to Auto mode if you press and hold the R up or down until
you hear a repeated beep. ‘Auto’ will be displayed in the function field at the top
right corner of the page.
4. Press T to confirm.
To adjust the window range anytime after initial setup:
1. Press R once in any direction. The window range submenu will appear.
2. Enter values for the ‘top’ and ‘span’ fields and press T.
26
3. When finished press Q.
Sounder Zoom Function
SOUNDER PAGE
The sounder zoom function allows you to see the current display picture at 2
times (2X) and 4 times (4X) magnification. 2X means that the screen displayed will
now cover 1/2 the depth you were originally viewing in twice the detail and 4X
shows 1/4 the original depth at four times the detail. Because less area is being
shown [in a zoom screen] objects can be seen in greater detail.
The sounder zoom function is accessed by using the C key when viewing the
sounder page.The sounder zoom function is divided into four display levels:
Sounder Zoom
SECTION
3
• 2X Split Screen - Shows two reduced-size sonar pictures at the same time. The top
half of the display screen will show the complete sonar picture at its original scale.
The bottom half shows the original picture at 1/2 depth scale.
• 2X Full Screen - Displays the 2X zoomed picture on the full GPSMAP 185 Sounder
screen and does not show the original scale picture.
• 4X Split Screen - Again shows two reduced pictures, with one showing the original
scale and one at 1/4 the original depth scale.
• 4X Full Screen - Displays only the 4X zoomed picture on the full GPSMAP 185
Sounder screen.
Once activated, the zoomed picture replaces the sounder page display. Note: The
zoom function can only be deactivated by using the D key and scrolling up to the
original picture scale. Q will not turn off the zoom function.
The zoom function operates in either auto zoom or manual zoom. Auto zoom will
follow the bottom contour while manual zoom will display the selected depth.
To activate the sounder zoom function:
1. While viewing the sounder page, press the C once. The 2X split screen will be
displayed.
A
B
A. The 2X zoom split screen allows you to view
a smaller portion of the range while continuing to view the complete range.
B. Use the 2X or 4X full screen zoom when you
want to see the zoomed area displayed on the
full screen.
2. Continue to press C to advance to further zoom screen levels.
3. To deactivate the zoom function, press D until the original scale picture appears.
27
SECTION
3
SOUNDER PAGE
Zoom Window
Moving the Zoom Window
Once a zoom window has been activated, the zoom window can instantly be
moved to show a different area. A zoom window indicator bar will be displayed
on the right side of the original-scale picture (top). The bar’s length and position
will correspond to the zoomed picture displayed on the lower half of the screen.
To move the zoom window:
1. Pre ss the R keypad once in any direction to activate the movement function.
The range scale on the right side of the zoomed picture will be highlighted.
2. Press the R keypad up or right to move the window to view a shallower depth
and down or left to view a deeper depth.
3. When the window reaches the desired position, press T to accept or Q to
return to the previous window position.
Underwater Waypoints
A
B
A. Auto zoom will show the most information
possible while continually showing the bottom on each half of the split screen.
B. You can switch from manual to auto mode
even while in the zoom mode, by pressing
and holding the arrow keypad up or down
until you hear a triple beep, and then pressing it once more.
The underwater waypoint feature makes it possible to mark the position and
depth of an object which you might want to return to, such as a stump, underwater ledge, etc. Note: Pressing QUIT returns you to the standard sounder screen.
To mark an underwater waypoint:
1. Press T to pause the moving screen display.
2. Press the R keypad in any direction to activate the on-screen cursor. A data field will
appear with the cursor’s depth, bearing and distance from your current position, and
the waypoint’s coordinates. Since the distance and bearing shown are measured from
the boat to the waypoint, they will change as your boat moves, even if the cursor is stationary. Note: The cursor will not move off of the paused display and cannot show an
area that has scrolled off the screen.
3. Use the R keypad to move the cursor onto the target (stump, etc.) to be marked.
28
4. Press T. A waypoint page will appear listing the waypoint’s coordinates, default
three digit name, and depth.
5. Enter any desired information for the waypoint such as name, comment, etc., and
press T.
SOUNDER PAGE
Underwater Waypoints
and Map/Sounder
Split Screen
6. To resume display movement, press Q or T.
Note: In the event that you only want to find the depth of an object and not
mark it as a waypoint, simply press Q once the depth has been displayed to
return to normal operation.
Map/Sounder Page Split Screen
SECTION
3
The GPSMAP 185 Sounder can be configured to display a split screen display of
a sounder window and map page simultaneously to let you see cartography and
sounder information at the same time. The split screen is activated from the map
page only.
A
To select the map/sounder split screen display option:
1. Press the O key to display the map page options menu.
2. Highlight the ‘Setup Page Display?’ option and press T.
3. Select either of the entries for “Fields & Sounder” and press T.
The split screen map/sounder page functions as only a map page with sounder
window for viewing only. To modify the sounder page, you must push Q, (to
access the sounder page) make any desired changes, and then push J to return
to the map/sounder split screen. Note: For best results, it is recommended that
you maximize the map portion of the sounder/map split screen. See page 40.
B
A. Use the target cursor to mark an underwater
waypoint and press ENTER.
B. Underwater waypoints can be marked while
using the zoom function by following the
same steps used for a non-zoomed screen.
29
SECTION
3
SOUNDER PAGE
Sounder Options
Sounder Page Options
The sounder options page lets you customize the sounder to your needs.
To display the sounder page options:
1. Press O.
The following options are available:
• Sensitivity Adjust?— determines how sensitive the sounder is to sonar echoes. High
sensitivity may show clutter which can conceal fish, while low sensitivity may not
show all fish.
• Chart Speed Adjust?— allows you to select the speed at which the sonar display
scrolls across the screen.
• Whiteline Adjust?— enables you to select how the area of strongest sonar return is
shown. A high setting will cause a thick whiteline while low settings show a thin
whiteline.
To change the sensitivity, chart speed, or whiteline:
1. Highlight the specific option and press T.
A
B
A. Use the sounder options page to change the
sounder page display to fit your needs.
B. Three range modes may be selected.
2. The operating display field in the upper right corner of the screen will be highlighted. Use the R keypad to select the desired value and press T.
• Set Range Mode?— allows you to select from auto, manual, or window modes.
To set the range mode:
1. Highlight the ‘Set Range Mode?’ option and press T.
2. Choose the desired mode and press T. Nothing further is required to activate
auto or manual modes. Window range mode, however, will require setup for firsttime use or to change the existing window values.
3. Press the R keypad once in any direction to display a window range definition
field. Enter a value for the TOP (depth at which the window will start) and the SPAN
(length it will cover).
4. To finish press Q. Note: Previous window range values will be used whenever
window range is activated unless changed from the window range definition field.
30
• Setup Page Display?–– allows you to select the fields displayed in the data section of the
sounder page. The following options are available:
• 1 Field
• 1 Field & Compass
• 1 Field & CDI
• 3 Fields
SOUNDER PAGE
• 3 Fields & Compass
• 3 Fields & CDI
• 5 Fields
Sounder Options
SECTION
3
To change the page display:
1. Highlight the ‘Setup Page Display?’ option and press T.
2. Highlight the desired field and press T.
3. Select a page display option and press T.
• Change Data Fields?— allows you to specify the data displayed in each data field used
on the sounder page. The following options are available:
• BRG- bearing to active waypoint
• DIS- distance to active waypoint
• SOG- speed over ground
• COG- course over ground
• ETE- estimated time enroute
• ETA- estimated time of arrival
• XTK- crosstrack error
• VMG- velocity made good
• TRN- turn angle to waypoint
• VDC- DC voltage
• DPT- depth
• TMP- temperature (transducer option)
• STW- speed through water (transducer option)
To change a data field:
1. Highlight the ‘Change Data Fields?’ option and press T.
2. Move the field highlight to the desired field and press T.
A
B
A. The sounder page can be configured to display up to five data fields simultaneously.
B. Any of thirteen information options may be
shown in a designated data field.
3. Select a data field option and press T.
4. When finished press Q.
• Restore Defaults?— resets all sounder page options to the factory settings, except the
sounder setup page options. Restoring defaults on the sounder
setup page is addressed in the sounder setup page options
menu (See page 35).
31
SECTION
3
Sounder Setup
SOUNDER PAGE
Sounder Setup
The next sounder page menu option is ‘Sounder Setup?’. This option allows
you to setup the sounder for your specific needs. Five operational settings/functions may be accessed: fish ID, water type, noise rejection, keel offset, and speed
calibration.
To access sounder setup:
1. Highlight the ‘Sounder Setup?’ option and press T. The sounder setup page will
appear.
• Fish ID— determines how the GPSMAP 185 Sounder identifies and labels
sonar targets on the viewing screen. Three settings are available:
• Off–is the default setting and shows all sonar target information as
arches.
• On–shows small, medium, or large fish icons in place of arches
and displays other echo information (thermoclines, thin stumps,
etc.) as shades of gray.
A
B
• Fish Only–shows fish icons.
To select fish ID:
A. The ‘Off’ fish id setting is the default setting
and will display raw sonar data and show all
targets as arches.
B. The depth of each target is displayed by setting the ‘TARGET DEPTH’ field to ‘On’.
1. Highlight the ‘Fish ID’ option and press T. The fish id submenu will appear.
2. Highlight the desired setting and press T.
• Target Depth–Displays the digital depth of each fish icon.
• On–shows fish icons with digital depth.
• Off–does not display depth.
To select target depth:
1. Use the R keypad to highlight the target depth field and press T. A corresponding submenu will appear.
32
2. Highlight your submenu selection and press T.
• Water Type - Maximizes the sounder’s operation in cold, cool, or warm water and
salt or freshwater. Has one field for water temperature and one for water composition. Set the water temperature option to ‘Cold’ if the water is below 40ºF, ‘Cool’ if
it is between 40º- 80ºF, and ‘Warm’ if it is above 80ºF. Set the water composition
field to salt or freshwater depending on where you are fishing.
SOUNDER PAGE
Sounder Setup
To select water temperature or composition:
SECTION
3
1. Use the R keypad to select either the temperature or water composition field and
press T. A corresponding submenu will appear.
2. Highlight your submenu selection and press T.
• Noise Rejection - Removes cross talk from other sounders or ignition noise due to
poor boat motor installation (non-shielded plugs, etc.). The ‘AUTO’ setting is the
default and identifies the presence of crosstalk noise, and turns rejection on when it
needs to. When the noise disappears, it turns the rejection off. The ‘OFF’ setting prevents the unit from removing any perceived noise from the display. The ‘ON’ setting
removes anything the unit thinks is cross talk noise and attempts to “repair” the damage done by suspected interference with real echoes.
To set noise rejection:
1. Highlight the “Noise Rejection” field and press T. A submenu will appear.
2. Select from OFF, AUTO, or ON and press T.
• Keel Offset - allows you to set the point from which the GPSMAP 185 Sounder will
measure depth. This makes it possible to measure depth from the bottom of your keel
instead of from the transducer's location. A positive number will measure depth from
a deeper point while a negative number reflects a shallower point.
A
B
A. The correct temperature setting will ensure
that the sounder gives more accurate depth
measurements.
B. Use the noise rejection feature to minimize
interference from nearby electronics.
To set keel offset:
1. Highlight the “Keel Offset” field and press T. Use the R to enter the keel
offset value and press T.
33
SECTION
3
SOUNDER PAGE
Sounder Setup and
Calibration
• Speed Calibration - If you are using a transducer equipped to display speed through
water (STW), calibration is required to ensure that the STW displayed by your
GPSMAP 185 Sounder will be accurate. The unit may be calibrated automatically or
manually, but auto calibration is recommended and is the default setting.
To calibrate the unit:
1. Press the O key to display the sounder options page.
2. Using the R keypad, highlight ‘Sounder Setup?’ and press T.
3. Choose between auto and manual calibration.
To use Auto Calibration:
1. Ensure ‘Auto Calibrate?’ is displayed in the speed calibration field. If it is not, press
O to display the calibration menu.
2. Highlight ‘Auto Calibrate’ and press T.
3. Press T again and an instruction message will appear.
A
B
A. Calibration is required to use the GPSMAP
185 Sounder with a transducer equipped for
accurate speed through water readings.
B. Follow instructions for auto calibration
carefully.
34
4. After reading the instructions, and when you are ready to begin the calibration,
press T.
5. Slowly accelerate your boat to a maximum safe cruising speed and then back
down to a stop and press T.The minimum and maximum speed which the unit
is now calibrated for will be displayed in the ‘calibrated range’ field.
6. Auto calibration is complete.
When manual calibration mode is selected, the speed calibration bar will
appear as a white horizontal strip, with a black slider bar positioned in the
middle.
Before entering the calibration, you will need to compare the value shown on
the speed calibration field’s STW display, with your boat’s actual speed as determined by the speedometer or by using a stop watch. Accelerate to a safe speed
and compare the two speed readings.
To use Manual Calibration:
SOUNDER PAGE
Sounder Setup and
Calibration
SECTION
3
1. Ensure manual calibration mode is selected in the speed calibration field, if not,
press O, highlight ‘Manual Calibrate?’, and press O.
2. Press T. The slider bar will turn black and the calibration range bar will turn to
white.
3. Use the R keypad to move the selector bar until the speed displayed in the ‘STW’
field matches the speed of your boat. Move the bar to the left for negative values
and right for positive values.
4. When the desired speed is displayed, press T.
5. Press Q to return to the sounder page.
Two options may be accessed from the sounder setup options menu: ‘Manual or
Auto Calibration’ (whichever one currently is not selected) and ‘Restore Defaults’.
Access the options menu by pressing O, select an option, and press T.
• Setup Simulator?— This sounder page option will appear only when the unit is in
simulator mode. It allows you to define simulator speed, course, altitude, depth, and
position values. See the Getting Started Tour for more on the simulator .
A
B
A. The ‘Setup Simulator?’ option is included in
the options menu for each of the five main
pages when in simulator mode.
