(en)
SN3500 EHSI
Navigation Display
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Pilot’s Guide
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SANDEL SN3500 EHSI PILOT'S GUIDE
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PAGE II
subject to all legal and operational limitations of the equipment
supplying data to it. Always refer to your approved Aircraft Flight
Manual Supplement for operation and limitations on the use of
installed equipment.
Pilot information
Publication Date: November 17, 2005
This guide provides information on the use and operation of the
SN3500 EHSI.
Information in this manual is current as of publication or revision
date. Specifications and operational details are subject to change
without notice at the discretion of Sandel Avionics, Inc.
Copyright
Copyright 2005 Sandel Avionics, Inc.
May be covered by one or more U.S. and foreign pending and
issued patents including U.S. Patent Numbers 6,750,788,
6,670,892, 6,507,288 and 6,259,378.
All rights reserved. No part of this manual may be reproduced,
stored or distributed without written permission of Sandel Avionics,
Inc. Additional copies of this manual are available from:
Note: Because aircraft vary in their installed equipment, it is
important to note that what is displayed on the SN3500 may vary
depending on the presence or absence of equipment.
Please keep in mind that it is required by Federal Aviation
Regulations to have on board current charts appropriate to the
flight. The moving map on the SN3500 does not fulfill this
requirement. A current internal database is not required but is
recommended. The internal database supplies supplemental data
only (such as nearest airports, navaids and airspace). Flight plan
waypoints and IFR approaches are supplied to the SN3500 by the
associated IFR approved GPS receiver. Supplemental data is
intended for positional awareness only and should not be used for
primary navigation.
Approvals
Sandel Avionics, Inc.
2401 Dogwood Way
Vista, CA 92081
USA
Tel: (760) 727-4900
Fax: (760) 727-4899
www.sandel.com
The FAA has approved the SN3500 under the following TSO:
Revision notice
Installation of the SN3500 EHSI in a type-certificated aircraft must
be performed in accordance with the Sandel SN3500 EHSI
Installation Manual, document number 82005-IM applicable revision.
TSO-C113 AMED (Airborne Multipurpose Electronic
Displays)
The following certification levels also apply to this product:
Environmental Certification Level: DO-160-D
Software Certification Level: DO-178B level C
The “Effectivity, Errata, and Revision History” allow the use of this
Pilot Guide with a specific software release.
The “Effectivity,
Errata, and Revision History” specifically lists the software to which
this Pilot’s Guide applies and corrects any errors or omissions in this
revision of the Pilot’s Guide. Document number 82005-PG-ERR,
Effectivity, Errata, and Revision History” can be found on page IX of
this Pilot’s Guide.
Operational and legal issues
The information displayed on the SN3500 is generated by external
equipment. It is the pilot’s responsibility to ensure the correct
configuration and use of the external equipment. The SN3500 is
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Conventions Used in This Manual
The name of a button is placed within square brackets when the
button is described in text. For example, “…press the [VUE]
selection button to …”
This manual uses terms, which should be familiar to aviationminded readers, such as “selected radial” and “magnetic heading”.
Terms, which are specific to the SN3500, will be placed in the
glossary.
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CHAPTER 5 BEARING POINTERS
Table of Contents
Pilot information
Copyright
Revision notice
Operational and legal issues
Approvals
Conventions Used in This Manual
Table of Contents
Table of Figures
Effectivity, Errata and Revision History
CHAPTER 1 WELCOME TO THE SN3500 EHSI
What is the SN3500
CHAPTER 2 DISPLAY OVERVIEW
SN3500 Physical Features
Display Areas
Indicators
Data Color Coding
CHAPTER 3 BASIC OPERATION
Overview
Power-up Displays
Selecting the Data
Selecting the Primary NAV Source
Selecting and Displaying Bearing Pointers 1 & 2
Displaying the Map Data
360-degree FULL View and 70-degree ARC View
Auto-Slewing the Course Pointer
Heading Bug Sync
Course Pointer Sync
Transitioning from GPS/FMS to ILS
MEM Function
Display and Button Brightness
iii
iii
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ix
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CHAPTER 4 NAV OPERATION
4-4
GPS Mode Selection
Auto-Slew Function
Course Pointer Display Function
4-4
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Bearing Pointers
BRG Menu
5-4
5-4
CHAPTER 6 MAP OPERATIONS
Overview
Internal Database
Map Controls and Displays
Map Memories
MAP DATABASE ITEMS
Getting Started - Example
Map Setup
Map Memory Settings
Storing Settings into Preset Memories 1-4
Removing a Map Memory from the Rotation Sequence
Restoring Default Settings
Copying Map Settings into the Scratchpad
Automatic Decluttering
Maximum Range of Internal Map Data
Clearing the Map Display
CHAPTER 7 WEATHER DISPLAY INTERFACE
WX-500 Stormscope® Data
WX Menu
FIS-B Datalink Weather
General Operation
Precipitation Intensity
FIS-B Lightning
FIS-B Services Backgrounder
Examples
CHAPTER 8 TRAFFIC DISPLAY INTERFACE
Traffic Symbology
Relative Altitude
Absolute Altitude vs. Relative Altitude
Traffic Display Mode
Altitude Mode
Traffic Overlay with Moving Map
TFC Menu
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PAGE VI
CHAPTER 9 FLAGS AND ABNORMAL CONDITIONS
CHAPTER 10 MESSAGES
9-4
10-4
CHAPTER 11 TECHNICAL SPECS AND OPERATING LIMITS11-4
CHAPTER 12 INSTALLATION INFORMATION
12-4
CHAPTER 13 GLOSSARY
13-4
CHAPTER 14 AVIONICS ACRONYMS
14-4
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Table of Figures
Figure 2-1 SN3500 physical features
Figure 2-2 Display areas
Figure 3-1 Introduction screen
Figure 3-2 SN3500 display with compass card
Figure 3-3 NAV source annunciations
Figure 3-4 Full view
Figure 3-5 Arc view
Figure 3-6 Brightness menu
Figure 4-1 NAV menu
Figure 4-2 Auto-Slew setup menu
Figure 4-3 Course pointer setup menu
Figure 5-1 BRG main menu
Figure 6-1 Map operation
Figure 6-2 Map setup menu
Figure 6-3 Select "AIRSPC"
Figure 6-4 Select "ON"
Figure 6-5 Storing settings
Figure 6-6 Removing map memory
Figure 6-7 Restoring default settings
Figure 6-8 Copying map settings
Figure 7-1 WX-500 Stormscope display
Figure 7-2 WX setup menu
Figure 7-3 Display menu
Figure 7-4 WX-500 mode menu
Figure 7-5 LTNG SRC mode menu
Figure 7-6 FIS-B weather display
Figure 7-7 Precipitation
Figure 7-8 FIS-B lightning strike age
Figure 7-9 FIS-B information flow
Figure 7-10 Precipitation example
Figure 7-11 Visible moisture observed
Figure 7-12 No visible moisture observed
Figure 7-13 Between layers
Figure 8-1 SN3500 with traffic
Figure 8-2 Traffic with moving map
Figure 8-3 ON AUTO menu
Figure 8-4 Altitude range menu
Figure 8-5 Altitude as flight level menu
Figure 9-1 Messages
Figure 10-1 Message and "ACK" button
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PAGE VIII
revised colors
Effectivity, Errata and Revision History
Date:
Revision:
Applies to:
• Page 2-3: Updated paragraph
on Course Pointer
11/17/05
3.00
SN3500 Software 3.00
SN3500 Pilot’s Guide 82005-PG-D
• Pages 2-5 & 2-6: Updated table
to reflect revised colors
• Page 3-6: New paragraph
“Transitioning between
GPS/FMS and ILS”
With the exception of the superseding information contained in this
section, operation of the SN3500 is as described in the SN3500
Pilot’s Guide referenced above.
Revision
Date
• Chapter 7 added paragraph on
color of Stormscope data
Comments
• Chapter 8 added to reflect new
traffic interface option
Updated for software version 3.00
• Chapter 9 revised to expand
description of gyro/fluxgate flags
and add description of traffic
flags
• Illustrations updated to remove
menu "M" icon on displays
• Page 2-1: Added traffic and FISB datalink weather
• Page 3-1: Updated illustration to
show map revision letter
• Page 3-2: Added traffic and WSI
D
11/17/05
• Page 3-6: Revised paragraph on
Transitioning from GPS/FMS to
ILS
B
6/24/05
Commercial Release
A
4/19/05
Initial Release
No errata applicable to this release.
• Page 3-7: Revised display
brightness operation
• Chapter 7 expanded to include
FIS-B datalink weather
description
• Page 8-4: Eliminated "NM" icon
for normal mode operation
• Page 9-1: Removed reference to
menu icon.
• Page 14-2: Added FIS-B
C
9/13/05
Updated for software version 2.01
• Illustrations changed to reflect
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WELCOME TO THE SN3500 EHSI
CHAPTER 1
WELCOME TO THE SN3500 EHSI
WELCOME TO THE SN3500 EHSI
What is the SN3500
For years, pilots of large commercial aircraft have appreciated the
benefits of Electronic Flight Instrumentation Systems, commonly
known as EFIS. Full EFIS systems combine data from different
sources within the aircraft and provide the pilot with a unified
display. This greatly simplifies the instrument scan and improves
situational awareness.