B. Each simulator data field may be modified to
display user-selected values and navigational
information.
35
SECTION
4
MAP PAGE
Map Page
Data
Window
Overview
Boat
Icon
Status
Bar
A
B
A. Use the cursor to pan ahead to other map
areas. The map display will automatically
scroll forward when you reach the edge of the
map.
B. To select or ‘highlight’ an on-screen navaid or
waypoint, simply move the cursor over the
waypoint symbol. The cursor will ‘snap’ to
the waypoint, and display its name and position in the data field.
36
Map
Scale
The GPSMAP 185 Sounder’s map page provides a comprehensive display of
electronic cartography, plotting and navigational data. The map display shows
your boat on a digital chart, complete with geographic names, navaids, depth contours and a host of other chart features. It also plots your track and displays any
routes and waypoints you create. An on-screen cursor lets you pan and scroll to
other map areas, determine the distance and bearing to a position, and perform
various route and waypoint functions.
The data window, located at the top of the page, provides a user-selectable display of your current course and speed over ground, along with the bearing and
distance to a destination waypoint. Whenever the cursor is active, an additional
data window will appear below to indicate the position, range and bearing to the
cursor or a selected waypoint or navaid. Each data field may be configured to display any one of thirteen data options. The data window may also be changed to
display additional data fields, a compass tape, or a CDI scale. The status bar at the
bottom of the page displays the map scale currently in use.
Map Modes
MAP PAGE
The map display uses the cursor keypad and a set of hard keys to control most
map display functions. The C and D keys, combined with the R keypad, let
you select zoom ranges and move the cursor. Two basic map operating modes,
position mode and cursor mode, determine what cartography is shown on the
map display. Position mode pans the cartography to keep the present position
marker within the display area, while cursor mode pans the cartography to keep
the cursor within the display area.
The GPSMAP system will always power up in the position mode, with your
vessel centered on the map display.
Map Modes
SECTION
4
• Whenever sufficient map coverage is not available to keep the boat centered, the
boat icon will move toward the edge of the display.
• If the boat icon attempts to go off the display, the zoom level may need to be
adjusted to keep cartography on screen.
Whenever the R keypad is pressed, the GPSMAP 185 Sounder will enter cursor mode. In cursor mode:
• The cursor can be moved over the map display using the R keypad.
• Whenever the cursor reaches the edge of the display, the map will scroll
forward under the cursor. Keep in mind that the boat icon will move with the map
scrolling and may go off the display screen (you may not be able to see your present
position).
A
B
A. Position mode on inland water cartography.
B. Cursor mode on inland water cartography.
• When the cursor is stationary, a fixed coordinate position will appear in the position field. Note that the distance and bearing will change as the boat’s position
changes.
• Whenever you zoom in cursor mode, the cursor will be centered on screen.
• To return to position mode, press the Q key.
37
Using the Cursor
SECTION
4
MAP PAGE
Using the Cursor
The cursor allows you to pan away from your present position and scroll
to other map areas around the world (even outside of your current Micro G-chart
coverage). As you pan past the edge of the current map display, the screen
will actively scroll forward to provide continuous map coverage.
To move the cursor:
1. Press the R keypad to move the cursor in an up, down, left or right direction.
As you move the cursor, the distance and bearing from your present position to
the cursor will be displayed in the data window, along with the cursor’s position
coordinates. Keep in mind that when the cursor is stationary, the distance and
bearing from your present position will change as your boat moves. The cursor
may also be used to ‘snap’ to on-screen waypoints and navaids, allowing you to
review a selected position directly from the map display.
To select an on-screen waypoint or navaid with the cursor:
A
B
A. To create a new waypoint at the cursor, move
the cursor to the desired position and press
EDIT/ENTER.
B. The create new waypoint page will appear,
where you may change the waypoint name,
symbol and comment before saving the waypoint.
1. Use the R keypad to move the cursor to the desired waypoint or navaid (if there are
several waypoints grouped closely together, zoom in closer for a better view).
2. When a waypoint or navaid is selected, it will become highlighted on screen, with the
name and position displayed.
To eliminate the cursor and re-center your position on-screen:
1. Press the Q key.
The cursor may also be used to create new waypoints directly from the map.
To create a waypoint with the cursor:
1. Use the R keypad to move the cursor to the desired map position.
2. Press T.
38
3. Press T to confirm the new waypoint using the default three-digit name.
Selecting Map Scales
MAP PAGE
The map display has 16 available range scales from 1/8th to 4096 n.m. (1/4 to
7500km). The map scale is controlled by the C and D keys, with the current
scale displayed at the bottom of the data window.
Selecting Map Scales
To select a map scale:
SECTION
4
1. Press the D key to zoom out and the C key to zoom in.
The GPSMAP 185 Sounder’s system has a built-in worldwide database to 64
n.m.(see Appendix D for a built-in coverage map), with more detailed coverage
available through the use of Micro G-chartTM data cartridges (see pages 80-81 for
installing and using Micro G-chartTM cartridges). The GPSMAP 185 Sounder will
display cartography as long as there is chart information available for the range
you’ve selected. Map coverage will conform to the following conditions:
• When the selected zoom range is covered by either the internal database or a
Micro G-chart data cartridge, cartography will be displayed.
• When the selected zoom range is covered by both the internal database and
a Micro G-chart cartridge, cartography will be displayed using the data with the
best resolution.
• When the selected zoom range exceeds the resolution of the chart in use by
up to two settings, overzoom cartography will be displayed. The display
will not show any filled landmass areas, and an ‘Ovr Zm’ warning will appear
in the scale field. The lat/lon grid will also be turned on regardless of the map
configuration setting.
• When the selected zoom range exceeds the resolution of the chart in use by more
than two settings, all cartography will be replaced by a track plot display, and a ‘No
Map’ warning will appear in the scale field. The lat/lon grid will be displayed
regardless of the map configuration setting. Additional caution should be used
while navigating in track plot mode.
A
B
A. Whenever the selected map scale exceeds the
resolution of the chart by up to two settings, an
‘Ovr Zm’ warning will appear in the scale field.
B. Whenever the selected map scale exceeds the
resolution of the chart by more than two settings, a ‘No Map’ warning will appear in the
scale field.
39
Map Page Options
SECTION
4
MAP PAGE
Map Page Options
The GPSMAP 185 Sounder map page is designed to be a flexible tool that can
be custom-tailored to your exact navigation needs. The map options page provides access to many of the features and functions that will help you configure the
map page to your own preferences.
To display the map page options:
1. Press O.
To select a menu option:
1. Highlight the desired option and press T.
The following options are available:
• Maximize/Normal Map?— allows you to select between a full-screen map display
or the default map display with data window.
• Map Outlines Off/On?— allows you to specify whether coverage outlines for
Micro G-chart cartography are displayed or not. The default setting is on.
A
B
A. The map options page provides access to all
map configuration, page display and data
field options.
B. The ‘Maximize Map?’ option will eliminate
the data fields and show full-screen cartography.
• Measure BRG/DIS?— allows you to measure the bearing and distance between any
two points on the map display.
To measure the BRG/DIS between two points:
1. Highlight the ‘Measure BRG/DIS?’ option and press T. An on-screen pointer
will appear on the map display at your present position.
2. Move the cursor to the desired reference point (the point that you want to measure from) and press T.
3. Move the cursor to the point that you want to measure to. The bearing and distance from the reference point will be displayed at the bottom left of the data window.
4. Press the Q key to finish.
40
• Configure the Map?— allows you to determine what chart features are displayed on
a particular map scale to prevent excessive clutter. The map configuration page features an on/off grid with a list of chart features down the left side. The zoom scales
are displayed across the top of the grid with the chart scale currently in use also
indicated. The far-left scale setting represents all map scales 64 nm and above. A
check mark in a grid box indicates that the chart feature listed will be displayed at
the corresponding scale.
MAP PAGE
Map Configuration
SECTION
4
Individual grid boxes may be turned on and off through a popup scale window,
while entire rows may be controlled by using the map configuration options page
(accessible through the O key).
To use the map configuration grid:
1. Use the R keypad to select the desired map item and press T.
A popup window will appear with the current settings displayed.
2. Use the R keypad to highlight the scale you want to change.
3. Press T to change the on/off setting.
4. Press Q to finish.
To turn an entire row on or off:
1. Use the R keypad to select the desired map item.
2. Press the O key.
3. Select the ‘Enable Row?’ or ‘Disable Row?’ option and press T.
The map configuration page also allows you to set the moving map display to a
North Up, Track Up or Desired Track Up orientation.
To change the map orientation:
A
B
A. The map configuration grid allows you to define
what items appear on the display at each map
scale.
B. To turn an entire row on for the selected map
item, highlight the ‘Enable Row?’ option and
press EDIT/ENTER.
1. Use the R keypad to highlight the’ Orientation’ field and press T.
2. Select the desired setting and press T.
41
SECTION
4
MAP PAGE
Map Configuration
& Map Colors
The map configuration options page also features a map calibration function that
allows you to calibrate the map display with your exact physical surroundings or
correct data from older charts. Before using the map calibration function, check to
make sure that your map datum selected on the GPS matches the datum on the
chart you are using (see page 76). To calibrate the map display, you must know
exactly where you are, and understand that the correction is generally valid only in
a limited range from the point of correction.
Map calibration should only be performed while the vessel is not moving, and
should never be used to attempt SA corrections, which can degrade accuracy up to
330’ (100 meters). The maximum correction is 16,400 feet (5000m).
To calibrate the map:
1. Select the ‘Calibrate the Map?’ option and press T.
2. Use the R keypad to move the arrow cursor from the satellite
position (indicated by the satellite icon) to your exact position. The bearing, distance and position will be indicated in the data window.
3. Press T to confirm the calibration offset.
A
B
A. To calibrate the map, highlight the ‘Calibrate
the Map?’ option and press EDIT/ENTER.
B. A satellite icon will remain on the map to
indicate the GPS position, while the boat
marker will reflect the calibration changes.
CAUTION!
The map calibration function should never be
used to attempt corrections to Selective
Availability errors.
42
The next option available from the map configuration page is the set map colors
option, which allows you to define the fill color (grayscale) of the land and water
used on the map display. Three options are available: no color (no fills for land or
water), gray land/white water (the default setting), and white land/gray water.
To select a map colors option:
1. Select the ‘Set Map Colors?’ option and press T.
2. Highlight the desired map color option and press T.
The map configuration options page also features a ‘restore defaults’ function that
can be used to quickly restore all map configuration options to the factory settings.
To restore the map configuration options to the factory defaults:
1. Highlight the ‘Restore Defaults?’ settings and press T.
• Setup Page Display?— allows you to specify the fields displayed in the data window
section of the map page by selecting one of the following display options:
MAP PAGE
Page Display
& Data Fields
Note: The last two display options make it possible to display both the map page
and sounder page simultaneously as a split screen. The top half of the page will
show a reduced-size map page while the sounder page be displayed in the lower
half of the screen. The sounder page portion of the split screen is only for viewing
and cannot be accessed in this mode. To modify or access the sounder page display,
press Q or J until the actual sounder page appears, make any desired
changes, and then return to the split screen map page.
• 2 Fields
• 2 Fields & Compass
• 2 Fields & CDI
• 4 Fields
• 4 Fields & Compass
• 4 Fields & CDI
• 6 Fields
• 6 Fields & Compass
• 6 Fields & CDI
• 8 Fields
• 2 Fields & Sounder
• 4 Fields & Sounder
To select a page display option:
A
SECTION
4
B
A. The map page can be configured to display a
variety of navigation data.
B. Each data field can be set to display one of 13
data options.
1. Highlight the ‘Setup Page Display?’ option and press T.
2. Select the desired option and press T.
43
SECTION
4
MAP PAGE
Options
• Change Data Fields?— allows you to specify the data displayed in each data field
used on the map display. The following options are available:
• BRG- bearing to active wpt
• SOG- speed over ground
• ETE- estimated time enroute
• XTK- crosstrack error
• TRN- turn angle to wpt
• DPT- depth
• STW- speed through water
• DIS- distance to active wpt
• COG- course over ground
• ETA- estimated time of arrival
• VMG- velocity made good
• WPT- active wpt name
• TMP- temperature
To change a data field:
1. Highlight the ‘Change Data Fields?’ option and press T.
2. Move the field highlight to the desired field and press T.
3. Select a data field option and press T.
• Restore Defaults?— resets all map page options (except map configuration options,
see pages 41-42) to the factory settings.
• Setup Simulator?— allows you to define simulator speed, course, altitude, depth,
and position values.
See the Getting Started Tour for more on the simulator mode.
44
GPSMAP 185 Sounder Navigation Page
Compass
Tape
NAVIGATION PAGE
Data
Fields
Graphic
Highway
Pointer to
Waypoint
Overview
SECTION
5
CDI
Scale
Whenever a GOTO, MOB, TracBack or route has been activated, the GPSMAP
185 Sounder will provide digital and graphic steering guidance to the destination
with the navigation page. The top half of the nav page features four user-selectable
data fields that display the bearing (BRG) and distance (DIS) to waypoint, along
with your current course (COG) and speed over ground (SOG). In addition, there
is a moving compass tape to indicate the direction you’re heading. Two additional
data fields at the bottom of the page show the estimated time enroute (ETE) and
velocity made good (VMG) to your destination.
The middle 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, while a graphic indication of the distance and direction you are off
course is shown on a scale at the bottom right of the page (the selected scale represents the distance from side to side). The arrow pointer below the highway always
points to the destination waypoint relative to the direction you are moving.
The navigation page can be configured to show
the active waypoint, all route waypoints and/or
nearby waypoints on the graphic highway.
45
SECTION
5
A
NAVIGATION PAGE
Highway Scale &
Nav Page Options
B
A. To change the highway scale perspective, press
the ZOOM keys.
B. The navigation options page lets you set up the
navigation page to your own preferences.
As you head toward your destination, the highway perspective will move to
indicate your progress to the waypoint and which direction you should steer to
stay on course. If you are navigating a route, the navigation page will show each
route waypoint in sequence, with the active leg indicated by the white portion of
the highway. Nearby waypoints not in the active route will also be displayed. The
highway perspective scale may also be zoomed in or out to display a larger or
smaller view of the highway. Five settings are available from 1/4 to 4 nm, with a
default setting of 1/4 nm.
To change the highway perspective scale:
1. Press the C or D key to select the desired setting.
Navigation Page Options
The GPSMAP 185 Sounder’s navigation options page allows you to define the
nav data fields and select what waypoints are displayed on screen.
To display the navigation page options:
1. Press O.
To select a menu option:
46
1. Highlight the desired option and press T.
The following options are available for the navigation page:
• Change Data Fields?— allows you to define the data displayed in any of the six
user-selectable data fields. Thirteen data options are available:
• BRG
• SOG
• ETE
• XTK
• CTS
• DIS
• COG
• ETA
• VMG
NAVIGATION PAGE
Options
• DPT
• STW
• TMP
• TRN
SECTION
5
To change a data field:
1. Highlight the ‘Change Data Fields?’ option and press T.
2. Highlight the field you want to change and press T.
3. Select the desired data field option and press T.
• Configure Highway?— allows you to select what waypoints are shown on the highway display. Four options are available:
• Nav & Nearest Waypoints— all route and nearest waypoints displayed
• Nav Waypoints— only waypoints in the active route will be displayed
• Active Waypoint— only the active waypoint will be displayed
• No Waypoints— no waypoints will be displayed
To configure the highway display:
1. Highlight the ‘Configure Highway?’ option and press T.
2. Select the desired option and press T.
• Restore Defaults?— resets all navigation page options to the factory settings.
• Setup Simulator?— allows you to define simulator speed, course, altitude, depth,
and position values . See pages 4-19 for more details on using simulator mode.
A
B
A. Thirteen data options are available for each
data field on the navigation page. The digital
crosstrack error option is especially useful to
display the exact distance you are off course
in feet/miles or meters.
B. To select what waypoints appear on the
graphic highway, highlight the desired setting
and press EDIT/ENTER.
• Auto COG?— allows you to reset automatic steering while simulating navigation
and cancel any course adjustments made with the R keypad.
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A
MAIN MENU PAGE
Overview
B
Main Menu Page
The GPSMAP 185 Sounder’s main menu page provides access to various waypoint, system, navigation and interface management and setup menus. The main
menu page is available from any page in the GPSMAP 185 Sounder’s system, and is
accessed through the O key.
To access the main menu page:
1. Press O twice.
A. The waypoint category options on the main
menu page are described in the Waypoints section on pages 55-59.
B. The routes category options are described on
pages 62-69.
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The 11 submenus are divided into categories by function.
To select a submenu from the main menu page:
1. Highlight the submenu you want to view and press T.
For specific instructions on using a submenu, see the waypoints, route or setup
sections of this manual.
Creating and Using Waypoints
WAYPOINTS
The GARMIN GPSMAP 185 Sounder stores up to 250 alphanumeric waypoints
with a user-defined icon and comment available for each waypoint. Waypoints can
be created using three basic methods:
Creating Waypoints &
MARK Key
• M key– used primarily for marking your present position, the M key
also provides options that allow you to select a map or navaid position from
the map display.
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• Graphically– allows you to define a new waypoint position from the map or
sounder display using the cursor.
• Text Entry– allows you to enter a new waypoint’s position coordinates manually (from a chart, etc.) or by referencing it’s bearing and distance from a
stored waypoint or your present position.
Mark Key
The GARMIN GPSMAP 185 Sounder’s M key lets you quickly capture your
present position— or cursor or navaid position— in order to create a new waypoint. You must have a valid position fix to mark your present position.
To mark your present position:
1. Press the M key. The mark position page will appear, with a default three-digit name
for the new waypoint.
2. To accept the waypoint with the default name, symbol and comment (the depth at the
waypoint’s position), press T to confirm the ‘Done?’ prompt.
3. To enter a different name, symbol or comment, highlight the appropriate field and press the
T key.
4. After entering and confirming your changes, move the field highlight back to the ‘Done?’
prompt and press T.
A
B
A. The mark key is used primarily to mark your
present position, but it can also be used to
mark the cursor or a navaid position from the
map page.
B. The mark position page also allows you to
add the new waypoint to the end of any
route. If you’re heading out without a
planned route, you can create a series of waypoints along the way with the mark key and
save them to an open storage route. When
you’re ready to head back, simply invert the
route to get back (see page 66).
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7
A
WAYPOINTS
Using the MARK Key
The mark key may also be used on the map page to mark the cursor position or
an on-screen navaid. To mark a navaid, select the desired navaid with the cursor.
The GPSMAP 185 Sounder will use the navaid text shown on the cartography as
the default comment.
B
A. To create a waypoint at an on-screen navaid,
move the cursor over the desired navaid.
B. Press the MARK key and select the ‘Use Navaid
Posn?’ option. Press EDIT/ENTER to finish.
To mark the cursor or navaid position with the M key:
1. Use the R keypad to move the cursor to the desired position or navaid.
2. Press the M key.
3. Highlight the ‘Use Map Posn?’ or the ‘Use NAVAID Posn?’ option and press T.
4. To accept the waypoint with the default name, symbol and comment (the depth at that
position), press T.
5. To enter a different name, symbol or comment, highlight the appropriate field and press the
T key.
6. After entering and confirming your changes, move the field highlight back to the ‘Done?’
prompt and press T.
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Creating Waypoints Graphically
WAYPOINTS
Waypoints may also be quickly created from the map display, which allows you
to ‘point and shoot’ at any map position to create a new waypoint.
Creating Waypoints
Geographically & By Text
To create a new waypoint graphically:
1. Use the R keypad to move the cursor to the desired map position. If you want to create
the new waypoint at an on-screen navaid, highlight the navaid on the map display.
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7
2. Press T.
3. To accept the waypoint with the default name, symbol and comment, press T. If you
are creating a waypoint at an on-screen navaid, the default symbol and comment will
automatically reflect the selected navaid’s name and symbol.
4. To change the name, symbol or comment, highlight the appropriate field and press T.
5. After entering and confirming your changes, move the field highlight back to the ‘Done?’
prompt and press T.
Creating Waypoints By Text Entry
Waypoints may also be created by manually entering a position’s coordinates or
referencing a stored waypoint through the ‘Create Waypoint’ submenu option on
the main menu page.
To create a new waypoint by manually entering its coordinates:
1. Press O twice to display the main menu page.
2. Highlight the ‘Create Waypoint’ option and press T. The waypoint definition page will
appear, with the next available waypoint number and the receiver’s last known position
as the default name and position.
3. Use the R keypad to enter the new waypoint name, icon, position, and comment. Press
T after the last character in each section.
A
B
A. Once a position has been selected graphically,
the create new waypoint page will appear.
Here you can change the waypoint name,
symbol or comment before saving the waypoint.
B. To create a waypoint by text entry, start by
entering the new waypoint’s name.
4. When you have finished entering all your waypoint data, use the R keypad to highlight
the ‘Done’ prompt and press T.
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WAYPOINTS
Creating a Waypoint by
Reference
Reference Waypoints
A new waypoint may also be created without knowing position coordinates by
entering its range and bearing from an existing waypoint or your present position.
The GPSMAP 185 Sounder will then calculate the position coordinates for you,
using the reference selected.
To create a new waypoint using a reference waypoint:
A
B
A. Enter the bearing from the reference waypoint
to the new waypoint in the ‘BRG’ field.
B. Enter the distance from the reference waypoint
to the new waypoint in the ‘DIS’ field.
1. Select the ‘Create Waypoint’ option from the main menu page and press T.
2. Enter the name, icon, and comment, for the new waypoint.
3. Highlight the reference waypoint field and press T.
4. Enter the name of the reference waypoint using the R keypad, or press O to select
the waypoint from the nearest list, waypoint list, or map display. Leave the reference
field blank to use your present position.
5. Press T to begin entry of the bearing from your reference waypoint to the new waypoint position. Enter the bearing and press T.
6. Press T to begin entry of the distance from your reference waypoint to the new waypoint position. Enter the distance and press T. The position for the new waypoint will
automatically be calculated.
7. Highlight the ‘Done’ prompt and press T to finish.
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Reviewing & Editing Waypoints
WAYPOINTS
Once you have created and stored a waypoint, it may be modified, reviewed,
renamed or deleted at any time through the waypoint definition page. The waypoint definition page is available for any stored waypoint by highlighting the
desired waypoint from the map display or selecting it from waypoint or nearest
waypoint lists and pressing the T key once. The waypoint definition page can
also be accessed from the proximity waypoint page by highlighting the desired
waypoint and pressing T twice.
Reviewing & Editing
Waypoints
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7
To access the waypoint definition page:
1. Use the R keypad to highlight the desired waypoint on the map display (or any
waypoint list).
2. Press T to display the waypoint definition page.
From the waypoint definition page, you may change the waypoint symbol,
position coordinates, waypoint comment, or depth for the selected waypoint.
To change the waypoint symbol:
1. Highlight the waypoint symbol field and press T.
2. Use the R keypad to select the desired symbol and press T to confirm.
To change the position coordinates:
1. Highlight the coordinates field and press T.
2. Use the R keypad to edit the coordinates and press T to confirm.
To change the waypoint comment:
1. Highlight the comment field and press T.
2. Use the LEFT arrow of the R keypad to clear the comment field.
3. Use the R keypad to enter a comment (up to 16 characters).
4. Press T to confirm.
A
B
A. The waypoint definition page will appear
whenever a waypoint is selected from the map
or a waypoint list.
B. A 20-character custom comment may be
assigned to every waypoint. The default comment is the depth at the waypoint’s position
for waypoints marked with the MARK button
and underwater waypoints. For all other waypoints (those created with the ENTER button),
the current date will be the default comment.
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WAYPOINTS
Waypoint Definition Page
Options
Waypoint Definition Page Options
The waypoint definition page also features an options page that allows you to
edit the selected waypoint on the map display, rename the selected waypoint or
delete the waypoint from memory.
To display the waypoint definition page options:
1. Press the O key.
To review/edit the selected waypoint from the map display:
1. Highlight the ‘Edit Wpt On Map?’ option and press T.
2. The selected waypoint will appear on the map display, with the waypoint name and
coordinates shown at the top of the map, along with the distance and bearing to the
waypoint from your present position.
3. To move the selected waypoint’s position, press T. A ‘MOVE’ label will now appear
under the cursor arrow.
A
B
A. To review or edit a waypoint on the map display, select the ‘Edit Wpt On Map?’ option.
B. To move the selected waypoint, press
EDIT/ENTER. Use the arrow keypad to select
the new position, and press EDIT/ENTER to
finish.
4. Use the R keypad to move the cursor arrow to the desired position. The cursor’s coordinates, along with the distance and bearing from the waypoint’s position, will be displayed at the top of the map display.
5. Press T to set the waypoint’s new position, and Q to return to the waypoint definition page.
To rename the selected waypoint:
1. Highlight the ‘Rename Waypoint?’ option and press T.
2. Enter the new waypoint name and press T.
3. Press T to confirm the ‘Yes’ prompt.
To delete the selected waypoint:
1. Highlight the ‘Delete Waypoint?’ option and press T.
2. Press T to confirm.
54
Waypoint Submenus
WAYPOINTS
The GPSMAP 185 Sounder’s main menu page features four waypoint submenus
that let you manage a large number of waypoints quickly and efficiently. The submenus also provide a continuously updated nearest waypoints list and a proximity
waypoint alarm function that can be used to define an alarm circle around submerged hazards, shallow waters, etc.
Waypoint Submenus &
Nearest Waypoints
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7
To access the main menu page/waypoint submenus:
1. Press O twice.
The first waypoint submenu is the nearest waypoints list, which shows the nine
nearest waypoints that are within 100 miles of your present position. The nearest
waypoints are continuously updated to your present position, and provide quick
access to the closest points of safety in emergency situations.
To scroll through and review the nearest waypoint list:
1. Highlight the ‘Nearest Waypoints’ option and press T.
2. Use the R keypad to scroll through the list in either direction.
3. Press T to review the highlighted waypoint.
4. To return to the waypoint list, highlight the ‘Done?’ prompt and press T.
5. The field highlight will automatically scroll to the next waypoint. If you want to review
each waypoint, you can scroll through any waypoint list by pressing the T key
repeatedly.
To select a nearest waypoint as a GOTO destination:
1. Use the R key to select the desired GOTO waypoint.
A
B
A. The main menu page features four waypoint
submenus.
B. The nearest waypoint list continuously
updates to show the nine nearest waypoints
to your present position.
2. Press G, followed by T.
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Proximity Waypoints
WAYPOINTS
Proximity Waypoints
The proximity waypoints list lets you define an alarm circle around a stored
waypoint position, and can be used to help you avoid reefs, rocks or restricted
waters. Up to nine waypoints may be listed, with a maximum alarm radius of
99.99 nautical or statute miles or kilometers. If a proximity alarm circle overlaps
with an existing alarm circle, a ‘Proximity Overlap’ message will appear each time
the unit is turned on. If you enter an alarm circle overlap, you will only be alerted
to the closest proximity waypoint.
To enter a proximity waypoint:
1. Highlight the Proximity Waypoint option and press T.
2. Use the R key to highlight the first blank waypoint field and press T.
3. Enter the name of the proximity waypoint using the R keypad, or press O to select
the waypoint from the nearest waypoint list, waypoint list, or map display.
4. Press T to confirm. The distance field will now be highlighted.
5. Press T to begin entry of the proximity radius.
A
B
A. Whenever you enter a proximity waypoint’s
alarm circle, a ‘PRX’ indicator will appear in the
status bar (the alarms option must be set to the
‘On’ position). Once you’ve left the alarm circle,
the proximity indicator will automatically reset.
B. To clear all proximity waypoints, select the
‘Clear All?’ option from the proximity options
page. Finish the deletion by confirming the ‘Yes’
prompt.