The Sandel SN3500 Electronic Horizontal Situation Indicator, or
EHSI, packs the essential features of an EFIS NAV display into a
standard three-inch instrument, but at a fraction of the cost of a
traditional EFIS. By combining the functions of an HSI, an RMI, a
moving map and a Stormscope® display into one instrument, the
SN3500 ties together the critical elements of situational awareness.
And by adding to that a 3-light marker beacon and GPS annunciator
displays, the SN3500 becomes the virtual equivalent of an EFIS
NAV display, sized and priced for general aviation cockpits.
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The SN3500 EHSI uses Sandel’s patented rear-projection display
technology. This technology allows the displayed image to extend
to the edges of the instrument’s bezel. This provides an image
approximately the size of a four inch primary display in a three inch
form factor.
Internally, the SN3500 uses high-speed digital converters that allow
it to receive signals from virtually every type of navigation receiver
ever installed in general aviation aircraft. A comprehensive set of
maintenance pages allows the installer to simply specify the make
and model of the installed equipment, and the SN3500 will configure
itself accordingly.
The SN3500 shatters the price and size barriers of traditional EFIS
systems. With a full color display and a simple intuitive user
interface, the SN3500 brings high-end EFIS functions to the general
aviation cockpit.
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DISPLAY OVERVIEW
CHAPTER 2
DISPLAY OVERVIEW
Upper
display
area
DISPLAY OVERVIEW
SN3500 Physical Features
The SN3500 EHSI physical layout consists of a full three inch
display, eleven backlit pushbuttons, two knobs with push to select,
and one USB connector.
Primary
display
area
Lower
display
area
Figure 2-2 Display areas
The upper display area presents data from the selected course
navigation instrument. The data displayed depends upon the
navigation source (VOR/DME or GPS) but it will generally include
bearing, distance, and ground speed, if available. The upper
display area also includes information on the map status, WX-500
Stormscope® status (if installed), and an annunciation on whether
the VOR NAV display is currently receiving either a localizer or a full
ILS (localizer/glideslope) signal.
Figure 2-1 SN3500 physical features
The following section of the manual describes the appearance of
the SN3500 display and identifies each functional element. Detailed
descriptions of these elements and a tutorial guide to their use are
presented in later sections.
Display Areas
The primary display area shows either a 360-degree FULL view or a
70-degree ARC view, as indicated by the white compass ring. The
white airplane or triangle represents the aircraft’s current position.
The primary display area may also depict the current GPS flight
plan, airports, navaids, intersections, airspace, traffic, FIS-B datalink
weather and/or Stormscope® data if the map feature has been
enabled. Several indicators (see below) are also presented within
the primary display area.
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The lower display area presents the numeric data associate with the
two bearing pointers. This includes the NAV source, bearing and
distance (if available). The right section of this area contains a
display of the marker beacon lights if configured. The left section
includes GPS annunciators, if configured.
Indicators
Several different symbols, or indicators, are used in each of the
display areas. These are described below:
Lubber line [white]: Points to the magnetic heading. It is
always at the top of the display.
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DISPLAY OVERVIEW
DISPLAY OVERVIEW
Heading bug [white]: This can be set to a desired
heading by rotating the Heading Select knob (right knob).
Pressing the Heading Select knob will SYNC the heading bug with
the lubber line, allowing the pilot to immediately set the heading bug
to the current heading.
Inner Course and Vertical Deviation Indicators: The course
deviation indicator bar (CDI; also known as the deviation bar or “Dbar”) is the movable center section of the course pointer that depicts
deviation to the left or right of course. The vertical deviation
indicator bar (VDI) is the movable center section that depicts vertical
deviation above or below glideslope or GPS final approach path.
The VDI is only available when tuned to a
glideslope or a vertical deviation from the
GPS. Note that the inner CDI and VDI
are not visible when the map display is
Inner CDI
Outer VDI
enabled.
Parked heading bug: When the display is in
the 70-degree ARC mode using the [VUE]
button, it is possible for the heading bug to be
positioned off of the screen. When this happens,
the heading bug “parks” at the side of the screen
nearest to its actual position, with the symbol
displayed smaller than normal and close to the
edge of the screen.
Course pointer: By rotating the Course Select knob (left
knob), you can set the course pointer to the desired course to
a VOR NAV source. When a long-range NAV source is
selected, the course pointer can automatically rotate to the desired
track being sent by the NAV source (i.e. “Auto-slew”). A unique
course pointer setting is maintained for each NAV source selection.
Parked course pointer: When the display is in
the 70-degree ARC mode, it is possible for the
head of the course pointer to be positioned off of
the screen. When this happens, the course
pointer “parks” at the side of the screen nearest
to its actual position, with the symbol displayed
smaller than normal and close to the edge of the
screen.
Outer Course and Vertical Deviation
Indicator: The CDI and VDI are also
repeated at the bottom and right side of
the display – this is referred to as the outer
CDI and outer VDI.
Inner VDI
Outer CDI
Back course: When flying a back
course approach, the course pointer
should be set to the published front course.
The CDI will automatically reverse sense
when the course pointer is more than +/- 90
degrees from the lubber line. The label “BC”
will appear above the CDI and a yellow “X” will
block the outer VDI during a back course
approach as a reminder to the pilot as shown
in the adjacent figure.
Bearing pointers 1 and 2: Two bearing pointers are
`provided. Bearing pointer 1 (BRG1) is represented
by the closed tip arrowhead symbol. Bearing pointer 2 (BRG2) is
represented by the open tip arrowhead symbol. Depending on the
user-selected settings, these pointers may show the bearing to a
VOR, ADF, or GPS waypoint. The numeric information from the
instruments assigned to these pointers is displayed in the lower
display area. The information is displayed in the same color as the
associated bearing pointer. Also note that the tail of each pointer
can be used to determine the bearing from the selected NAV
source.
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DISPLAY OVERVIEW
Data Color Coding
DISPLAY OVERVIEW
Color
Data displayed on the SN3500 is color coded as follows:
RED
Color
Data displayed
•
GREEN
CYAN
WHITE
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Information associated with the primary VHF
NAV1 receiver (or NAV2 if in co-pilot
configuration)
AMBER
Data displayed
•
Flags indicating failed glide slope or CDI data
•
Prohibited airspace
•
GPS annunciators: MSG and WPT. Also
HOLD (Garmin only)
•
Compass rose when either gyro or fluxgate
has failed
•
GPS annunciators: ACTV, AUTO and LEG
•
Class B and C airspace
•
Middle marker indicator
•
Stormscope® data older than 30 seconds
•
•
Information associated with the LNAV
(GPS/FMS) receiver text
Information associated with the cross-side
NAV receiver (NAV2 if in the pilot
configuration, NAV1 if in the co-pilot
configuration)
•
GPS annunciators: HLD, PTK and APPR (II
Morrow GPS only)
•
Restricted and warning areas
•
Map status bar icons
•
Flag indicating invalid glide slope
•
Moving map icons
•
Marker test
•
Traffic range ring
•
Decluttered map status icons
•
Current position symbol, either airplane or
triangle
•
Active leg and waypoint of flight plan
•
ADF bearing pointers
•
Map range
BLUE
•
Outer marker indicator
PURPLE
•
MOA
•
Compass rose under normal conditions
•
Magnetic heading and button labels
•
Non-active legs and waypoints of flight plan
•
To/From indicator
•
Inner marker indicator
•
Heading bug and associated data
•
Traffic targets
•
New Stormscope® data
SANDEL SN3500 EHSI PILOT’S GUIDE
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YELLOW
MAGENTA
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BASIC OPERATION
CHAPTER 3
BASIC OPERATION
BASIC OPERATION
Mag . heading
To /from
indicator
Overview
The SN3500 is configurable and controllable to provide the
information needed at any point in the flight. Configuring the
SN3500 refers to selecting the data for a given display. For
example, either the VOR or the GPS receiver can drive a bearing
pointer. Controlling the SN3500 refers to tailoring the display to suit
the immediate situation. For example, the pilot may decide to turn
off a bearing pointer completely during the enroute portion of the
flight and use it only during an approach.
Heading bug
Course
pointer
DME
groundspeed
DME distance
Selected
course
Selected
heading
Current NAV
source
Bearing
pointer 1
Power-up Displays
On initial power-up, a short introduction screen will be displayed
which includes the software and database versions.
Bearing
pointer 2
Bearing
pointer 1
source and
bearing
Bearing
pointer 2
source and
bearing
Figure 3-2 SN3500 display with compass card
Selecting the Data
Sensor data is data that comes from avionic sources within the
aircraft. This includes primary navigational instruments as well as
sensors. The SN3500 can display data from the following sources:
• Compass system (directional gyro and fluxgate)
• NAV1 and NAV2 receivers
• LNAV1 and LNAV2 receivers (GPS/FMS)
• DME1 and DME2
Figure 3-1 Introduction screen
• ADF1 and ADF2
After a few seconds this display will be removed and the compass
card will be shown as below:
• Marker beacon receiver
• Weather detection (WX-500 Stormscope® and/or WSI)
• Traffic
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BASIC OPERATION
BASIC OPERATION
Heading data from the directional gyro and fluxgate compass is
always applied directly to the SN3500’s compass card display, while
other types of sensor data can be displayed in several different
ways. You can control these displays by configuring the course
pointer, the bearing pointers, the map data and the weather data.
In some installations, the ILS Lockout function may be enabled on
the SN3500. This function forces the selection of the NAV receiver
when an ILS frequency is selected. Refer to the Aircraft Flight
Manual Supplement to see if the ILS Lockout function has been
enabled in the aircraft being operated.
Selecting the Primary NAV Source
The SN3500’s course pointer and CDI can be driven from VOR or
GPS data.
In some installations, the [NAV] button on the SN3500 is used to
select the primary NAV source. In others, an external switch
performs this function and the [NAV] button has no effect. Refer to
the Aircraft Flight Manual Supplement for the details of the
installation. If external switching is used, this section does not
apply.
Pressing the [NAV] button will cycle through the available choices,
which are specific to your aircraft and were configured during
installation. Selecting a primary navigation source also connects it
to the autopilot, if configured.
The current NAV source selection will be annunciated next to the
NAV button as shown below.
While NAV1 is tuned to an ILS frequency and the ILS Lockout is in
effect, pressing the [NAV] button will not change sources. Instead,
the following message is displayed: “NAV TUNED TO ILS”. To
defeat the override and restore the function of the [NAV] button,
simply select a non-ILS frequency in the NAV1 receiver.
Selecting and Displaying Bearing Pointers 1 & 2
To display the bearings pointers, press [BRG] to cycle through
available selections. In addition to no bearing pointer display, there
are three selections:
•
Push [BRG] once:
Bearing pointer 1 only
•
Push [BRG] twice:
Bearing pointer 2 only
•
Push [BRG] third time: Bearing pointers 1 and 2
Details about the bearing pointers are in Chapter 5 of this Pilot’s
Guide.
Displaying the Map Data
Map data consists of flight plan waypoints from the LNAV receiver
(GPS/FMS), as well as nearby airports, navaids, intersections and
airspace from the SN3500’s internal database. The different
categories of map information can be enabled or disabled
individually.
Figure 3-3 NAV source annunciations
Depending on the configuration of the aircraft, the available choices
are NAV1, NAV2, GPS1, GPS2, FMS1 and FMS2. If the selected
NAV source is a VOR receiver tuned to a localized frequency, the
annunciation will be either LOC1 or LOC2. If a valid glide slope
signal is detected then the annunciation will be either ILS1 or ILS2.
Numeric data from the primary NAV source, such as distance,
bearing and groundspeed will be displayed in the upper display area
if available.
To display the map data, press [MAP] to cycle through the available
map memory locations. The currently displayed map memory
setting is displayed next to the MAP button. In addition to the no
map data display, there are three default map memory settings.
These setting are shown below with the displayed map status bar
icons:
Map Memory 1: [no icon]
GPS/FMS flight plan
Map Memory 2:
Airports, Airspace, and GPS/FMS flight plan
Map Memory 3:
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VORs and GPS/FMS flight plan
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BASIC OPERATION
BASIC OPERATION
When map data is being displayed, press [ ⇑ ] or [ ⇓ ] to increase or
decrease the map range respectively. The currently selected map
range is displayed in the upper right display area in magenta. The
value of the map range represents the distance from the aircraft
symbol to the outer edge of the compass rose.
especially useful when flying a complex flight plan as it eliminates
the burden of manually setting the course pointer for each leg of the
flight plan.
Map operation is covered in more detail in Chapter 6.
360-degree FULL View and 70-degree ARC View
The SN3500 allows the pilot to switch between a traditional 360degree FULL view of the compass rose and a forward-looking 70degree ARC view. The ARC view places the airplane symbol at the
bottom of the screen and the top 70-degrees of the compass rose is
displayed. The ARC view maximizes the display of the ground track
ahead of the aircraft and provides the greatest amount of screen
area for map data.
When auto-slew is activated and a GPS/FMS is selected as the
NAV source, rotating the course select knob will have no effect on
the course pointer. The message ‘AUTO – SLEW ACTIVE” will be
displayed in the center display area.
Note that certain GPS receivers such as the KING KLN-90 and
Garmin GNS 430/530 support an “OBS” or “HOLD” mode which will
override auto-slew when active.
The auto-slew function is enabled/disabled in the NAV menu as
described in Chapter 4.
Heading Bug Sync
To rapidly set the heading bug to the aircraft’s current heading,
press and release the Heading select knob.
Course Pointer Sync
To rapidly set the course pointer to the current direct-to course,
press and release the course select knob.
When no valid course information is available, such as when flying a
LOC/ILS approach, pressing the course select knob inwards will
rotate the course pointer to the current heading.
Transitioning from GPS/FMS to ILS
Figure 3-4 Full view
Figure 3-5 Arc view
Press [VUE] to switch between the 360-degree and 70-degree ARC
views. This action only affects the screen display – all navigation
sources, bearing pointers, and other settings remain the same.
Auto-Slewing the Course Pointer
One unique feature of the SN3500 is its ability to automatically
rotate the course pointer to the desired course being sent digitally
from the GPS/FMS. This feature is called “auto-slew”, and is
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During an ILS approach, when the selected NAV source changes
from GPS/FMS to LOC/ILS, it may be necessary to rotate the
course pointer to the proper inbound course setting. The course
pointer is NOT set automatically by the SN3500.
MEM Function
The SN3500 maintains two different groups of
display configuration memories that are toggled
by pressing [MEM]. By pressing the [MEM], one
can rapidly swap back and forth between the
two display configurations. This allows the pilot to set up a
particular screen display and easily access the settings for later use.
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BASIC OPERATION
The MEM Function remembers the last settings prior to pressing
[MEM].
For example, a preferred “enroute” setup might be 70-degree ARC
view with only bearing pointer 1 displayed, connected to a VOR
Navaid. The “approach” setup might be 360-degree view with
bearing pointer 2 displayed, connected to an ADF. To configure
these two screens, first set up the “enroute” screen with the proper
settings. Then press [MEM] to toggle to the second screen. The
second screen can now be configured with the “approach” settings.
Press [MEM] to toggle between the two screens configured for
“enroute” and ‘approach”.
BASIC OPERATION
To rapidly change display to full brightness, press and hold [CLR]
until the display changes to full brightness. Power cycling the
SN3500 will also return the unit to full brightness.
Pressing and holding the [MEM] button will cause the two memories
to have the same display settings. “COPY MEM” will be displayed
momentarily to confirm this action.
Display and Button Brightness
Both the display and button backlight brightness can be controlled
through the menu. The display brightness “BRT” and the button
backlight brightness “BTN” are adjusted using the same technique
as follows.
.
Figure 3-6 Brightness menu
•
Press [M] to activate menu mode.
•
Press [CLR] to display the brightness menu.
•
Rotate left knob until “BRT” (for display brightness) or “BTN”
(for button brightness) is highlighted in the far left column.
•
Turn the Right knob to increase (larger number) or
decrease (smaller number) the brightness to the desired
level.
•
Press [M] to exit the menu and return to normal operation.
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NAV OPERATION
CHAPTER 4
NAV OPERATION
Options are AUTO and OFF. When set to auto, the course pointer
cannot be set manually if the GPS/FMS is navigating on a flight plan
or a direct-to course.
NAV OPERATION
GPS Mode Selection
GPS/FMS units can be set for automatic or manual sequencing of
waypoints in the active flight plan. This can be set on the SN3500
through the NAV Menu or may be available on an external switch.
Figure 4-2 Auto-Slew setup menu
•
Press [M] to activate menu mode.
•
Press [NAV] to display the NAV menu.
•
Rotate the left knob until “SLEW” is highlighted in the far left
column.
•
Turn the Right knob to select the desired option on the right.
•
Press [M] to exit the menu and return to normal operation.
Course Pointer Display Function
Controls the display of the course pointer when GPS is selected as
the NAV source and the moving map is displayed. Options are
AUTO and ON. When set to AUTO, the course pointer is removed
when the flight plan waypoints and course lines are displayed. This
reduces the on-screen clutter. The course pointer will be displayed
momentarily when the course select knob is turned.
Figure 4-1 NAV menu
•
Press [M] to activate menu mode.
•
Press [NAV] to display the NAV menu.
•
Rotate the left knob until “GPS MODE” is highlighted in the
far left column.
•
Press the Right knob to toggle the setting between “AUTO”
and “OBS”. (Note: The terminology may differ according to
the model of GPS/FMS interfaced to the SN3500.)
•
Press [M] to exit the menu and return to normal operation.