56
6. Use the R keypad to enter a distance value (to 99.99 units) and press T.
To turn proximity alarms on or off:
1. Use the R keypad to highlight the alarms on/off field and press T.
2. Select the desired setting and press T.
To remove a proximity waypoint from the list:
1. Use the R keypad to highlight the waypoint to be removed.
2. Press O.
3. Highlight the ‘Clear Alarm?’ field and press T.
4. To clear all proximity waypoints, select the ‘Clear All’ option and press T.
Create Waypoint
WAYPOINTS
The third waypoint submenu available from the main menu page is the ‘Create
Waypoint’ submenu, which allows you to create a new waypoint by manually
entering coordinates. Instructions for using the create waypoint submenu are provided on page 51.
Creating Waypoints/
Waypoint List
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7
Waypoint List
The last waypoint category available from the main menu is the waypoints list,
which displays a master list of all waypoints currently stored in memory. From the
waypoints list, you may review, edit, rename or delete individual waypoints; or
delete all user waypoints. The total number of stored and available waypoints is
displayed at the top of the waypoints page, with the stored waypoints arranged in
numerical/alphabetical order and listed in two columns in the center of the page.
To scroll through and review the waypoint list:
1. Highlight the ‘Waypoints’ option from the main menu page and press T.
2. Use the R keypad to scroll through the list in the desired direction.
3. Press T to review the highlighted waypoint.
4. Press T to return to the list.
To delete an individual waypoint from the list:
1. Use the R keypad to highlight the waypoint to be deleted and press O.
2. Press T.
3. Press the T key to confirm the deletion warning.
To delete all TracBack waypoints or the entire waypoint list:
1. Press the O key to select the options window.
2. Highlight the ‘Delete TracBack’ or ‘Delete All User Wpts?’ option and press T.
A
B
A. The waypoints list displays all waypoints
stored in memory in a two-column format.
Temporary waypoints created by the
TracBack feature are assigned a ‘TXXX’ name
and a footprint symbol.
B. The waypoints list options page lets you
delete individual waypoints, delete TracBack
waypoints or the entire waypoint list.
3. Use the R keypad to highlight the ‘YES’ prompt and press T to confirm.
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8
GOTO/MOB
Selecting a GOTO
Destination
Going to a Destination
The GPSMAP 185 Sounder provides four ways to navigate to a destination:
GOTO, MOB, TracBack and route navigation. The easiest method for selecting a
destination is the GOTO function, which lets you select a destination waypoint
and quickly sets a direct course from your present position. The G key can be
used in three ways: from a list of waypoints, graphically from the map display and
from a list of GOTO options. Pressing the G key once shows a list of all waypoints in memory, from which you can select a single destination waypoint.
To activate a GOTO from the waypoint list:
1. Press the G key.
2. Select a waypoint and press T.
Selecting a GOTO Graphically
A
B
A. Press GOTO once to select a destination from a list
of waypoints.
58
B. Press GOTO twice to select a destination waypoint
with the map cursor. If you are not selecting an
existing waypoint as your destination, a new waypoint named ‘MAP’ will be created. Keep in mind
that the MAP waypoint will be overwritten for each
MAP GOTO. This allows you to navigate to onscreen navaids without permanently storing the
navaid as a waypoint. If you want to save the MAP
waypoint, rename it following the steps on page 39.
Pressing the G key twice allows you to graphically select an on-screen waypoint, navaid or cursor position as a destination. A graphical GOTO may be used
to select one of three options from the map display: an existing waypoint, an onscreen navaid, or a cursor position. If you are selecting a navaid or a new position
as the GOTO destination, the GPSMAP 185 Sounder will automatically create or
move the waypoint named ‘MAP’ at the navaid or map position.
To activate a GOTO from the map display:
1. Press the G key twice.
2. To select an existing user waypoint, highlight the waypoint on screen and press T.
3. To select a navaid, highlight the navaid on screen and press T. The GOTO new waypoint page will appear, displaying the navaid position as a ‘MAP’ waypoint, with the navaid
symbol and text as the default icon and waypoint comment. Press T to save the waypoint and begin navigation.
4. To select a cursor position as your destination, move the arrow cursor to the desired position and press T. The GOTO new waypoint page will appear and display the position as
the ‘MAP’ waypoint. Press T to save the waypoint and begin navigation.
GOTO Key Options
GOTO/MOB
The GOTO options page provides a list of additional GOTO options that let
you start a TracBack route, select a destination waypoint from the nearest waypoints list, select a route to navigate, or cancel the current GOTO destination.
GOTO Options
To display the GOTO options:
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1. Press O.
To select a menu option:
1. Highlight the desired option and press T.
The following options are available:
• Start TracBack?— allows you to create and start navigation of a TracBack route
back to the oldest track log point in memory (see pages 60-61 for more on using
the TracBack function).
• Show All Wpts?— displays the GOTO waypoint list.
• Show Nearest Waypoints?— allows you to select the GOTO destination from a list
of the nine nearest waypoints to your present position.
To select a nearest waypoint as a GOTO destination:
1. Highlight the ‘Show Nearest Waypoints’ option and press T.
2. Select the desired waypoint and press T.
• Select Route?— allows you to quickly select a stored route for navigation.
To select a route to navigate:
1. Highlight the ‘Select Route’ option and press T.
2. Select the desired route and press T.
A
B
A. The GOTO options page lets you start a
TracBack route, select a destination from the
nearest list, select a route to activate, or cancel the current GOTO destination.
B. The nearest waypoints list limits the list to
provide quick access to nearby anchorages,
facilities, etc. which are stored as waypoints.
• Cancel GOTO?— cancels the current GOTO destination and resumes navigation of
any previously selected route.
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8
GOTO/MOB
MOB & TracBack
Navigation
MOB
The GPSMAP 185 Sounder’s man overboard function (MOB) lets you simultaneously mark and set a course to a position for quick response to emergency situations.
To activate the MOB function:
1. Press the B key.
2. Press the T key to confirm and begin navigating to the MOB position.
Once a MOB has been activated, a MOB icon will appear on the map display,
and the destination field on the map page will display the bearing, distance, and
ETE to the MOB position based on your present speed and course.
To stop navigation to the MOB position:
1. Press the G key, followed by O, to display the GOTO options page.
2. Select the ‘Cancel GOTO’ option and press T.
A
TracBack Navigation
B
A. The GPSMAP 185 Sounder’s MOB mode can be
used to set a course to a passing spot for quick
response to emergency situations, fish strikes,
etc.
B. To define a starting point for a TracBack route,
clear the track log.
The third method of navigating to a destination is by using the GPSMAP 185
Sounder’s TracBack feature. The TracBack function allows you to retrace your
path using the track log automatically stored in the receiver’s memory, which will
eliminate the need to store waypoints along the way. TracBack routes are created
by reducing your track log into a route of up to 30 waypoints and activating an
inverted route along those points. Once activated, a TracBack route will lead you
back to the oldest stored track log point, so it’s good idea to clear the existing
track log at the start of your current trip (e.g., your dock) before you get started.
To clear the track log and define a starting point for a TracBack route:
1. Press the O key twice to display the main menu page.
2. Highlight the ‘Track’ option and press T.
60
3. Select the ‘Delete Track?’ option and press T.
Tracback Navigation (continued)
GOTO/MOB
4. Highlight the ‘Yes’ field and press T.
To activate a TracBack route:
TracBack Navigation
1. Press the G key, followed by the O key.
2. Highlight the ‘Start TracBack?’ option and press T.
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Once a TracBack has been activated, the GPSMAP 185 Sounder will take the
track log currently stored in memory and divide it into segments called ‘legs’. Up
to 30 temporary waypoints (e.g. T001) will be created to mark the most significant
features of the track log in order to duplicate your exact path as closely as possible. To get the most out of the TracBack feature, remember the following tips:
• Always clear the track log at the point that you want to go back to (dock, etc.).
• The ‘RECORD’ option on the track log setup page must be set to ‘Fill’ or ‘Wrap’.
• There must be at least two track log points stored in memory to create a TracBack route.
• If there are not enough available waypoints in memory to create a TracBack route, you
will be alerted with a ‘waypoint memory full’ message, and the receiver will use available
waypoints to create a route with an emphasis on the track log closest to the destination.
• If the track log interval is set to the ‘Time’ option, the route may not follow 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, the TracBack will
draw a straight line between any point where coverage was lost and where it resumed.
• If your track log’s changes in distance and direction are too complex, 30 waypoints may
not mark your path accurately. The receiver then assigns the 30 waypoints to the most
significant points of your track, and simplifies segments with fewer changes in direction.
• Whenever a TracBack route is activated, the receiver will automatically erase any temporary waypoints (e.g., ‘T001’) that are not contained in routes 1-20. If there are temporary
waypoints stored in routes 1-20, the receiver will create any new temporary waypoints
using the first three digit number available.
A
B
A. The TracBack feature uses your track log to
create a route back to where you started.
B. Once a TracBack is activated, the track log is
divided into segments using temporary waypoints, and an inverted route is activated
back to the oldest track log point in memory.
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ROUTES
Creating a Route
Graphically
Routes
The last way to navigate to a destination is to create a user-defined route. The
GARMIN GPSMAP 185 Sounder system lets you create and store up to 20
reversible routes (numbered 1-20), with up to 30 waypoints each. Routes can be
created and modified right from the map page, allowing you to see each route
graphically on-screen as you create, review, modify or navigate the route. All of
the GPSMAP 185 Sounder’s route functions are accessed through the main menu.
To create a route graphically:
1. Press the O key twice to display the main menu page.
2. Highlight the ‘Routes’ field and press T. The routes page will appear, showing all the
routes currently stored in memory.
3. Press the O key to display the route options page.
4. Press T to select the ‘Create New Route’ option.
The route edit page will appear, with the cursor displayed as an arrow pointer,
and will allow you to select your route waypoints using one of two methods:
A
B
A. The route options page provides access to the
GPSMAP 185 Sounder’s route functions.
B. Use the arrow pointer and EDIT/ENTER to add
waypoints to the route. The create waypoint
page will appear whenever you have selected a
position that is not already stored as a waypoint.
5. To add an existing waypoint or navaid to the route, use the arrow pointer to highlight the
desired waypoint on screen and press T.
6. To add a new waypoint to the route, use the arrow pointer to select the desired map
position and press T. Press T again to confirm the new waypoint.
As you add each new waypoint to the route, the data window at the top of the
map display will show the route number you are creating, along with the first and
last route waypoints of the route. A route line will appear on the map to indicate
each completed leg, and a dotted line will appear to indicate the distance and
bearing to the arrow pointer from the last route waypoint.
7. Repeat steps 5 and 6 until you have finished defining all route waypoints.
8. Press Q to finish and enter review mode, or J to return to the main page
sequence.
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Once a route has been created graphically (and the Q key has been pressed to
finish), the map display will automatically enter the route review mode. The arrow
pointer will be replaced by the map cursor, located at the last route waypoint. The
route edit mode allows you to review and modify the route displayed through a
pop-up window menu for each waypoint. You may also use the cursor to select an
individual route leg and insert a new route waypoint.
ROUTES
Reviewing & Editing
Routes Graphically
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9
To edit a route waypoint:
1. Use the cursor to highlight the desired route waypoint and press T.
A pop-up menu of editing choices will appear, with options for reviewing,
removing, moving or inserting a route waypoint.
To review a route waypoint:
1. Highlight the ‘Review?’ option and press T.
To remove a route waypoint:
1. Highlight the ‘Remove?’ option and press T.
To move a route waypoint:
1. Highlight the ‘Move?’ option and press T.
2. Move the cursor to the new map position and press T.
To insert new route waypoint(s) at the beginning or end of the route:
1. Select the first (to add waypoints to the beginning of the route) or last (to add waypoints
to the end of the route) route waypoint with the map cursor, and press T.
A
B
A. To move a route waypoint, select the ‘Move?’
option and press EDIT/ENTER.
B. Move the arrow cursor to the new waypoint
position and press EDIT/ENTER to confirm.
2. Highlight the ‘Insert?’ option and press T.
3. Move the cursor to the new waypoint position and press T.
4. If you are not inserting an existing waypoint, press T to confirm the new waypoint.
5. Repeat steps 3 and 4 to insert additional waypoints, or press Q to finish.
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ROUTES
Route Edit Mode
The GPSMAP 185 Sounder’s route edit mode also allows you to insert a new
route waypoint in any route leg using the map cursor.
To insert a new waypoint between two existing route waypoints:
1. Use the cursor to select the leg you want to insert the new waypoint in (the route line
will change to a dotted line when the leg is selected) and press T.
2. Move the cursor to the new map position and press T.
3. If you are not inserting an existing waypoint, press T to confirm the new waypoint.
The route edit options page provides access to a variety of functions which can
be used to review, activate, invert or edit the route as text and adjust the map
view of the selected route.
To display the route edit options:
1. Press O.
To select a menu option:
A
B
A. A new route waypoint may be inserted into
any route leg by pointing to the new waypoint or position and pressing EDIT/ENTER.
B. The ‘Edit As Text?’ option allows you to
review and modify waypoints by text entry.
1. Highlight the desired option and press T.
The following options are available:
• Edit As Text?— allows you to modify a route by text entry.
To edit a route by text entry:
1. Highlight the ‘Edit As Text?’ option and press T. The text edit page will appear,
showing a list of all route waypoints, with the desired track and distance of each
leg displayed.
2. Select the route waypoint you want to review or change and press T. A pop-up
menu with four route editing options will appear.
To review the selected waypoint:
1. Highlight the ‘Review?’ option and press T.
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To insert a new waypoint before the selected route waypoint:
ROUTES
1. Highlight the ‘Insert?’ option and press T.
2. Enter the name of the new waypoint using the R keypad, or press O to select
the new waypoint from the nearest list, waypoint list, or map display.