Figure 4-3 Course pointer setup menu
Auto-Slew Function
•
Press [M] to activate menu mode.
Auto-slew function enables the automatic operation of the course
pointer when a GPS/FMS is selected as the main NAV source.
•
Press [NAV] to display the NAV menu..
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NAV OPERATION
•
Rotate the left knob until “CRS PTR” is highlighted in the far
left column.
•
Rotate the heading bug knob to select the desired option.
•
Press [M] to exit the menu and return to normal operation.
NAV OPERATION
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BEARING POINTERS
CHAPTER 5
BEARING POINTERS
BEARING POINTERS
BRG Menu
Bearing Pointers
The SN3500 provides two independent bearing pointers which
function in much the same way as a traditional radio magnetic
indicator (RMI). The head of each bearing pointer indicates the
bearing to the NAV source. The tail of each pointer indicates the
bearing from the NAV source. Either pointer can be driven by any
navigation source interfaced to the SN3500: VOR, GPS/FMS, or
ADF. When a GPS/FMS is selected as the bearing pointer source,
the bearing pointer indicates the bearing and distance to the current
active waypoint.
The NAV sources for the bearing pointers are selected using the
BRG menu function.
To display the bearings pointers, press [BRG] repeatedly to cycle
through displaying bearing pointer 1 only, displaying bearing 2 only,
displaying both bearing pointers 1 & 2 and disabling both bearing
pointers.
The color of each bearing pointer, and its associated numeric
display, follow the color-coding when on-side:
ADF:
Magenta
GPS:
Cyan
VOR:
Green (NAV1), Yellow (NAV2)
Figure 5-1 BRG main menu
The cross-side color of the bearing pointer, and its associated
numeric display, is yellow when NAV1 is selected and green when
NAV2 is selected.
The digital numeric bearing to the navigation source of the bearing
pointer is displayed at the bottom of the screen. When the data is
invalid, “---“ is displayed and the associated bearing pointer is
removed from the screen. The selected bearing pointer name is
displayed above the numeric bearing display.
•
Press [M] to activate menu mode.
•
Press [BRG] to display the BRG menu
•
Rotate the left knob to select BRG1 or BRG2 in the left
column.
•
Rotate the right knob to select the desired option.
•
Press [M] to exit the menu and return to normal operation.
Note. Certain ADF receivers may not supply an “invalid” signal. In
these cases, the receiver will “park” the needle, usually 90° to the
right of the lubber line, when no signal is being received. See the
Pilot’s Guide for your navigation receiver to determine its capability
during “No-signal” operation.
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MAP OPERATIONS
CHAPTER 6
plan waypoints and course line come from the database in the
GPS/FMS and are color-coded magenta or white.
MAP OPERATIONS
Overview
MAP operations allow you to display navigation information in the
form of a “moving map” directly on the SN3500 display. You have
extensive control over what kinds of navigation information are
displayed on the map:
•
Airports and Runways
•
Controlled and Special Use Airspace
•
VORs
•
NDBs
•
Intersections
•
GPS Flight Plans and Approaches
MAP OPERATIONS
Note: The SN3500 requires a connection to a GPS/FMS receiver in
order to display the moving map. The map display, including the
flight plan from the GPS1 receiver, will also be shown when NAV1
or NAV2 is selected as the primary NAV source.
Internal Database
Non-flight plan data including airspace is referred to as the “internal
database” and is stored in the SN3500’s internal memory. The
internal database can be periodically updated from a Windowsbased PC. The expiration date of the internal database is shown
during the power on sequence. Database updates are available
directly from Sandel Avionics, and may be purchased at
www.sandel.com by your dealer. As this database is for
supplemental use only and not intended for primary navigation,
there is no requirement to update it.
Within each of these classes of map objects you may fine-tune
exactly which items you want displayed. For example, you may
choose to exclude military or private airports, or those with unpaved
runways or runways shorter than a particular length. Similarly, you
may elect not to display terminal VORs or low-powered NDBs, or to
display Class B airspace and Restricted Areas but exclude Class C
airspace and MOAs. As you will see, the SN3500 offers great
flexibility in how you configure your moving map display.
Finally, you may store up to four different map configurations, and
then quickly switch from one to another as appropriate to your
phase of flight. For instance, when cruising at FL180 or higher, you
might want to display only high-altitude VORs, Special Use Airspace
and airports with paved runways of 6,000 feet or longer. The
SN3500 allows you to save such a map configuration in one of four
map memories and then recall it as needed.
Map Controls and Displays
Information associated with control of the map is displayed as
follows:
•
The map status bar is shown just to the right of the MAP
button and shows icons for the currently enabled map
items.
•
The map memory location currently being displayed is
shown at the top of the map status bar as “1”, “2”, “3”, “4” or
“S”.
All the airports, navaids and intersections on the moving map,
except for the GPS/FMS flight plan waypoints, come from the
internal database of the SN3500 and are color-coded cyan.
Controlled and Special Use Airspace also comes from the SN3500’s
internal database and are color-coded according to its type (Class B
and Class C in green, MOAs in purple, Restricted and Warning
Areas in yellow, and Prohibited Areas in red.) The GPS/FMS flight
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MAP OPERATIONS
MAP OPERATIONS
The map setup function, described below, shows how to make
changes to the map memories. The following table lists the items
that can be independently configures for each map memory.
There are a large number of selection items. However, the
organization of the SN3500 is intended to make the map setup
process as easy as possible. You should experiment with the map
settings until you develop the style of operation best suited for your
flying.
MAP DATABASE ITEMS
Figure 6-1 Map operation
Map operations are controlled with the following buttons:
•
•
[MAP] - Press repeatedly to cycle through the map memory
locations and no MAP.
Airports
[ ⇑ ] and [ ⇓ ] - Press to zoom the map range in or out.
Press and hold the [ ⇑ ] button to auto-range the map to the
current waypoint. Press and hold the [ ⇓ ] to auto-range
the map to the final waypoint.
The [MAP] button cycles from MAP off through a maximum of four
possible map memory locations, or memories, plus a scratchpad
memory. The map memory that you are currently displaying is
shown at the top of the map status bar and will show 1, 2, 3, 4 or S.
Any memory that is empty is skipped during the MAP rotation
sequence. In the default setup of the SN3500, memories 1, 2 and 3
contain default settings, and memories S and 4 are empty.
Map memory S has been designated the scratchpad memory and
the remaining memories 1-4 are designated as preset memories.
All on-screen changes are made to S but can be copied to
memories 1-4 as desired. The purpose of having a separate
scratchpad is to allow you to quickly add or delete items from your
map display to attend to a current flight situation, without changing
presets previously made.
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NDBs
VORs
Intersections
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Color
Civil
CIVIL
Cyan
Military
MIL
Cyan
Private
PRIV
Cyan
MIN LEN
n/a
Grass Surface
GRASS
n/a
Other Surface
OTH SFC
n/a
Outer Marker
OM
Cyan
Low Power
L PWR
Cyan
High Power
H PWR
Cyan
High Level
HI LV
Cyan
Low Level
LO LV
Cyan
Terminal
TERM
Cyan
TACAN
TACAN
Cyan
Enroute
ENRT
Cyan
Runway Length
Map Memories
Setup Menu
Label
Item
Status bar icons
1
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MAP OPERATIONS
2: Airports, Airspace, and GPS/FMS flight plan
MAP DATABASE ITEMS
GPS/FMS Flight
Plan
Setup Menu
Label
Color
SIDS
Cyan
STAR
STARS
Cyan
Approach
APPR
Cyan
Flight Plan Course
Line
GPS FPL
Active Leg:
Magenta
2
FPL SYM
Other Legs: White
Class B
B
Green (dashed)
Class C
C
Green (dotted)
MOA
MOA
Purple (dotted)
Restricted
RESTR
Yellow (dashed)
Warning
WARN
Yellow (dotted)
n/a
Red (Solid)
Prohibited
3
Notes:
1. Suppresses display of runways below the specified minimum length
2.
3.
Flight plan waypoints can be displayed as facility icons (such as the
VOR icon) or to show as the standard waypoint symbol. Most RS-232
GPS receivers are limited to displaying the waypoint symbol only.
Prohibited airspace is always displayed when in range and cannot be
disabled.
Getting Started - Example
Set the map range to 30nm, and press [MAP] so that “2” is
displayed. The display should show the flight plan as before, but
now overlaid with local airports with runways longer than 4,500 feet
shows on the map status bar
in length. Note that the airport icon
indicating that airports are being displayed and that on-screen
airports are shown in cyan. The cyan color indicates that the source
of the airport data is coming from the internal database. The flight
plan information comes from the GPS/FMS database.
Lower the map range to 15nm. Notice that as the display zooms in,
airport displays change from an icon to a runway (or multiple
runways). Below 10nm, the runway numbers will also be displayed
to assist in verifying orientation with respect to the airport. During
flight, the display will rotate and update in real time.
Press [MAP] to change to map memory 3. Notice that the airports
are removed and instead, LO and HI VORs are displayed in cyan.
On the map status bar the airport icon is removed and replaced with
the VOR icon.
Pressing [MAP] again will skip memory 4, because it is empty, and it
will jump directly to no map. All the map information will be
removed from the screen. To display the map again, repeat the
cycle of pressing [MAP] to display map memories 1, 2 and 3.
After you are familiar with the displaying map information based on
the default settings, customize the map display to suit your specific
S: Empty
1: GPS/FMS flight plan
SANDEL SN3500 EHSI PILOT’S GUIDE
Press [MAP] until “1” shows at the top of the map status bar. You
should see the GPS/FMS flight plan on the display. The active leg
and waypoint will be shown in magenta and the other waypoints and
course lines will be shown in white. Use the [ ⇑ ] or [ ⇓ ] buttons to
adjust the map range.
Map Setup
The default SN3500 map memories are set up as follows:
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4: Empty
To get started, it is recommended to try some operations on the
ground. Ensure that the GPS/FMS receiver is operating and enter a
flight plan or direct-to in order to establish navigation. If the
GPS/FMS has a simulator mode then that can be used for practice.
SID
Waypoint Symbols
Airspace
3: VORs and GPS/FMS flight plan
Item
Status bar icons
MAP OPERATIONS
PAGE 6-5
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MAP OPERATIONS
MAP OPERATIONS
needs. In this example, start by pressing [MAP] until “1” shows at
the top of the map status bar.
•
Rotate the left knob until “MENU SEL” in the far left column
is highlighted.
Press [M] to activate menu mode. Press [MAP] to display the MAP
menu. A pop-up window will appear on the display next to the
[MAP] button as shown below. All settings in map memory 1 are
coped to S (the scratchpad memory), and you can now make nonpermanent changes using the knobs. Changes are actually made
to the scratchpad memory S. To save changes into one of the map
memory locations 1-4, use the COPY function described later in this
chapter.
•
Rotate the right knob until airspace is highlighted as shown
below:
Figure 6-3 Select "AIRSPC"
Figure 6-2 Map setup menu
•
Next, rotate the left knob until “B” is highlighted;
•
Next, rotate the right knob to toggle Class B airspace to
“ON”.
The following actions occur every time the Map Setup mode is
accessed:
•
The currently selected display memory is copied into S.
•
S becomes the active memory.
•
Map Setup mode is entered and changed can be made to
Figure 6-4 Select "ON"
the map display.
Map Setup mode allows you to change the scratchpad memory S by
adding or deleting items from the map category by category. While
in the map menu, rotate the left knob to highlight an item in the left
column and rotate the right knob to select the available options in
the right column. The middle column will display the current
selection.
•
Press [M] to exit the menu and return to normal operation.
Class B airspace will now be shown on the map display and
the airspace icon will appear in the Map Status Bar.
Map Memory Settings
•
Press [M] to activate menu mode.
Map settings can be retained for future use by storing them into one
of the four memory presets. Individual memory presets can also be
cleared, set to defaults, or copied to the scratch memory. These
functions are all accessed through the map memory menu.
•
Press [MAP] to display the MAP menu.
To access the map memory menu:
As an example, to display Class B airspace the following steps will
be used:
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MAP OPERATIONS
•
Press [M] to activate menu mode.
•
Press [MAP] to display the MAP menu..
•
Rotate the left knob until “MENU SEL” in the far left column
is highlighted.
•
Rotate the right knob until “MEMORY” in the far right
column is highlighted.
MAP OPERATIONS
•
Rotate the left knob to highlight “CLEAR”
Storing Settings into Preset Memories 1-4
•
Figure 6-6 Removing map memory
Rotate the left knob until “S COPY TO” in the far left column
is highlighted.
•
Map memory "CLEAR"
•
Rotate the right knob to select the desired map memory
location to be cleared.
•
Press the right knob to clear the map settings from that
memory location. The center column will display the
cleared memory location.
•
Repeat as necessary to clear additional map memory
locations.
•
Press [M] to exit the menu and return to normal operation.
The memory location(s) that were cleared will be skipped in
the rotation sequence.
Figure 6-5 Storing settings
•
Map memory "S COPY TO"
•
Rotate the right knob and select one of the four map
memory locations. Press the right knob and the current
scratchpad settings will be stored under the specified map
memory number, the unit will exit the menu, and return to
normal operation.
Removing a Map Memory from the Rotation Sequence
Individual map memory settings (including the scratchpad) can be
cleared in order to reduce the number of map memories in the MAP
button rotation sequence. This is done using the CLEAR function.
To access the “CLEAR” map memory:
•
Access the Map Memory menu as described previously.
•
Rotate the left knob to highlight “MENU SEL”.
•
Rotate the right knob until “MEMORY” in the right column is
highlighted.
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Restoring Default Settings
The default settings can be restored at any time. The default
settings for individual map memory locations can be restored or all
of them can be restored at once. Note that this will erase any
previously stored settings. This is done using the “DEFAULT”
function.
To access the “DEFAULT” map memory:
•
Access the Map Memory menu as described previously.
•
Rotate the left knob until “DEFAULT” is highlighted in the far
left column. The map memory locations plus “ALL” will be
displayed on the right.
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MAP OPERATIONS
MAP OPERATIONS
•
Rotate the right knob until the desired map memory location
is selected and press the knob to copy the settings in that
memory location into the scratchpad memory.
•
The scratchpad can now be further modified or press [M] to
exit the menu and return to normal operation.
Automatic Decluttering
Figure 6-7 Restoring default settings
•
Map memory "DEFAULT"
•
Rotate the right knob until the desired map memory location
is selected and then press the right knob to restore the
default settings for that memory location. Selecting “ALL”
will restore all of the map memory locations to default
settings.
•
Press [M] to exit the menu and return to normal operation.
Copying Map Settings into the Scratchpad
It may be desired to copy settings that have been previously stored
in a map memory location into the scratchpad. This is done using
the “S LD FROM” function.
To access the “S LD FROM” map memory:
•
Access the Map Memory menu as described previously.
•
Rotate the left knob until “S LD FROM” is highlighted in the
far left column. The map memory locations will be
displayed on the right.
Occasionally, the SN3500 map display may become too cluttered to
read, such as by turning on several categories of map items. The
SN3500 will automatically remove items from the display if the total
number of items is too great to display. When this occurs, it is
indicated by an icon color change from cyan to yellow on the map
status bar as shown following:
Normally the SN3500 will allow up to approximately 50 icons before
this action occurs, but this number may be smaller if complex
airspace is displayed simultaneously. When automatic decluttering
occurs, it occurs first to objects closest to the aircraft. When the
display is zoomed-in, these objects will reappear and the associated
status bar icon will turn back to cyan.
Maximum Range of Internal Map Data
During normal operation, the SN3500 only displays items from its
internal database that are within 200nm of the current aircraft
position (400nm for long range VORs and NDBs), even when the
selected map range is larger.
Clearing the Map Display
To quickly turn off the map display, press [CLR]. The map display
will be removed. Pressing [CLR] again will return to the most
recently displayed map memory location.
Figure 6-8 Copying map settings
•
Map memory "S LD FROM"
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WEATHER DISPLAY INTERFACE
CHAPTER 7
WEATHER DISPLAY INTERFACE
•
WEATHER DISPLAY INTERFACE
WX-500 Stormscope® Data
To control the various functions of the WX display, press [M]
to activate the menu mode, and then press [WX] to display
the weather setup menu. See Figure 7-2.
If an L-3 WX-500 Stormscope lightning detection sensor has been
installed in the aircraft, it can be configured to display on the
SN3500 as shown on Figure 7-1.
Lightning strikes are displayed in the SN3500’s primary display
area, and are automatically synchronized with the aircraft’s heading.
The status of the WX-500 is displayed in the upper right corner. In
normal operation, this represents the current strike rate, preceded
by an “S” for strike mode, or “C” for cell mode. Error messages are
detailed in the WX-500 User’s Guide.
New cell/strike symbols are shown on the SN3500 in white for 30
seconds after which they are shown in green. Cell/strikes older than
3 minutes are removed from the display.
Figure 7-2 WX setup menu
Rotate the left knob to select the desired function in the left column.
The following options are available:
•
CLEAR: Press the right knob to clear the display of any
lightning strikes.
•
DISPL: Rotate the right knob to select the display option
CELL or STRK.
Figure 7-1 WX-500 Stormscope display
WX Menu
Figure 7-3 Display menu
The WX menu can only be accessed when a WX-500 Stormscope®
is installed.
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CELL:
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Enables display of WX-500 strikes in CELL
mode, which displays a lightning symbol for
each group of strikes.
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WEATHER DISPLAY INTERFACE
STRK:
•
Enables display of WX-500 strikes in STRIKE
mode, which displays a lightning symbol for
each individual strike.
MODE: Rotate the right knob to select the MODE options
WX, TEST, or DEMO.
WEATHER DISPLAY INTERFACE
FIS-B Datalink Weather
The SN3500 EHSI displays Flight Information Services-Broadcast
(FIS-B) weather information when connected to a WSI InFlight data
link receiver and the SN3500 contains software version 3.00 or
above enabled with Datalink Weather.