Editing Routes & Route
Edit Options
3. Press T to finish.
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To remove the selected route waypoint:
1. Highlight the ‘Remove?’ option and press T.
To change the selected route waypoint:
1. Highlight the ‘Change?’ option and press T.
2. Enter the name of the new waypoint using the R keypad, or press O to select
the new waypoint from the nearest list, waypoint list, or map display.
3. Press T to finish.
The route edit options page features five more functions. These functions may be
selected by highlighting the desired function and pressing T:
• Activate Route?— activates the route you are editing and begins navigation.
• Invert Route?— activates the route you are editing in reverse order and begins navigation.
• Center On Vessel?— redraws route edit map with your vessel in the center of the
display.
• Center On First Wpt?— redraws route edit map with the first route waypoint in the
center of the display.
• Deactivate Route?— stops navigation of the route currently selected.
To exit the route edit mode and return to the route list page, press the Q key.
A
B
A. To remove a route waypoint, highlight the
waypoint on the map, press EDIT/ENTER,
and select the remove option from the popup window.
B. The route edit options page lets you activate,
invert or deactivate the route you are editing.
The ‘Center On Vessel’ and ‘Center On First
Wpt’ options redraw the map to display the
desired option.
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Route List Page
ROUTES
Route List Page
The GPSMAP 185 Sounder’s route list page numerically lists all the routes currently
stored in memory, with the route number and comment displayed. Route 00 is always
reserved for the TracBack route, while routes 1-20 serve as storage routes (route 20 is
stored as the GPSMAP tour route, which may be deleted at any time). From the list, you
may enter your own 16-character route comment and select a specific route for activation, editing or other management functions.
To enter a custom route comment:
1. Highlight the desired route and press T.
2. Press the left arrow key of the R keypad to clear the comment field.
3. Use the R keypad to enter the new route comment and press T.
Once you have selected a route from the route page, additional functions for that
route are available from the route options page.
To display the route options:
A
B
1. Press O.
To select a menu option:
A. The route list page displays each route stored
in memory, along with a 16-character user
comment. The default comment is the name
of the first and last route waypoint.
B. The route list options page provides quick
access to many route functions, including
activating and deactivating a selected route.
1. Highlight the desired option and press T.
The following options are available from the route list page:
• Create New Route?— allows you to create a new route (see page 62).
• Activate Route?— activates the selected route and begins navigation.
• Invert Route?— activates the selected route in reverse order and begins navigation.
• Edit On Map?— allows you to edit the selected route graphically (see pages 63-64 for
specific instructions).
• Edit As Text?— allows you to edit the selected route by text (see pages 64-65 for specific
instructions).
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Route List Page Options (cont.)
ROUTES
• Clear Route?— allows you to clear all waypoints from the selected route.
To clear the selected route:
Route List Options
1. Highlight the ‘Clear Route?’ option and press T.
2. Press T to confirm the clear route warning.
• Copy Route?— allows you to copy the waypoints of a selected route to another
route. The route copy function can be used to copy a TracBack route (route 00) to
another route in order to either prevent losing the route the next time a TracBack
route is activated, or save a modified version of an existing route without losing the
original.
To copy a route:
1. Highlight the ‘Copy Route?’ option and press T. The selected route will appear
as the ‘copy from’ route, and the first open storage route will appear as the ‘copy
to’ route.
2. Press T to confirm. (If you’d like to change the route number that is being
copied or the open route which is being copied to, highlight the appropriate field
and press T; select the new route number and press T.
A
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9
B
A. To delete all waypoints from a selected route,
highlight the ‘Clear Route?’ option and press
EDIT/ENTER.
B. Once a route is cleared, all waypoints are
removed from the route. They are still stored
in memory, however.
• Deactivate Route?— stops navigation of the route you are currently navigating.
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Active Route Page
ROUTES
Active Route Page
Each waypoint on the active route page may be
reviewed, deleted or changed right from the active
route page. To edit an active route waypoint, highlight the desired waypoint and press EDIT/ENTER.
Select the desired function from the pop-up menu
and press EDIT/ENTER.
Whenever you have activated a route in the GPSMAP 185 Sounder system, the
active route page will appear in the main page sequence. The active route page
shows each waypoint of the active route, with the waypoint name, desired track,
cumulative distance and ETE or ETA for each waypoint from your present position.
The current destination waypoint, the ‘active to’ waypoint, is marked with an arrow
icon. As you navigate a route, the waypoint list will automatically update to indicate
the next ‘active to’ waypoint first.
From the active route page, you can:
• Change the route comment- see page 66 for instructions.
• Edit the route as text- see pages 64-65 for instructions.
Additional functions for the active route are available from the active route
options page.
To display the active route options:
1. Press O.
To select a menu option:
1. Highlight the desired option and press T.
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Active Route Page Options
ROUTES
Active Route Page
Options
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The following options are available from the active route page:
• Invert Route?— activates the active route in reverse order and begins navigation.
• Activate Route?— reactivates the active route and selects the route leg closest to
your current position as the new active leg.
• Edit On Map?— allows you to edit the selected route graphically (see pages 63-64
for specific instructions).
• Clear Route?— allows you to clear all waypoints from the selected route.
• Copy Route?— allows you to copy the waypoints of the active route to another
route.
• Change Data Fields?— allows you to define the data displayed in the distance and
ETE fields. four data options are available:
• DIS– distance to active wpt • DTK– desired track
• ETE– estimated time enroute • ETA– estimated time of arrival
• Restore Defaults?— resets all active route page options to the factory settings.
The ‘Change Data Fields?’ option lets you specify
what information is displayed for each route waypoint. Four data options are available: distance,
desired track, and ETA or ETE to each route waypoint.
• Deactivate Route?— stops navigation of the route you are currently navigating.
• Setup Simulator?— allows you to define speed, course and position values while in
simulator mode. See the Getting Started Tour for more on using the simulator
mode.
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SETUP MENUS
Track Log Setup
Track Log Submenu
The GPSMAP 185 Sounder’s main menu page’s track submenu lets you specify
whether or not to record a track plot (an electronic recording of your path) and
define how it is recorded. It also provides an indicator of the track memory used
and selects functions to clear the track memory and start a TracBack route. The following functions are available:
• Record Mode— lets you select one of three track recording options:
• Off– No track log will be recorded. Note that selecting the ‘Off’ setting will prevent
you from using the TracBack feature.
• Fill– a track log will be recorded until the track memory is full.
• Wrap– A track log will be continuously recorded, wrapping through the available
memory (replacing the oldest track data with new data).
• Interval— defines the frequency with which the track plot is recorded. Three interval settings are available:
• Time– records track plot based on a user-defined time interval.
A
B
A. The ‘Wrap’ option will continuously record a
track log, and replace the oldest track log point
with new data. The ‘Fill’ option will record a
track log until the memory is full.
B. The track submenu’s default settings may be
quickly restored from the track options page.
• Resolution– records track plot based upon a user-defined variance from your course
over ground. The resolution option is the default setting and is recommended for
the most efficient use of memory and TracBack performance. The distance value
(entered in the interval field) is the maximum error allowed from the true course
before recording a track point.
• Distance– records track based on a user-defined distance between points.
• Interval Value— defines the distance or time used to record the track log.
• Delete Track?— allows you to clear the track log currently stored in memory.
• Start TracBack?— converts the current track log into an inverted route and begins
route navigation along the track log.
To reset all track options to the default settings:
1. Press O, followed by T.
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Trip and Fuel Planning
SETUP MENUS
The GPSMAP 185 Sounder’s trip and fuel planning submenu lets you plan and
review distance, fuel, and ETE/ETA information between any two waypoints; your
present position and a stored waypoint; or any part of a stored route. Sunrise and
sunset information is also provided. Two planning modes are available: point-topoint and route planning.
Trip & Fuel Planning
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To use the point-to-point planning mode:
1. Highlight the ‘Trip & Fuel Planning’ option from the main menu page and press T.
2. If the plan field is not set to ‘Point-To-Point’, press the O key and select it from the
options page.
3. Highlight the first waypoint field and press T. Press the left arrow key to clear the
field, and use the R keypad to enter the name of the starting waypoint. You may leave
the waypoint field blank to use your present position, or press the O key to select the
waypoint from the nearest list, the waypoint list, or the map display. Press T to confirm the waypoint.
4. Move the field highlight to the second waypoint field and follow the steps above to
select the destination waypoint.
5. Enter a speed for your trip in the speed field, or press O to select your current SOG
for the speed value.
6. Enter an hourly fuel flow (if desired) in the fuel field, and press T.
7. Enter the date and time of your departure (the default date and time will be the current
date and time in UTC or local time, whichever you have selected) and press T.
The bottom of the page will now display the desired track and distance between
the two points; the estimated time enroute and fuel required; the date and time of
your arrival; and the sunrise and sunset times at the destination for the date of
arrival.
The route planning mode lets you calculate the same planning information for
any route stored in memory, in leg or cumulative leg or route totals.
A
B
A. To perform point-to-point planning, enter a
‘TO’ and ‘FROM’ waypoint, or leave the field
blank if you want to use your present position.
B. Enter a date and time for your departure. The
sunrise/sunset and ETA at the ‘TO’ waypoint
will be displayed at the bottom of the page.
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To use the route planning mode:
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SETUP MENUS
Route & Trip Planning
1. Highlight the ‘Trip & Fuel Planning’ option from the main menu and press T.
2. If the plan field is not set to ‘Route’, press O and select it from the options page.
3. Highlight the route number field and press T.
4. Use the R keypad to select the route you want to plan and press T.
5. Highlight the leg field and press T.
6. To plan the cumulative totals for the all route legs, select the ‘ALL’ option—or use the
R keypad to select a specific route leg to plan. Press T to confirm.
7. Enter a speed for your trip, or press O to select your current SOG for the speed value.
8. Enter an hourly fuel flow (if desired) in the fuel field, and press T.
9. Enter the date and time of your departure (the default date and time will be the current
date and time in UTC or local time, whichever you have selected) and press T.
A
B
A. To plan cumulative totals for an entire route,
select the ‘All’ option from the leg field.
B. To plan cumulative totals through a particular
leg, select the ‘Hold First Waypoint?’ option
from the Trip and Fuel Planning options page.
Then enter the last leg you want to plan in the
leg field.
72
The bottom of the page will now display the planning information for the route
leg selected or the cumulative values for the entire route. The route planning
mode will also let you plan cumulative totals for multiple route legs by using the
‘Hold First Waypoint?’ selection from the options window.
To plan multiple route legs:
1. Follow steps 1 through 6 above to select the last route leg you want to plan. For example,
select leg 03 if you want to plan cumulative totals for the first three legs of the route
(without including the rest of the route).
2. Enter the speed, fuel and date/time values as described in steps 7-9 above.
3. Press the O key to display the options page.
4. Select the ‘Hold First Waypoint?’ option and press T. The cumulative totals from the
first route waypoint to the end of the selective leg will appear at the bottom of the page.
The fuel and trip planning submenu also allows you to calculate the sunrise and
sunset times for your present position or any waypoint for a selected date.
SETUP MENUS
To use the sunrise/sunset planner:
Sunrise/Sunset Planning
System Setup
1. Highlight ‘Trip & Fuel Planning’ option from the main menu and press T.
2. Highlight the first waypoint field and press T. Press the left arrow key to clear the
field, and use the R keypad to enter the name of the desired waypoint. You may leave
the waypoint field blank to use your present position, or press the O key to select the
waypoint from the nearest list, the waypoint list, or the map display. To calculate the
sunrise/sunset for your present position, leave both waypoint fields blank.
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3. Press T to confirm.
4. Highlight the date field and press T.
5. Enter the date you want sunrise/sunset information for (the current date and year will be
used as the default setting) and press T. The sunrise and sunset times for the arrival
date will be displayed at the bottom right of the planning page.
Setup Submenus
The last four options available from the main menu page provide access to the
various system, navigation, alarm and interface settings of the GPSMAP 185
Sounder. The system setup submenu is used to select the operating mode, date
and time formats, tone preferences, backlight timeout and display contrast.
• Operational Mode lets you select between normal, simulator, sounder only, or GPS
only mode. In normal mode both GPS and sounder functions operate at the same
time. In simulator mode, the GPSMAP 185 Sounder’s system only pretends to track
satellites to allow you to learn how the unit works. Simulator mode should not be
used for actual navigation. Waypoints and routes created in simulator mode are
saved in memory and are available for use in normal mode. The sounder only and GPS
only modes allow you to determine what type of information the GPSMAP 185
Sounder will give you. GPS only mode is useful when using the unit for land navigation
while enroute to the water. Sounder only mode is an option if you do not want GPS
information (such as position, speed, heading, and map functions) while on the water.
A
B
A. The system setup submenu provides access to
the GPSMAP 185 Sounder’s time formats and
contrast/backlight controls.
B. When entering a time offset, be sure to select
a positive or negative indicator to the left of
the offset value.
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SETUP MENUS
System Setup & System
Setup Options
• Time Offset provides a data entry field to enter the time difference between UTC time
and the local time. (See Appendix F for a list of time offsets.) When entering a time offset,
be sure to select a positive or negative offset. Note that entering an offset will not automatically display local time. The local setting from the Date/Time Selection submenu
must be selected.
• Local/UTC lets you choose to display the date and time in UTC (Greenwich Mean Time)
time or local time offset from UTC time. The default setting is local with a ‘0’ offset. (If
you are boating in the United States, be sure to enter a negative time indicator in front of
the appropriate time offset for your location).
• Tone Selection lets you select an audible tone to sound for either messages and keystroke
confirmation (the default setting), messages only, or not to sound at all. Note: Setting the
tone selection for no sound will prevent an audible tone for all alarms, including shallow
water and proximity waypoints.
A
B
A. The ‘None’ tone setting will prevent an audible
tone from sounding for any key presses, messages, or alarms. Regardless of the tone setting, ‘MESSAGE -PRESS PAGE’ will continue
to be flashed on the status bar for any system
messages or alarms.
B. Keeping the backlight timeout at the lowest
acceptable setting will prolong the useful life
of the backlight.