The particular FIS-B products (CONUS only) supported in the
SN3500 are:
•
•
Precipitation
Lightning
Figure 7-4 WX-500 mode menu
WX:
Normal WX-500 operation.
TEST:
Executes WX-500 self-test.
DEMO: Causes the WX-500 to send a series of simulated
lightning strikes to the SN3500 display.
•
LTNG SRC: Rotate the right knob to select the lightning
source WX-500, WSI, or WX-500 & WSI. (Only available
when both WX-500 Stormscope and a WSI receiver are
installed.)
Figure 7-6 FIS-B weather display
General Operation
Pressing the WX button repeatedly will cycle through the four
weather display modes:
Figure 7-5 LTNG SRC mode menu
1.
2.
3.
4.
WX500: Display only strikes from WX-500.
WSI:
Display only strikes from WSI.
BOTH:
Display strikes from WX-500 & WSI.
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Precipitation and Lightning [PL]
Precipitation only [P]
Lightning only [L]
Off
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WEATHER DISPLAY INTERFACE
WEATHER DISPLAY INTERFACE
The FIS-B display modes are annunciated next to the WX button. A
single two digit number appears to the right of the WX annunciations
representing time in minutes since the last precipitation update from
the data link receiver.
Note: FIS-B lightning may be co-displayed with WX-500 lightning
strike information, when a WX-500 is also connected to the SN3500.
Precipitation Intensity
Precipitation intensity level is represented graphically using the
following colors shown in Figure 7-7.
Figure 7-8 FIS-B lightning strike age
After 15 minutes, the strike is removed from the screen.
FIS-B Services Backgrounder
No radar coverage
The goal of FIS-B data link systems is to provide weather and other
non-control flight advisory information to pilots in a manner that will
enhance their awareness of the flight conditions and enable better
strategic route planning. The information provided through FIS-B is
advisory in nature. This information is provided to be better able to
assess the need to consider alternative future route and altitude
selections.
No echo
Rain 20 - 30 DBZ, Light
Rain 30 – 40 DBZ, Moderate
Rain Greater than 40 DBZ, Heavy
Snow
This implementation of the FIS-B data link system is not intended to
replace existing voice networks, Flight Service Station (FSS)
services, preflight briefings, or usurp any joint duties or
responsibilities required by part 121 operators. Loss or non-receipt
of FIS-B services would not be considered flight critical.
Mixed
Figure 7-7 Precipitation
FIS-B Lightning
FIS-B lightning strikes are depicted by small filled circles. Lightning
strike age is displayed by the filled color in the circle representing
the lightning strike. Three color shades are used to represent strike
aging per table 7-1.
FIS-B products are to be used only for advisory and
strategic/planning purposes and not for crew alerting or tactical
flying. This is due to the fact that FIS-B products may have
significant latency between the observation of a weather
phenomenon, the issuance of a forecast or the change in airspace
status, and the display of that information in the cockpit.
Because the updates rates are relatively low, FIS-B products should
not be used for tactical maneuvering of the aircraft, and should not
be the sole basis for immediate corrective action by the pilot. FIS-B
products are intended to enable pilots to determine if action should
be taken well before it is required, and should be used in
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WEATHER DISPLAY INTERFACE
conjunction with other information sources to support in-flight
decisions.
FIS-B information is to be used as a strategic planning tool for pilot
decisions on avoiding areas of inclement weather that are beyond
visual range of where poor visibility precludes visual acquisition of
inclement weather. FIS-B weather and NAS status information may
be used as follows:
•
•
To promote pilot awareness of own ship location with
respect to reported weather, including hazardous
meteorological conditions, and enhance decision-making
during strategic flight planning activities.
To cue the pilot to communicate with the Air Traffic Control
controller, Aircraft Flight Service station specialist, operator,
dispatch, or airline operations control center as required.
•
Figure 7-9 illustrates the FIS-B information flow from the NEXRAD
radar sites to the cockpit. The process flow begins with NEXRAD
radar observations taken and sent to the processing and uplink
facility. Depending on radar sweep rates and configuration, these
observations may be aged from 2 – 8 minutes when they enter the
processing facility.
WEATHER DISPLAY INTERFACE
The processing facility collects the NEXRAD information and builds
a set of mosaic tiles representing recent weather conditions. After
this information has been processed it is then up-linked to satellites
for retransmission to aircraft receivers. This process can take up to
3 minutes depending on the amount of information to be uplinked.
By the time this information is received in the aircraft and displayed
on the SN3500, it will be aged from 3 to 11 minutes depending on
the amount of data transmitted. This process is repeated at
approximately 5 minutes intervals.
Approximately every 5 minutes, a complete set of mosaic weather
tiles representing precipitation is transmitted to the aircraft. Flight
conditions and aircraft position/attitude may cause errors in the data
reception causing loss of 1 or more of the mosaic tiles. When this
occurs, the last tile(s) received will be displayed on the screen as
long as the reception age of the tile(s) is not older than 30 minutes
and the tile(s) is not older than 10 minutes from any other tile. Any
tile outside of these aging parameters are removed from the screen
and displayed as no data using a gray background. The reception
age uses the time the tile is received from the aircraft receiver by
the SN3500. The SN3500 displays to the right of the WX button the
time in minutes since any mosaic tiles have been received.
Examples
FIS-B weather information is provided without any reference to
altitude or flight level. Depending upon the current aircraft flight
level, it is very possible that the conditions observed visually or from
on-board weather radar displays may not correlate to the graphic
presentation on the SN3500. Figure 7-10 is a typical example of
precipitation displayed on the SN3500.
Figure 7-9 FIS-B information flow
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WEATHER DISPLAY INTERFACE
WEATHER DISPLAY INTERFACE
Figures 7-12 and 7-13 illustrate two other situations where observed
flight conditions will not correlate to the display in figure 7-10.
Figure 7-10 Precipitation example
Figure 7-10 depicts current aircraft position co-located with
precipitation that a pilot would normally associate with visible
moisture. However, since the FIS-B information is not referenced to
altitude, the actual observed flight conditions may vary. Figure 7-11
illustrates the flight conditions a pilot may reasonably expect to
observe while in the area displayed in figure 7-10.
Figure 7-12 No visible moisture observed
Most likely, a flight crew will recognize the cloud deck below and
consider that the conditions represented on the SN3500 in figure 710 are well below the aircraft. However, it may not be so apparent
when flying between cloud layers at figure 7-13 illustrates. When
flying between layers the flight crew may consider the FIS-B system
has mal-functioned while as the figure shows the serious weather is
below the aircraft further illustrating the lack of vertical information
provided with the FIS-B weather system.
.
Figure 7-11 Visible moisture observed
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WEATHER DISPLAY INTERFACE
WEATHER DISPLAY INTERFACE
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Figure 7-13 Between layers
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TRAFFIC DISPLAY INTERFACE
CHAPTER 8
TRAFFIC DISPLAY INTERFACE
TRAFFIC DISPLAY INTERFACE
SN3500 display.
The SN3500 can display nearby transponder equipped aircraft
when interfaced with a compatible TAS or TCAS processor. Please
refer to the Pilot’s Guide for the specific traffic system installed in
the aircraft for a complete description of the capabilities.
Traffic Advisory (TA)
Note: The SN3500 can be interfaced to a TCAS II processor but will
function only as a traffic display as vertical guidance information
required for conflict resolution will not be displayed.
Traffic Alert
No Bearing / No
Altitude
Traffic Alert
No Bearing
Traffic Targets
Altitude Mode
DISPLAY
Traffic Display
Mode
CONDITION
Alerting traffic with no
bearing
information
available.
Traffic within 4nm and
+/-1,200 ft of your
aircraft
Other Traffic
Traffic not representing
an immediate threat
Out of Range Traffic
RA and TA targets
outside of the currently
selected display range
will be shown as a half
symbol against the
compass rose at the
corresponding bearing.
Traffic Symbology
The SN3500 uses standard RTCA symbology to represent traffic.
Alerting Traffic
CONDITION
Resolution Advisory
(RA) (Available with
TCAS II Only)
DESCRIPTION
Immediate threat that
requires evasive action.
Note: Vertical
guidance information is
NOT shown on the
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DESCRIPTION
Proximity Advisory
Figure 8-1 SN3500 with traffic
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Alerting traffic with no
bearing and no altitude
information available.
Non-Alerting Traffic
2m Range Ring
DISPLAY
Traffic within 15-30
seconds of closure, or
within 0.20 to 0.55nm
and +/-600 to +/-800 ft
of your aircraft
Relative Altitude
Relative altitude in hundreds of feet and vertical trend information
are also given for each target aircraft. Note: Values greater than
9900 feet are shown as ‘99’.
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TRAFFIC DISPLAY INTERFACE
The ‘-02’ indicates the target is 200 feet below your
current aircraft altitude. The up arrow indicates the
target is climbing at a vertical rate of greater than 500
fpm.