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• Display Contrast provides a slide bar to adjust the LCD screen contrast in order to compensate for changes in temperature or lighting conditions.
• Backlight Timeout provides an automatic shutoff for the GPSMAP 185 Sounder’s screen
backlighting. Six settings are available: No Timeout (the backlight will stay on until it is
turned off), 15 seconds (default setting); 30 seconds; and 1, 2, or 4 minutes. Keeping the
timeout at the lowest acceptable setting will prolong the life of the backlight.
• Language lets you select one of nine languages that the unit can display. The available
lanaguages are; English, Danish, Finnish, French, German, Italian, Portuguese, Spanish,
Swedish.
The system setup page also features an options page that allows you to quickly
reset all the system setup options to the factory default settings and define speed,
course and position values while in simulator mode (see Getting Started Tour).
To view the system setup page options:
SETUP MENUS
1. Press the O key.
To restore the default settings:
Navigation Setup
1. Highlight the ‘Restore Defaults?’ option, and press T.
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Navigation Setup
The navigation setup submenu is used to select a variety of navigation information including: position format, units of measure, temperature units and heading
preferences. This submenu is also used to select map datums, set the CDI scale and
adjust the built-in velocity filter. The following options are available:
• Position Format lets you select the coordinate system used to display
position. The following formats are available:
• hddd.dddddº (degrees)
• hdddºmm.mmm’ (degrees and minutes)
• hdddºmm’ss.s” (deg/min/sec)
• British grid
• German grid
• Irish grid
• Maidenhead
• Swedish grid
• Swiss grid
• Taiwan grid
• UTM/UPS grid
• Loran TD
For more information on the Loran TD position format see Appendix G: on page 96.
• Navigation Units selects the format for speed and distance measurements. You may
select from nautical, statute or metric formats. (The default setting is nautical.)
• Depth Units selects the format for depth contour display on Micro G-chart offshore
chart cartridges and the sounder display. Depth contours and sounder depth units
can be displayed in feet, meters or fathoms. (The default setting is feet.)
• Temp Units lets you choose whether to display temperature in Celsius or Fahrenheit
• Heading lets you select what reference is used in calculating heading information.
You can select to reference automatic magnetic variation, true north, grid heading or
user magnetic variation. (The default setting is automatic.)
To enter a user magnetic variation:
1. Highlight ‘Heading’ and press T. Select the ‘User Mag Var’ option and press T.
A
B
A. The GPSMAP 185 Sounder will also display
position coordinates in eight grid formats.
B. To enter a user magnetic variation, select the
‘User Mag Var’ option and enter a direction
and value in the variation field.
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A
SETUP MENUS
Navigation Setup
B
A. CAUTION! Using the incorrect map datum can
seriously effect the accuracy of your GPS receiver. The GPS datum should always match the
datum of the local chart you are using. If no
datum information is indicated on the charts
you are using, contact the chart manufacturer.
B. Keeping the velocity filter on the ‘Auto’ setting
will allow the GPSMAP 185 Sounder to automatically monitor and adjust the response time
for track and speed calculations.
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2. Press T to access the variation field, use the R key to enter the desired variation. Press
T to confirm.
• CDI Scale provides a list of six CDI scale settings for the map page CDI: +/-0.10,
0.50, 1.0 (default). 5.0, 10.0 and 25.0 miles or kilometers. The scale represents the
distance from the center of the scale to either end of the scale.
• CDI Steer To allows you select a steer-to-center or steer-to-D-Bar orientation for
graphic steering guidance. The steer-to-center selection displays your position as
the vertical line on the scale, and your desired track as the center of the scale. The
steer to D-Bar option displays your position as the center of the scale, with the
desired track as the vertical line. The default setting is steer to center.
• Map Datum provides a list of the available map datums for use with the GPSMAP
185 Sounder system. For a list of the available map datums, see Appendix D. The
default setting is WGS 84.
• Velocity Filter allows you to select the GPSMAP 185 Sounder’s response time to
changes in track or ground speed. Three settings are available: automatic, on, or
off. The ‘auto’ (default) setting will monitor the changes in your current track and
speed and adjust the receiver’s response time automatically. The ‘on’ setting allows
you to manually enter a response time up to 240 seconds. Selecting a higher setting
may be desirable in slow-speed applications with frequent changes in track.
To enter a user defined velocity filter value:
1. Highlight the ‘Velocity’ field and press T. Select the ‘On’ option and
press T.
2. Highlight the time value field.
3. Press T.
4. Enter a value in seconds (up to 240) and press T to confirm.
Timers & Alarms Setup
SETUP MENUS
The timer & alarms submenu is used to control various alarm/timer settings.
• Timer sounds an alarm when an entered interval (up to 99:59:59) has expired, or
provides a continuous running clock timer to 99:59:59.
Timers & Alarms
To use the countdown timer:
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10
1. Select the ‘Count Down’ menu option.
2. Enter the desired time interval in the interval field, and press T.
3. Once the count down time has expired, an alarm message will appear, and the
timer will automatically switch to the count up mode.
4. To reset the timer, select the reset option and press T.
• Clock Alarm provides an alarm for the system clock. To use the clock alarm, select
the ‘On’ option and enter the desired time of day in the time field.
• Arrival Alarm lets you specify an alarm to sound when you’re a specified distance
away from a destination waypoint. Three options are available:
• Off- No arrival alarm will sound.
• Auto- An arrival alarm will sound one minute before the destination, based
upon your current speed and course over ground.
• On- An arrival alarm will sound at the alarm distance specified in the distance
field for the destination waypoint (the ‘On’ setting will only provide an arrival
alarm for the final destination waypoint of the active route).
• Crosstrack Alarm provides an alarm for crosstrack error (XTK) when your vessel is
off course by more than a specified distance, up to 99.99 (units).
• Anchor Drag Alarm lets you specify an alarm to sound when you’ve exceeded a
specified drift distance, up to 9999 (units). Whenever the anchor alarm is triggered,
an anchor icon will appear in the status bar.
A
B
A. The timer field can be set to count down
from a specified interval or provide a running
count of elapsed time.
B. The sounder alarms can be set to warn you of
deep or shallow water and sounder targets of
various sizes.
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SETUP MENUS
Input/Output Setup
• Sounder Alarms allows you to set shallow and deep depth alarms and an alarm for
specific sized fish/targets. Three options are available:
• Shallow On/Off- Sounds if depth equals or is less than the selected value.
• Deep On/Off- Sounds if depth equals or is more than the selected value.
• Fish On/Off- Select from All Targets, Medium-Large Targets, or Large Targets.
Input/Output Submenu
The Input/Output submenu lets you control interface settings for connecting
external NMEA devices, a DGPS receiver or a personal computer. The
‘Input/Output Format’ field, at the top of the page, lets you specify one of seven
interface formats:
Data Transfer is a proprietary interface that allows you to exchange data such as waypoints, routes and track logs between GPSMAP units or a GARMIN PC kit.
No In/NMEA Out provides navigation information to a compatible NMEA device such
as an autopilot or radar. NMEA 0180, 0182, 0183 v.1.5 and 0183 v.2.0 output options
are available. See Appendix A for additional NMEA sentence information.
A
B
A. The data transfer options allow you to send
or receive almanac data, proximity waypoints, routes, track log data and waypoints
to another GARMIN GPS or PC Kit.
B. The NMEA In setting allows you to accept
NMEA data from a Yeoman plotter or other
compatible device.
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No In/No Out provides no interfacing capabilities.
RTCM In/NMEA Out allows DGPS beacon receiver input and also provides selectable
NMEA output.
RTCM In/No Out allows DGPS beacon receiver input, with no output capabilities.
NMEA In/No Out allows input from a NMEA compatible external device, such as a
Yeoman© Plotter, with no output capabilities.
NMEA In/NMEA Out provides the same input capabilities as NMEA IN, with selectable
NMEA output.
When the ‘Data Transfer’ option is selected, you’ll need to specify what information to request or send to the remote unit through the Transfer Mode field. The
‘slave’ setting lets you control all data transfer from the ‘external’ GPS receiver, or
PC while the other settings request or send specific data from the primary unit.
Using NMEA & DGPS Interface Settings
SETUP MENUS
If you are using an NMEA interface format, the NMEA format must be specified
in the NMEA format field that will automatically appear when an NMEA option is
selected. The appropriate baud rate will be set automatically.
NMEA & DGPS Setup
To select a NMEA format:
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1. Select a NMEA IN/OUT format from the options page.
2. Highlight the NMEA Format field and press T.
3. Select a NMEA sentence format and press T.
4. The baud rate will automatically be set to the appropriate speed. If you have
selected an NMEA IN/OUT setting, you must use the same NMEA format for both
the input and output device.
Tuning DGPS Stations
If the I/O Format is set to accept RTCM input/NMEA Output for connecting a
differential-ready GPS beacon receiver, you will need to tune a frequency in the
tuning field and select a bit rate. The default frequency will be 304.0 kHz, with a
bit rate of 100 bps, or the last DGPS frequency/bit rate selected.
To tune a DGPS frequency:
1. Select the ‘RTCM In/NMEA Out’ format from the options page.
2. Highlight the beacon receiver frequency field and press T.
3. Enter the desired frequency and press T. If you are using an automaticallytuned DGPS receiver, you may enter 000.0 for the frequency.
4. Press T to select a bit rate. Five bit rates are available: 0 (used for automatically-tuned DGPS receivers), 25, 50, 100 and 200 bps. Press T to confirm. The
DGPS status, along with the signal-to-noise ratio of the tuned station, will be displayed at the bottom of the page.
A
B
A. Select the desired format from the NMEA
field. The baud rate will automatically be set
to the appropriate speed.
B. After entering a DGPS frequency, set the bit
rate to the speed indicated on the USCG station chart. DGPS coverage, frequencies and
bit rates are available from the Coast Guard’s
automated FAX service (703-313-5920).
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Micro G-chartS
Loading & Removing
Micro G-charts
Installing & Removing Micro G-chart Cartridges
The GARMIN GPSMAP 185 Sounder system uses Micro G-chart offshore or
inland cartography to display digital charts on-screen. Micro G-chart cartridges
are installed in the card slot located at the bottom right of the GPSMAP 185
Sounder unit. Micro G-chart cartridges may be installed or removed at any time,
whether the unit is on or off.
To install a Micro G-chart cartridge:
1. Open the cartridge door.
2. Insert the card (label facing front) into the slot.
3. Use your thumb to firmly push the cartridge into place (until the cartridge will not go any
further into the unit). If your GPSMAP 185 Sounder is on, a confirmation tone will sound
when the cartridge has been properly installed and accepted.
4. Close the cover.
If you insert a Micro G-chart cartridge and get a ‘card format not recognized’ message, try removing the card and reinserting it. If the card is still not recognized, contact the dealer you purchased it from for assistance. Micro G-chart cartridges are
not waterproof, should not be exposed to moisture or excessive static charges, and
should be stored in the anti-static bag supplied with the cartridge.
To remove a Micro G-chart cartridge:
1. Open the cartridge door.
2. Grasp the card by the bottom, extend the handle and pull firmly.
3. If your GPSMAP 185 Sounder is on, a confirmation tone will sound when the Micro Gchart cartridge has been removed.
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Using Micro G-chart Cartography
Micro G-chartS
Once a Micro G-chart cartridge has been inserted, the map coverage outlines for
the cartridge will automatically appear on-screen. Keep in mind that the display
will not automatically scroll to the map area or zoom to a level where you can see
the coverage outlines. If you do not immediately see the outlines, scroll the cursor
to the broad geographic area covered by the chart and zoom out to another map
scale.
The large outlined box shown is the main chart, which serves as the boundary
area for the entire cartridge. The small outlined box inside the main box are subcharts, which provide more detailed coverage of the area indicated. To view the
detailed cartography of any subchart, scroll the cursor to the subchart outline and
use the C key to zoom in to smaller range scales. If the map outlines still do not
appear, check the ‘Map Outlines’ setting on the map options page to make sure
they are set to appear (see page 40).
Whenever you zoom past the usable range of the current electronic chart, the range
field will display ‘Ovr Zm’ or ‘No Map’. These warnings indicate that although you
may still have cartography, you should exercise extreme caution using the data. See
page 39 for more information on Overzoom and No Map modes.
When a Micro G-chart cartridge is installed, the GPSMAP 185 Sounder’s system
will automatically use the best available chart for display. As you enter and exit
various subcharts, the system will automatically display the appropriate chart for
the area you are in. When you leave the area covered by the main map of a cartridge, the GPSMAP 185 Sounder will default back to using the built-in 64 nm
database if it is available at the current scale.
If you are not seeing certain map items (navaids, depth contours, etc. on
offshore cartridges; highways, boat ramps, etc. on inland cartridges), check the
map configuration settings available from the map options page.
Using Micro G-charts
A
SECTION
11
B
A. Map outlines for Micro G-chart offshore cartography.
B. Map outlines for Micro G-chart inland cartography.
81
Installing the GPSMAP 185 Sounder
APPENDIX
Installation
SECTION
A
The GPSMAP 185 Sounder must be properly installed according to the following instructions to get the best possible performance. Included with your sounder
is GARMIN power/data/transducer cable (part no. 320-00089-00) and GARMIN
transducer with cable, which must be used to comply with FCC regulations. To
complete the installation, you’ll need the appropriate fasteners and a 1” x 14thread marine antenna mount available at most marine dealers.
Mounting the GPS antenna
The antenna should be mounted in a location that has a clear, unobstructed
view of the sky in all directions to ensure the best reception. Avoid mounting the
antenna where it will be shaded by the boat’s superstructure, a radome antenna,
or mast. Sailboat users should avoid mounting the antenna high on the mast to
prevent inaccurate speed readings caused by excessive heeling. Most marine VHF
and loran antennas will not seriously degrade the GPS antenna’s reception. Never
paint the antenna or clean it with harsh solvents.
The GARMIN antenna screws directly onto any standard 1” x 14-thread antenna mount. If you need to raise the antenna to avoid shading, try using a 1” x 14thread extension mast available at most marine dealers.
To install the GPS antenna:
1. Screw the antenna directly onto the 1” x 14-thread mount.
It is possible to route the coaxial cable either through, or
outside the antenna mount. The BNC connector on the
coaxial cable can be removed, and the coaxial cable
shortned to ease installation. If the BNC connector is
removed it must be replaced with a new BNC connector.
82
2. Route the cable to the mounting location of the display unit. Use the appropriate tiewraps, fastners and sealant to secure the cable along the route and through any bulkhead or deck.
3. Once the GPSMAP 185 Sounder unit has been installed, connect the cable to the antenna connector on the back of the display unit. Make sure that you turn the antenna cable
connector 1/4 turn clockwise to lock the cable into place.
Mounting the GPSMAP 185 Sounder Unit
The GPSMAP 185 Sounder’s compact, waterproof case is suitable for mounting
in exposed locations or at the nav station. The unit comes with a gimbal bracket
that can be used for surface or overhead mounting. When choosing a location for
the display unit, make sure you consider the following conditions:
• There should be at least a 3” (5 cm) clearance behind the case to allow connection of the
antenna, power/data cables.
APPENDIX
Installation
SECTION
A
• You should provide adequate clearance for the Micro G-chart cartridge cover to swing
open freely. You may have to swivel the unit to get a firm grip on the cartridge.
• The mounting surface should be heavy enough to support the unit and protect it from
excessive vibration and shock.
To install the GPSMAP 185 Sounder unit:
1. Place the mounting bracket in the desired location.
2. Mark and drill the four mounting holes for the fastener you are using.
3. Fasten the bracket to the surface using the appropriate fastener.
4. Insert the GPSMAP 185 Sounder into the mounting bracket. The bracket is designed for a
tight fit to provide additional support when swiveling the unit.
5. Screw the two mounting knobs through the bracket and into the display case.
6. Connect the power/data/transducer and antenna cables to the back of the unit, making
sure the locking rings are fully tightened on both connectors.
The mounting bracket can be rotated, allowing
the unit to be mounted overhead or on a vertical surface.
83
To flush mount the GPSMAP 185 Sounder:
APPENDIX
Installation
SECTION
A
1. Remove the four M5 screws from the back of the unit and remove the mounting
bracket .
2. Using the mounting template provided in the box, determine the location where you
want to mount the unit and tape the template in place.
3. Using a hammer and center punch, mark the centers of the relief hole and mounting
screw holes.
4. Using a drill and 2.75” hole saw, cut the center relief hole from the panel. Drill the four
0.25” screw holes, using a 1/4” drill bit.
Mounting Template
5. From the front, place the GPSMAP 180 into the relief hole until the unit rests flush
against the mounting surface.
6. Secure the unit to the mounting surface using M5 screws. Note: For thick mounting surfaces, insert the M5 screws directly thru the four drilled holes (figure 1). For thin panels,
place the mounting bracket on the back side of the panel for more support (figure 2).
7. Attatch the power/data/transducer cable and antenna connectors.
Mounting template provided in box
Figure 1
84
Figure 2
Connecting the Power/Data/Transducer Cable
The power/data/transducer cable connects the GPSMAP 185 Sounder to a 1040 volt DC system and provides interface capabilities for connecting external
devices, including an external alarm. The color code in the diagram below indicates the appropriate harness connections.
APPENDIX
Installation
SECTION
A
DGPS corrections are accepted in RTCM-104 v. 2.0 format through the NMEA In (BROWN) harness lead. The
GARMIN GBR 21 is the recommended beacon receiver for
use with the GPSMAP 185 system. Other receivers with the
correct RTCM format may be used, but may not correctly
display status or allow tuning control from the sounder
unit.
85
Transducer Installation
SECTION
B
APPENDIX
Wiring and Specifications
Trolling Motor
Thru-Hull
GARMIN offers a variety of transducers for use
with your GPSMAP 185 Sounder. Detailed
installation instructions for the transducer you
have chosen are included with the transducer.
Proper placement and installation of the transducer are essential in the operation of the
sounder portion of the GPSMAP 185. Please
read, and carefully follow the instructions provide with your transducer.
86
Proper transducer placement and installation are the keys to getting the best
sounder performance from the GPSMAP 185 Sounder. Detailed installation instructions are provided with the transducer. Below are some tips and basic instructions for
proper transom mount transducer installation.
NMEA Formats
The following formats are supported for connection to up to 3 NMEA devices:
• NMEA 0180/NMEA 0182
• NMEA 0183 version 1.5
Approved sentences— GPBWC, GPGLL, GPRMB, GPRMC, GPXTE, GPVTG, GPWPL, GPBOD
Proprietary sentences— PGRMM, PGRMZ (alt.), PSLIB (beacon receiver control input)
• NMEA 0183 version 2.0
Approved sentences— GPGGA, GPGLL, GPGSA, GPGSV, GPRMB, GPRMC, GPRTE, GPWPL, GPBOD
Proprietary sentences— GRME (estimated error), PGRMM (map datum)
PGRMZ (altitude), PSLIB (beacon rec. control input)
GPSMAP 185 Sounder Specifications
PHYSICAL
Case:
Size:
Weight:
Temperature Range:
SECTION
B
Gasketed Construction
6.13”H x 6.30”W x 3.0”D
(15.85 x 16 x 7.6 cm)
1.75 Lbs (.794 Kg)
5º to +158ºF (-15º to 70ºC)
PERFORMANCE (GPSMAP 185 Sounder)
Receiver:
12-channel PhaseTrac12
Acquisition Time:
Approx. 15 seconds (warm)
Approx. 45 seconds (cold)
Approx. 5 minutes (AutoLocate )
Approx. 5 minutes (Search the sky)
Update Rate:
1/second, continuous
Position Accuracy:
1-5 meters (3-16 ft.)*
15 meters (49 ft.) RMS**
Velocity Accuracy:
0.1 knot RMS steady state, 999 knots max.
Dynamics:
6g’s
Sounder Power Output:
400 WRMS
3200 W peak to peak
Frequency:
200 kHz
TM
POWER
Input:
Usage:
APPENDIX
Wiring &
Specifications
Note: For transducer specifications, see
the booklet included with your transducer.
10-40v DC
15 watts max.
Specifications subject to change without notice.
* With optional GARMIN GBR 21 Beacon Receiver Input.
** Subject to accuracy degradation to 100m 2DRMS under the U.S. DOD-imposed Selective Availability Program.
87
Alarm Clock—The alarm clock has sounded.
SECTION
C
APPENDIX
Messages
Anchor Drag Alarm—You have drifted out of
the specified distance range.
Approaching—You are less than one minute
away from reaching a destination waypoint at
your present speed over ground.
Arrival At—You have arrived at the destination
waypoint.
Can’t Change An Active Waypoint—You have
attempted to change the ‘active to’ or ‘active
from’ waypoint. Clear the active route or GOTO
before making your changes.
The GPSMAP 185 Sounder uses an on-screen
message prompt to alert you to important information. Whenever a message appears, press the
J key to view the message.
Card Format is Not Recognized—The cartridge
inserted is not readable by the GPSMAP 185
Sounder system and may be damaged. Reinsert
the cartridge to make sure it is properly
installed. If the cartridge is still not recognized,
call the Micro G-chart information line at 1-800427-6460.
Cross-Track Alarm—You have exceeded the offcourse distance specified in the CDI setup.
Data Transfer is Complete—The receiver is finished uploading or downloading information to
the connected device.
Database Memory has Failed—The built-in 64
nm database has failed. See an authorized service center for repair.
Deep Water Alarm—The current depth is equal
to or more than the set alarm depth.
Degraded Accuracy—The accuracy of your
GPSMAP 185 Sounder system has been degraded beyond 500 meters due to poor satellite
geometry or data quality. You should check
88
other navigational sources to verify the position
indicated.
Max Calibration Is 5000mt (16,400 ft)—You
have exceeded the maximum possible map calibration.
Memory Battery Power is Low—The internal
battery that stores waypoints, routes and track
plots needs to be replaced. Take your unit to an
authorized GARMIN service center for installation of a new battery.
Need Altitude—Your GPSMAP 185 Sounder
system needs the altitude to maintain a position
fix due to poor satellite coverage. Enter your
approximate altitude on the initialize position
page.
Need to Select Init Method—The GPSMAP 185
Sounder needs to be initialized to your present
position. See pages 1-2 for complete instructions
on initialization.
No Differential GPS Position—Not enough data
is being received to compute a DGPS position.
Oscillator Needs Adjustment—The GPSMAP
185 Sounder has detected excessive drift in its
internal oscillator, which may result in longer
acquisition times. Take the unit to an authorized
GARMIN service center for adjustment.
Poor GPS Coverage—The GPSMAP 185
Sounder cannot acquire the necessary number
of satellites to compute a position.
Power Down and Re-init—The GPSMAP 185
Sounder cannot calculate a position due to
abnormal satellite conditions. Power down and
verify the last position shown by other means.
Proximity Alarm—You have entered the alarm
radius for the proximity waypoint indicated.
been deleted from the route.
Proximity List Full—You have used all nine
proximity waypoints.
RTCM Input has Failed—DGPS data being
received has been lost. You are no longer receiving the beacon signal.
Proximity Overlaps Another Prox Wpt—The
alarm radius specified overlaps the area specified
for another proximity waypoint. (See section 10
for more information on proximity overlaps.)
RAM has Failed—The random access memory
has failed and the unit is not operable. Take
your unit to an authorized GARMIN service center for repairs.
ROM has Failed—The unit’s permanent memory
has failed and the unit is not operable. Take
your unit to an authorized GARMIN service center for repairs.
Received Invalid Waypoint—A waypoint was
received during upload transfer that has an
invalid identifier.
Receiver has Failed—A failure in receiver hardware has been detected. If this message persists,
do not use the unit and take it to an authorized
dealer for repair.
Route Already Exists—The route number you
are trying to copy to is already used.
Route Does Not Exist—The route number you
are trying to use or copy is not defined.
Route is Full—You have attempted to add more
than 30 waypoints to a route.
Route Memory is Full—You have attempted to
create more than 20 routes.
Route Waypoint was Deleted—A route waypoint
entered does not exist in the database and has
Searching the Sky—The GPSMAP 185 Sounder
is searching the sky for almanac data.
APPENDIX
Messages
SECTION
C
Shallow Water Alarm—The depth is equal to or
less than the set alarm depth.
Sonar ASIC has Failed—The unit’s internal monitoring system indicates a malfunction. Send in
for service as soon as possible.
Stored Data was Lost—All waypoints, routes and
almanac data has been lost due to internal battery failure.
There is No RTCM Input—The beacon receiver
is not properly connected or baud rates do not
match.
Timer Has Expired—The countdown timer has
expired.
Track Memory is Full—The track memory is full
and no additional track plot will be recorded
until the track memory has been cleared or set to
wrap mode.
Transducer-Sounder Turned Off—The transducer signal is not reaching the unit because of a
loose connector, bad wiring, or transducer malfunction.
Wpt Already Exists—The waypoint name you’ve
entered already exists in memory.
Waypoint Memory is Full—You have used all
250 waypoints in the GPSMAP 185 Sounder system.
89
SECTION
D
APPENDIX
Map Datums
The GPSMAP 185 Sounder’s built-in worldwide database includes chart coverage down to
64 nm (120 km) for the areas outlined above.
Note that the database is only valid to 68º15’ of
latitude. The maximum cursor latitude is 85º05’,
and the maximum waypoint latitude is
89º24.543 north or south.
Adindan
Afgooye
AIN EL ABD ‘70
Anna 1 Ast ‘65
ARC 1950
ARC 1960
Ascnsn Isld ‘58
Astro B4 Sorol
Astro Bcn “E”
Astro Dos 71/4
Astr Stn ‘52
Astrln Geod ‘66
90
Adindan- Ethiopia, Mali,
Senegal, Sudan
Afgooye- Somalia
AIN EL ANBD 1970Bahrain Island, Saudi
Arabia
Anna 1 Astro ‘65- Cocos I.
ARC 1950- Botswana,
Lesotho,
Malawi,
Swaziland, Zaire, Zambia,
Zimbabwe
Kenya, Tanzania
Ascension Island ‘58Ascension Island
Sorol Atoll- Tern Island
Astro Beacon “E”- Iwo Jima
Astro Dos 71/4- St. Helena
Astronomic Stn ‘52Marcus Island
Australian Geod ‘66Australia, Tasmania Island
Astrln Geod ‘84
Austria
Bellevue (IGN)
Bermuda 1957
Bogata Observ
Campo Inchspe
Canton Ast ‘66
Cape
Cape Canavrl
Carthage
CH-1903
Chatham 1971
Chua Astro
Australian Geod ‘84Australia, Tasmania Island
Austria
Efate and Erromango
Islands
Bermuda 1957- Bermuda
Islands
Bogata
ObsrvatryColombia
Campo
InchauspeArgentina
Canton Astro 1966Phoenix Islands
Cape- South Africa
Cape Canaveral- Florida,
Bahama Islands
Carthage- Tunisia
CH 1903- Switzerland
Chatham 1971- Chatham
Island (New Zealand)
Chua Astro- Paraguay
Corrego Alegr
Djakarta
Dos 1968
Easter Isld 67
European 1950
European 1979
Finland Hayfrd
Gandajika Base
Geod Datm ‘49
Guam 1963
Gux 1 Astro
Hjorsey 1955
Hong Kong ‘63
Hu-Tzu-Shan
Indian Bngldsh
Indian Thailand
Indonesia ‘74
Ireland 1965
ISTS 073 Astro
Johnston Island
Kandawala
Corrego Alegre- Brazil
Djakarta (Batavia)- Sumatra
Island (Indonesia)
Dos 1968- Gizo Island
(New Georgia Islands)
Easter Island 1967
European 1950- Austria,
Belgium,
Denmark,
Finland, France, Germany,
Gibraltar, Greece, Italy,
Luxembourg, Netherlands,
Norway, Portugal, Spain,
Sweden, Switzerland
European 1979- Austria,
Finland, Netherlands,
Norway, Spain, Sweden,
Switzerland
Finland Hayford- Finland
Gandajika Base- Republic
of Maldives
Geodetic Datum ‘49New Zealand
Guam 1963- Guam Island
Guadalcanal Island
Hjorsey 1955- Iceland
Hong Kong
Taiwan
Indian- Bangladesh, India,
Nepal
Indian- Thailand, Vietnam
Indonesia ‘74
Ireland 1965- Ireland
ISTS 073 ASTRO ‘69Diego Garcia
Johnston Island Kandawala
Kandawala- Sri Lanka
Sri-Lanka
Kerguelen Islnd
Kertau 1948
L. C. 5 Astro
Liberia 1964
Luzon Mindanao
Luzon Philippine
Mahe 1971
Marco Astro
Massawa
Merchich
Midway Ast ‘61
Minna
NAD27 Alaska
NAD27 Bahamas
NAD27 Canada
NAD27 Canal Zone
NAD27 Caribbean
NAD27 Central
NAD27 CONUS
NAD27 Cuba
Kerguelen Island
West Malaysia, Singapore
Cayman Brac Island
Liberia 1964- Liberia
Luzon- Mindanao Island
LuzonPhilippines
(excluding Mindanao Isl.)