The ‘+05’ indicates the target is 500 feet above your
current aircraft altitude. The down arrow indicates
the target is descending at a vertical rate greater than
500 fpm.
TRAFFIC DISPLAY INTERFACE
When the traffic display mode is set to ON, pressing the [CLR]
button will change the display mode to Auto. This has the effect of
removing non-alerting traffic from the display. Pressing [CLR] again
will toggle the traffic display mode back to ON. Note that alerting
traffic will always be shown on the display.
Altitude Mode
The currently selected altitude display mode will be displayed next
to the [TFC] button.
Absolute Altitude vs. Relative Altitude
The traffic processor may have an option to change the display of
altitude from relative to absolute. This is called ‘Flight Level’ mode
by some manufacturers. When activated, the altitude shown for
target aircraft will temporarily be shown in hundreds of feet MSL
when below 18,000 feet and as a flight level above 18,000 feet.
The altitude of your aircraft will be shown in the top right of the
SN3500 display.
Traffic Display Mode
The traffic display mode is annunciated next to the [TFC] button.
There are three different modes available which control how the
targets are displayed on the SN3500 and are toggled by pressing
the [TFC] button.
ON:
M:
A:
Enables display of all targets within the selected
map range.
Selecting the Manual (M) or Auto (A) modes will suppress the
display of non-alerting traffic (i.e. traffic other than RAs or TAs).
This can be useful in busy terminal areas where the display of all
traffic may cause the screen to become too cluttered.
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Normal altitude display mode. Target aircraft
within +/-2,700 ft. of your aircraft are displayed.
ABV:
Above altitude display mode. Target aircraft
within –2,700 ft. and +9,000 ft. of your aircraft
are displayed.
BLW:
Below altitude display mode. Target aircraft
within –9,000 ft. and + 2,700 ft. of your aircraft
are displayed.
XTD:
Extended altitude display mode. Target aircraft
within +/-9,000 ft. of your aircraft are displayed.
TCAS Status
When traffic is not available, the following annunciations will be
displayed next to the [TFC] button. The Traffic Display Mode
annunciation will also be lined out in red.
TEST:
Manual mode. Traffic will be displayed within
the selected map range only when alerting
traffic is present.
Auto mode. Same as Manual mode except that
map range will auto-scale to an appropriate
range to show the traffic on-screen.
<none>
TCAS is currently in Test mode
OFF or STBY: TCAS is currently in Standby mode
FAIL:
TCAS data communication not present
Traffic Overlay with Moving Map
Traffic targets can be displayed simultaneously with the moving map
information described in Chapter 6. Targets will be overlaid on the
moving map flight plan and icons as shown in the example below.
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TRAFFIC DISPLAY INTERFACE
TRAFFIC DISPLAY INTERFACE
Figure 8-4 Altitude range menu
•
ALT AS FL (Ryan 9900BX TAS Only): Changes the altitude
of target aircraft to be shown as absolute altitude instead of
relative altitude for 30 seconds.
Figure 8-2 Traffic with moving map
Figure 8-5 Altitude as flight level menu
TFC Menu
Additional traffic options can be accessed by pressing [M] and then
[TFC]. The traffic setup menu will be displayed.
The following options are available:
•
ON AUTO: Enables or disables map auto-ranging when
alerting traffic is displayed and the traffic display mode is set
to ON.
Figure 8-3 ON AUTO menu
•
ALT RANGE (Ryan 9900BX TAS Only):
Selects the
desired altitude mode display. When interfaced with a
traffic processor other than the Ryan 9900BX, the altitude
mode will be selected by remote switches or by controls on
the ‘master display’.
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FLAGS AND ABNORMAL CONDITIONS
CHAPTER 9
FLAGS AND ABNORMAL CONDITIONS
The SN3500 detects abnormal conditions such as flagged
navigation receivers and failed directional gyro or fluxgate. It also
monitors its own internal temperature and provides warnings for
over temperature or loss of cooling conditions.
In some cases, the flagged displayed will be accompanied with a
failed equipment list message. This message can be accessed by
holding down the menu button until the message display shows.
The list will show both current and prior messages (if applicable).
To show just the current messages, exit the message page by
pressing the menu button and reenter by holding down the menu
button.
FLAGS AND ABNORMAL CONDITIONS
GS (glideslope)
flag
Large
red
“X”
glideslope
scale
glideslope pointer
displayed.
GS flag,
backcourse
Large yellow "X" through
glideslope scale (VDI) to show
that you are on backcourse
approach.
Directional gyro
failure
Compass rose color changes
from white to amber. The
inner course and vertical
deviation
indicators
are
removed.
Heading data is
obtained from fluxgate alone if
connected
to
SN3500.
Because fluxgate signals are
averaged over time, heading
response will lag the aircraft
significantly.
Fluxgate failure
Compass rose color changes
from white to amber and the
compass heading is redlined.
The inner course and vertical
deviation
indicators
are
removed. The display can be
used to determine relative
headings for turns, but the
magnetic compass should be
used to determine absolute
heading.
Figure 9-1 Messages
FLAG OR
CONDITION
NAV flag
DISPLAY
DESCRIPTION
Large red “X” through the CDI
scale, and the deviation bar is
not
displayed.
Numeric
information display shows “--“.
through
(VDI),
is not
Note: CDI pointer will be visible under the red “X” for
two minutes after power-up to allow testing for certain
GPS receivers.
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FLAGS AND ABNORMAL CONDITIONS
Loss of gyro &
fluxgate or;
Loss of gyro
without fluxgate
installed
Loss of compass rose. The
inner course and vertical
deviation
indicators
are
removed.
Fast slave
mode
Compass heading is redlined
during fast slave correction.
Heading has not stabilized.
Map flag
Redlined map icons indicates
that the map cannot be
displayed because of loss of
LNAV.
Stormscope®
flag
Redlined “WX” indicates loss
of data communication from
the WX-500 Stormscope®.
Traffic Flags
Redlined “ON”, “A” or “M” next
to TFC button indicates loss of
data communication from the
traffic processor.
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MESSAGES
CHAPTER 10
MESSAGES
MESSAGES
Message
The Sandel SN3500 displays different messages to alert the pilot.
The messages are initiated by the Pilot, the Built in Self Test (BIST),
the Power On Self Test (POST), or by the system. Most of the pilot
initiated messages are shown for two seconds and are removed
automatically. Error messages, which are considered critical, are
placed on-screen permanently until acknowledged.
The
acknowledgment is done using the ACK soft-key which will appear
and flash when such a message appears. It also monitors its own
internal temperature and provides warnings for over-temperature or
loss of cooling conditions.
400HZ LOW
Problem with main inverter. Note 1
AIRCRAFT POWER
Main power to unit out of specification.
AUTO-SLEW ACTIVE
Displayed when course knob is turned but
course knob setting is over-written by
Direct Track from the Long Range NAV
Receiver. Auto-slew operation can be
disabled by entering the NAV menu and
setting auto-slew to OFF. If auto-slew is
turned off, you will need to turn the course
pointer manually at every waypoint when
flying a flight plan.
AUX 400HZ FAILED
Loss of auxiliary inverter. Notes 1, 3
AUX 400HZ HIGH
Problem with auxiliary inverter. Notes 1, 3
AUX 400HZ LOW
Problem with auxiliary inverter. Notes 1, 3
COOLING FAN FAIL
The internal temperature is continuously
monitored.
An over temperature
condition will only occur if the cooling
airflow is obstructed. As the temperature
rises a warning will be issued prior to
shutdown. If shutdown occurs the
SN3500 will shut off the projection lamp
and continue operating, and resume
normal operation as the internal
temperature falls.
Figure 10-1 Message and "ACK" button
Message
Description
400HZ FAILED
Loss of main inverter. Note 1
400HZ HIGH
Problem with main inverter. Note 1
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Description
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MESSAGES
Message
Description
COPY MEM
Message
This message appears when [MEM]
button is pushed and held. After this
COPY MEM is performed, both memories
will show the display settings in effect
when the COPY MEM was executed.
EXT SW SET TO GPS
This message appears when pressing the
“NAV” button on the SN3500 when it is
slaved to an external GPS/NAV
switch/annunciator panel. Instead of the
SN3500 NAV switch use the external
GPS/NAV switch.
EXT SW SET TO NAV
This message appears when NAV button
pressed while in slave mode and
selection is NAV.
FCS FDBCK ERR
In some installations the SN3500 Lateral
and Vertical outputs drive the autopilot
directly (See your AFMS). These outputs
are measured and compared to the
expected outputs and the “FCSFDBCK
ERR” will appear if there is a miscompare
for more than 10 seconds.
If this
message appears, it may indicate that the
autopilot may not be accurately flying the
lateral and/or vertical deviation showing
on the course deviation indicators due to
an internal failure in the SN3500 or a
wiring short circuit in the aircraft.
Immediately monitor the lateral and
vertical deviation indicators, and disable
the autopilot (and flight director) NAV or
APPR mode for the duration of the flight if
the autopilot is not tracking as expected.
HDG mode may still be used in this
circumstance if verified to be working.
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MESSAGES
PAGE 10-3
Description
FGATE EXCIT LOST
Fluxgate excitation has failed. Check the
gyro circuit breaker. Note 2
FGATE XYZ LOST
Fluxgate XYZ signal voltage too low or
not received.
GYRO INVALID
Gyro valid flag asserted. Check the gyro
circuit breaker. Note 2
GYRO XYZ LOST
Gyro XYZ (synchro) signal voltage too
low or not received.
GYRO/FG CFG BAD
The Heading hardware configuration is
incorrect. Either a stepper gyro has been
configured without a fluxgate (heading
steppers must be slaved), or an ARINC429 heading source has been configured
with a fluxgate (ARINC-429 heading
inputs may not be slaved).
MAP CRC INVALID
Indicates that the upload of the map
database to the unit was not completed
successfully or the file was corrupted.
Repeat the upload procedure. Contact
Sandel technical support if the messages
persist. All other functions of the SN3500
continue to operate normally when the
map has failed.
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MESSAGES
Message
Description
MAP INCOMPATIBLE
Indicates a mismatch between the
operating software version and the map
database. Check the Sandel website to
ensure that you have the latest versions
of operating software and database and
repeat the upload procedure. All other
functions of the SN3500 continue to
operate normally when the map has
failed.
NAV TUNED TO ILS
This message appears when pressing the
“NAV” switch on the SN3500 to select a
GPS and this action is overridden
because an ILS is tuned on NAV1 or
NAV2 and ILS lockout was enabled
during installation.
NAV1 TUNED ILS
NAV2 TUNED ILS
Message
Description
OVERTEMP
SHTDWN
The internal temperature is continuously
monitored.
An over temperature
condition will only occur if the cooling
airflow is obstructed. As the temperature
rises a warning will be issued prior to
shutdown. If shutdown occurs the
SN3500 will shut off the projection lamp
and continue operating, and resume
normal operation as the internal
temperature falls.
PARAM CRC FAULT
Appears when VHF NAV1 is tuned to an
ILS frequency overriding and changing
the SN3500 current NAV selection and
ILS lockout was enabled during
installation.
PARAM CRC is not the expected value.
The SN3500 installation settings have
become invalid. Parameter memory is
probably corrupt. This message must not
appear on power-up if flight operations
are predicated on the use of the SN3500
Navigational Display.
PGM CRC INVALID
Appears when VHF NAV2 is tuned to an
ILS frequency overriding and changing
the SN3500 current NAV selection and
ILS lockout was enabled during
installation.
Program CRC is not the expected value.
This message must not appear on powerup if flight operations are predicated on
the use of the SN3500 Navigational
Display.
PWR SUPPLY FAIL
Internal power supply out of specification.
RELAY SENSE ERR
This message appears with the selected
relay feedback does not match.
NOT IMPLEMENTED
<BRG> key pushed with no source of
bearing available.
NOT INSTALLED
<TFC> or <WX> key pushed or TFC or
WX menu access attempted when
supporting equipment is not installed.
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Note 1:
The inverter failure messages will only appear if a
master or auxiliary inverter is installed.
Note 2:
Gyro Failures will only be annunciated if the installed
Gyro has a valid flag output. If the “Fluxgate Failed”
message appears check the Gyro circuit breaker, which
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MESSAGES
MESSAGES
is usually the source of Fluxgate power.
Note 3:
Loss of the auxiliary 400HZ inverter will only cause the
ADF to become invalid if installed.
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TECHNICAL SPECS AND OPERATING LIMITS
CHAPTER 11
TECHNICAL SPECS AND OPERATING LIMITS
TECHNICAL SPECS AND OPERATING LIMITS
TSO Compliance
Technical
Standard Order TSO-C113, Airborne Multipurpose electronic Displays
(TSO):
Software
Certification:
RTCA/DO-178B, Level C
DO-160D
Environmental
Category:
High Vibration:
[(A2)(F1)]ZBAB[(H)(R)]XXXXXXZBABB[WW]M[XX(E2)(F2)X]
XXA
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Standard:
[(A2)(F1)]ZBABHXXXXXXZBABB[WW]M[XX(E2)(F2
)X]XXA
Physical Dimensions
Form Factor:
3ATI (ARINC 408)
Width:
3.165 in. (8.04 cm)
Height:
3.165 in. (8.04 cm)
Length:
10.3 in. (26.2 cm) overall, excluding
connectors and knobs.
Weight:
3.0 lbs (1.4 Kg)
Operational Characteristics
Temperature/Altitude:
-20º C to + 70º C up to 55,000 ft.
Power Inputs:
22 to 33 VDC
1.5 Amperes nominal @ 27.5 VDC
400 HZ Reference:
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26 volts nominal, less than 1 milliampere
load
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INSTALLATION INFORMATION
CHAPTER 12
INSTALLATION INFORMATION
INSTALLATION INFORMATION
To be completed by installer.
Date of Installation: _____________________________________
Installer Company: _____________________________________
Installer Address:
______________________________________________________
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______________________________________________________
______________________________________________________
Installer Phone: ________________________________________
Work Order #: __________________________________________
Installer: ______________________________________________
NAV Equipment Inputs: __________________________________
Notes:
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
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GLOSSARY
CHAPTER 13
GLOSSARY
Active Course
Segment
The course line segment between the last waypoint
passed and the active waypoint in a flight plan.
Active Waypoint
The next waypoint in a flight plan.
Course Deviation
Indicator
The course deviation indicator bar (CDI; also
known as the deviation bar or “D-bar”) is the
movable center section of the course pointer that
depicts deviation to the left or right of course.
Course Segment
A portion of a flight plan between two waypoints.
Cross-Side
Equipment associated with the position opposite
the installed pilot or copilot position.
Failure
The inability of the equipment or any sub-part of
that equipment to perform within specified limits.
On-Side
Equipment associated with the same position as
the installed pilot or copilot position.
Selectable Items
Modifiable values, multiple-choice listings displayed
on multiple lines, and requests that an operator
may select.
Vertical deviation
indicator
The vertical deviation indicator bar (VDI) is the
movable center section that depicts vertical
deviation above or below glideslope or GPS final
approach path.
Waypoint
A position on the GPS/FMS flight plan representing
a change in course on-screen by a “star” symbol.
70o ARC View
A forward-looking 70-degree ARC view that
maximizes the display of the ground track ahead of
the aircraft where the lubber line is centered in the
ARC, and the aircraft’s current position, is depicted
near the bottom of the display.
360o FULL View
A 360-degree FULL view where the aircraft’s
current position is depicted at the center of the
display.
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AVIONICS ACRONYMS
CHAPTER 14
AVIONICS ACRONYMS
AVIONICS ACRONYMS
FAF
Final Approach Fix
FD
Flight Director
ACK
Acknowledge
FIS-B
Flight Information Services-Broadcast
ADF
Automatic Direction Finder
FLPS
Flaps
AFM
Airplane Flight Manual
FMS
Flight Management System
AFMS
Airplane Flight Manual Supplement
GA
General Aviation
AHRS
Attitude/Heading Reference System
GPS
Global Positioning System
AMED
Airborne Multipurpose Electronic Displays
GS
Glide Slope
AOG
Aircraft On Ground (out of service)
HDG
Aircraft’s magnetic heading
AP
Auto Pilot
Hz
Hertz (cycles per second)
ARP
Airport Reference Point
IFR
Instrument Flight Rules
ASL
Above Sea Level
ILS
Instrument Landing System
ATC
Air Traffic Control
KTS
Knots
BIT
Built-In-Test
LNAV
Lateral Navigation; also Long Range Navigation
C
Celsius
MAP
Missed Approach Point
CDI
Course Deviation Indicator
MFD
Multi-function Display
CD ROM
Read Only Memory, Compact Disc
MOA
Military Operations Area
CM
Configuration Module
NAV
Navigation Receiver (VOR)
CPU
Central Processing Unit
NM
Nautical Miles
CRC
Cyclic Redundancy Check
OBS
Omni Bearing Selector
DH
Decision Height (Precision approach)
POH
Pilot’s Operating Handbook
DME
Distance Measuring Equipment
POST
Power-On Self-Test
EFIS
Electronic Flight Instrument System
RMI
Radio Magnetic Indicator
FAA
Federal Aviation Administration
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AVIONICS ACRONYMS
RTCA
Radio Technical Commission on Aeronautics
(rtca.org)
TACAN
Tactical Air Navigation System
TA
Traffic Advisory
TAS
Traffic Advisory System
TFC
Traffic
TRK
Aircraft’s ground track (usually magnetic)
TSO
Technical Standard Order
USB
Universal Serial Bus
Vac
Volts AC (alternating current – in aircraft typically
400Hz)
Vdc
Volts DC (direct current)
VDI
Vertical Deviation Indicator (for glideslope)
VHF
Very High Frequency
VOR
VHF Omnidirectional Radio Range
VORTAC
System with a co-located VOR and a TACAN station
82005-PG-D
SANDEL SN3500 EHSI PILOT’S GUIDE
AVIONICS ACRONYMS
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