Mahe 1971- Mahe Island
Marco Astro- Salvage Isl.
Massawa- Eritrea (Ethiopia)
Merchich- Morocco
Midway Astro ‘61- Midway
Minna- Nigeria
North American 1927Alaska
North American 1927Bahamas (excluding San
Salvador Island)
North American 1927Canada and Newfoundland
North Am. 1927- Canal
Zone
North American 1927Caribbean (Barbados,
Caicos Islands, Cuba,
Dom. Rep., Grd. Cayman,
Jamaica, Leeward and
Turks Islands)
North American 1927Central America (Belize,
Costa Rica, El Salvador,
Guatemala, Honduras,
Nicaragua)
North Am. 1927- Mean
Value (CONUS)
North American 1927Cuba
APPENDIX
Map Datums
SECTION
D
91
NAD27 Greenland
SECTION
D
APPENDIX
Map Datums
NAD27 Mexico
NAD27 San Salvadr
NAD83
Nahrwn Masirah llnd
Nahrwn Saudi Arbia
Nahrwn United Arab
Naparima BWI
Obsrvtorio ‘66
Old Egyptian
Old Hawaiian
Oman
Ord Srvy Grt Britn
Pico De Las Nieves
Potsdam
Pitcairn Astro ‘67
Prov So Amricn ‘56
Prov So Chilean ‘63
Puerto Rico
Qatar National
Qornoq
Reunion
92
North American 1927Greenland
(Hayes
Peninsula)
N. American 1927- Mexico
North American 1927- San
Salvador Island
North American 1983Alaska, Canada, Central
America, CONUS, Mexico
Nahrwn- Masirah Island
(Oman)
Nahrwn- Saudi Arabia
Nahrwn- United Arab
Emirates
Naparima BWI- Trinidad
and Tobago
Observatorio 1966- Corvo
and Flores Islands (Azores)
Old Egyptian- Egypt
Old Hawaiian- Mean Value
Oman- Oman
Old Survey Grt BritnEngland, Isle of Man,
Scotland, Shetland Isl.,
Wales
Canary Islands
Germany
Pitcairn Astro ‘67- Pitcairn
Prov So Amricn ‘56Bolivia, Chile,Colombia,
Ecuador, Guyana, Peru,
Venezuela
So Chilean ‘63- S. Chile
Puerto Rico & Virgin Isl.
Qatar National- Qatar
Qornoq- South Greenland
Reunion- Mascarene Island
Rome 1940
RT 90
Santo (Dos)
Sao Braz
Sapper Hill ‘43
Schwarzeck
South American ‘69
South Asia
Southeast Base
Southwest Base
Timbalai 1948
Tokyo
Tristan Astro ‘68
Viti Levu 1916
Wake-Eniwetok
WGS 72
WGS 84
Zanderij
Rome 1940- Sardinia Isl.
Sweden
Santo (Dos)- Espirito Santo
Sao Braz- Sao Miguel,
Santa Maria Islands
Sapper Hill 1943- East
Falkland Island
Schwarzeck- Namibia
S. American ‘69- Argentina,
Bolivia, Brazil, Chile,
Colombia,
Ecuador,
Guyana, Paraguay, Peru,
Venezuela, Trin/Tobago
South Asia- Singapore
Southeast Base- Porto
Santo and Madiera Islands
Southwest Base- Faial,
Graciosa, Pico, Sao Jorge
and Terceira Islands
Timbalai 1948- Brunei and
E. Malaysia (Sarawak and
Sabah)
Tokyo- Japan, Korea,
Okinawa
Tristan Astro 1968- Tristan
da Cunha
Viti Levu 1916- Viti Levu/
Fiji Islands
Wake-Eniwetok- Marshall
World Geodetic System 72
World Geodetic System 84
Zanderij- Surinam
Almanac Data—The satellite constellation information (including location and health of satellites) that
is transmitted to your receiver from every GPS satellite. Almanac data must be acquired before GPS
navigation can begin.
Bearing (BRG)—The compass direction from your position to a destination.
Course Over Ground (COG)—Direction of movement relative to a ground position.
APPENDIX
Glossary
SECTION
E
Crosstrack Error (XTK)—The distance you are off a desired course in either direction.
Desired Track (DTK)—The compass course between the ‘from’ and ‘to’ waypoints.
Differential GPS (DGPS)—An extension of the GPS system that uses land-based radio beacons to
transmit position corrections to GPS receivers.
Estimated Time of Arrival (ETA)—The time of day of your arrival at a destination.
Estimated Time Enroute (ETE)—The time remaining to your destination at your present speed.
Grid—A coordinate system that projects the earth on a flat surface, using square zones for position measurements.
Ground Speed (SOG)—The velocity you are traveling relative to a ground position.
Latitude—A north/south measurement of position perpendicular to the earth’s polar axis.
Longitude—An east/west measurement of position in relation to the Prime Meridian, an imaginary
circle that passes through the north and south poles.
Position—An exact, unique location based on a geographic coordinate system.
Sensitivity—A measure of how sensitive the sounder is to sonar echoes.
Speed Through Water (STW)—The speed you are traveling relative to the water’s surface.
93
Thermocline— A layer of water separating warmer water above from cooler water below.
SECTION
E
APPENDIX
Glossary
Turn (TRN)— The difference and direction in degrees between the bearing to your destination
and your course over ground. The TRN value is used to indicate what direction, and how many
degrees, to turn to get back on course.
Universal Time Coordinated (UTC)— The time of day at the prime meridian (0º longitude) in
Greenwich, England.
Universal Transverse Mercator- (UTM)— A grid coordinate system that projects global sections
onto a flat surface to measure position in specific zones.
Velocity Made Good (VMG)—The speed you are traveling in the direction of the destination.
Waypoint—A specific location saved in the receiver’s memory.
Whiteline—A term applied to the portion of the sonar display which shows the area of
strongest sonar return (typically the bottom).
94
The chart below gives an approximate UTC time offset for the various
longitudinal zones. Check with local charts for more detailed information. If you
are in daylight savings time, add one hour to the offset.
Longitudinal Zone
Offset
W180.0º to W172.5º
W172.5º to W157.5º
W157.5º to W142.5º
W142.5º to W127.5º
W127.5º to W112.5º
W112.5º to W097.5º
W097.5º to W082.5º
W082.5º to W067.5º
W067.5º to W052.5º
W052.5º to W037.5º
W037.5º to W022.5º
W022.5º to W007.5º
W007.5º to E007.5º
E007.5º to E022.5º
E022.5º to E037.5º
E037.5º to E052.5º
E052.5º to E067.5º
E067.5º to E082.5º
E082.5º to E097.5º
E097.5º to E112.5º
E112.5º to E127.5º
E127.5º to E142.5º
E142.5º to E157.5º
E157.5º to E172.5º
E172.5º to E180.0º
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
APPENDIX
Time Offsets
SECTION
F
95
APPENDIX
Loran TD Position Format
SECTION
G
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 will 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 in the Setup TD
field, the active waypoint information will reflect those changes. Since
the GPSMAP 185 Sounder 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.
To change the Setup TD settings:
1. Highlight the ‘Setup TD’ field and press T.
2. Select the field to change and press T.
96
3. Highlight the new setting and press T..
A
Alarm Setup
Anchor Drag Alarm
Antenna Installation
Arrival Alarm
AutoLocate
B
Backlight Level
Beacon Receiver Setup
Bearing
Bearing/Distance Calculation
Boat Icon
Built-in Map Coverage
C
Calibrations, Map
Cancelling Active GOTOs
Capabilities
Cautions
Clock Alarm
Configurations, Map
Contrast Setting
Countdown Timer
Course Deviation Indicator (CDI)
CDI Scales
Crosstrack Error (XKT)93
Cursor Mode
Cursor Movement
D
Data Field Entry
Data Window
Date/Time Formats
Datums
77
77
82
77
1,21-22
3
78-79
93
40
10
2,90
42
59
iii
ii
62
41-42
3,74
77
16
36,76
37-38
11,38
13
62
74
90-92
Definitions
Desired Track (DTK)
Depth Contours
Depth Units
Dilution of Precision (DOP)
DGPS Setup
DGPS Status
93-94
93
75
75
21
78-79
21
E
Entering Initial Position
Estimated Position Error (EPE)
Estimated Time of Arrival (ETA)
Estimated Time Enroute (ETE)
2,22
21
45,93
45,93
F
Full Page Mapping
G
Micro G-chart Cartridges
GOTO Key
Ground Speed
H
APPENDIX
Index
41
80-81
12,58-59
93
H
Heading Selection
Highway Scale
75-76
16,46
I
Initialization
Installation
Interface Options
Interface Setup
Interval, Track Storage
1-2
82-85
78
78-79
70
K
Keypad Tone
SECTION
74
97
APPENDIX
Index
98
SECTION
H
Keypad Usage
viii
L
Local Time Offset
74
M
Magnetic Variation
Main Menu
Man Overboard Function
Map Calibration
Map Configuration
Map Datum List
Map Datum Selection
Map Page
Map Scales
Map/Sounder Split Screen
Marking a Position
Measuring Bearing & Distance
Menu Selection
Message Descriptions
Messages, Viewing
75-76
48
60
42
41-42
90-92
76
36-44
39
29,43
6,49-50
40
18
88-89
1
N
Navigation Page
Navigation Setup
Navigation Units
NMEA Formats
NMEA Setup
No Map Mode
15-16,45-47
75
75
86
78-79
39
O
Offset, local time
Operation Setup
Overzoom Mode
95
73-75
39
P
Packing List
Page Sequence
Physical Specifications
Point-to-Point Planning
Position Format
Position Mode
Position Page
Velocity Filters
Power Off
Power On
Proximity Alarm
vi
5
87
71
75
37
23-24
76
19
1
56
R
Removing Micro G-chart Cartridges
80
Routes
62-69
Activating A Route
65
Active Route Page
17,68-69
Clearing
67
Copying
67
Creating
62
Deactivating
65,67,69
Editing By Text
64-65
Editing Graphically
63
Modifying Route Waypoints
63-65
Modifying Routes
63-67
Moving Route Waypoints
63
Removing Route Waypoints
65
Reviewing Routes
63
Route Comments
66
Route Planning Mode
72
Stopping Route Navigation
17
S
Satellite Acquisition
Satellite Sky View
Signal Strength Bars
Simulator Mode
Simulator Tour
Sounder Page
Chart Speed
Fish Id
Keel Offset
Map/Sounder Split Screen
Noise Rejection
Range Modes
Auto
Manual
Window
Sensitivity
Sounder Setup
Speed Calibration
Thermocline
Transducer
Underwater Waypoint
Water Type
Whiteline
Zoom Function
Zoom Window Movement
Status Bar
Status Page
Steering Guidance
Sunrise/Sunset Calculation
T
Table of Contents
Time Offsets
Timer/Alarm Setup
Tone Selection
TracBack Function
2,20-21
20
2,20
4
4-19
7-9,25-35
30
32
33
29,43
33
25,30
25-26
25-26
25,31
30,93
32-35
33-35
7,25,94
vii,7,25,84
7-8,28-29
33
7,25,30,94
9,27-28
28
3
20-22
16,45-47
73
vii
73-74,95
77
74
60-61
Track Log
Track Memory
Track Plot Resolution
Track Recording
Transducer Installation
Trip Odometer
Turn (TRN)
70
70
70
70
86
23-24
31,47,94
U
Units of Measure
UTC time
UTM/UPS Coordinates
75
74,95
95
V
Velocity Filter
Velocity Made Good (VMG)
W
Waypoints
Active Waypoints
Creating
Deleting
Editing By Text
Editing Graphically
Modifying
Moving Route Waypoints
Nearest Waypoints
Proximity Waypoints
Reference Waypoints
Removing Route Waypoints
Renaming
Reviewing
Submenus
Underwater Waypoints
Waypoint List
Wiring Installation
SECTION
H
APPENDIX
Index
76
31,47,94
49-57
68
49-52
54
53
54
53-55
63
55
56
52
65
54
53
55
7-8,28-29
57
96
99
© 1999 GARMIN Corporation
www.garmin.com
Garmin International, Inc., 1200 E. 151st Street, Olathe, KS 66062 USA Tel: 913-397-8200 FAX: 913-397-8282
Garmin (Europe) Ltd., Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey SO51 9AQ UK Tel: 011-44-1794-519944 FAX: 011-44-1794-519222
Garmin (Asia) Corp., 3F, No. 1, Lane 45, Pao Hsing Road, Hsin Tien, Taipei, Taiwan R.O.C. Tel: 011-886-02-2917-4107 FAX: 011-886-02-2917-1758
Part Number 190-00158-10 Rev. A
Printed in Taiwan