(en)

SN3500 EHSI

Navigation Display

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Pilot’s Guide

82005-PG-D SANDEL SN3500 EHSI PILOT'S GUIDE 82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE II

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:

Sandel Avionics, Inc.

2401 Dogwood Way

Vista, CA 92081

USA

Tel: (760) 727-4900

Fax: (760) 727-4899 www.sandel.com

Revision notice

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

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE III 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.

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

The FAA has approved the SN3500 under the following TSO:

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

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.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE IV

Table of Contents

Pilot information iii

Copyright iii

Revision notice

Operational and legal issues iii iii

Approvals iv

Conventions Used in This Manual iv

Table of Contents

Table of Figures

Effectivity, Errata and Revision History v viii ix

CHAPTER 1 WELCOME TO THE SN3500 EHSI

What is the SN3500

1-1

1-1

CHAPTER 2 DISPLAY OVERVIEW 2-1

SN3500 Physical Features

Display Areas

2-1

2-1

Indicators 2-2

Data Color Coding 2-5

CHAPTER 3 BASIC OPERATION 3-1

Overview 3-1

Power-up Displays 3-1

Selecting the Data

Selecting the Primary NAV Source

Selecting and Displaying Bearing Pointers 1 & 2

Displaying the Map Data

3-2

3-3

3-4

3-4

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

3-4

3-4

3-4

3-4

3-4

3-4

3-4

CHAPTER 4 NAV OPERATION

GPS Mode Selection

Auto-Slew Function

Course Pointer Display Function

4-4

4-4

4-4

4-4

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE V

CHAPTER 5 BEARING POINTERS

Bearing Pointers

BRG Menu

5-4

5-4

5-4

CHAPTER 6 MAP OPERATIONS 6-4

Overview 6-4

Internal Database 6-4

Map Controls and Displays

Map Memories

MAP DATABASE ITEMS

Getting Started - Example

6-4

6-4

6-4

6-4

Map Setup

Map Memory Settings

Storing Settings into Preset Memories 1-4

6-4

6-4

6-4

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

6-4

6-4

6-4

6-4

6-4

6-4

CHAPTER 7 WEATHER DISPLAY INTERFACE 7-4

WX-500 Stormscope® Data

WX Menu

FIS-B Datalink Weather

General Operation

Precipitation Intensity

7-4

7-4

7-4

7-4

7-4

FIS-B Lightning

FIS-B Services Backgrounder

7-4

7-4

Examples 7-4

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

8-4

8-4

8-4

8-4

8-4

8-4

8-4

8-4

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE 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

CHAPTER 14 AVIONICS ACRONYMS

13-4

14-4

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

7-4

7-4

7-4

7-4

7-4

7-4

7-4

7-4

6-4

6-4

6-4

7-4

7-4

7-4

7-4

7-4

8-4

8-4

8-4

8-4

8-4

9-4

10-4

4-4

4-4

5-4

6-4

6-4

6-4

6-4

6-4

2-1

2-2

3-1

3-2

3-3

3-4

3-4

4-4

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE VII 82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE VIII

Effectivity, Errata and Revision History

Date: 11/17/05

Revision: 3.00

Applies to: SN3500 Software 3.00

SN3500 Pilot’s Guide 82005-PG-D

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 Comments

Updated for software version 3.00

• Illustrations updated to remove menu "M" icon on displays

• Page 2-1: Added traffic and FIS-

B datalink weather

• Page 3-1: Updated illustration to show map revision letter

• Page 3-2: Added traffic and WSI

• Page 3-6: Revised paragraph on

Transitioning from GPS/FMS to

ILS

• 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

82005-PG-D

• Illustrations changed to reflect

SANDEL SN3500 EHSI PILOT’S GUIDE PAGE IX revised colors

• Page 2-3: Updated paragraph on Course Pointer

• Pages 2-5 & 2-6: Updated table to reflect revised colors

• Page 3-6: New paragraph

“Transitioning between

GPS/FMS and ILS”

• Chapter 7 added paragraph on color of Stormscope data

• Chapter 8 added to reflect new traffic interface option

• Chapter 9 revised to expand description of gyro/fluxgate flags and add description of traffic flags

No errata applicable to this release.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE X

WELCOME TO THE SN3500 EHSI

CHAPTER 1 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.

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.

WELCOME TO THE SN3500 EHSI

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82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 1-1 82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 1-2

CHAPTER 2 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.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 2-1

Upper display area

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.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 2-2

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.

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.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 2-3

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 enabled.

Inner CDI Outer VDI

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 2-4

Data Color Coding

Data displayed on the SN3500 is color coded as follows:

GREEN

CYAN

• Information associated with the primary VHF

NAV1 receiver (or NAV2 if in co-pilot configuration)

• GPS annunciators: ACTV, AUTO and LEG

• Class B and C airspace

• Stormscope® data older than 30 seconds

• Information associated with the LNAV

(GPS/FMS) receiver text

• GPS annunciators: HLD, PTK and APPR (II

Morrow GPS only)

• Map status bar icons

• Moving map icons

• Current position symbol, either airplane or triangle

• Compass rose under normal conditions

• Magnetic heading and button labels

• Non-active legs and waypoints of flight plan

WHITE

• Heading bug and associated data

• New Stormscope® data

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 2-5

• Flags indicating failed glide slope or CDI data

RED

AMBER

YELLOW

• GPS annunciators: MSG and WPT. Also

HOLD (Garmin only)

• Compass rose when either gyro or fluxgate has failed

• Middle marker indicator associated with the cross-side

NAV receiver (NAV2 if in the pilot configuration, NAV1 if in the co-pilot configuration)

• Restricted and warning areas

• Flag indicating invalid glide slope

• Decluttered map status icons

• Active leg and waypoint of flight plan

MAGENTA

BLUE

PURPLE

• Outer marker indicator

• MOA

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 2-6

CHAPTER 3 BASIC OPERATION

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.

Power-up Displays

On initial power-up, a short introduction screen will be displayed which includes the software and database versions.

Figure 3-1 Introduction screen

After a few seconds this display will be removed and the compass card will be shown as below:

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-1

DME distance

Selected course

Current NAV source

To /from indicator

Mag . heading

Heading bug

Course pointer

DME groundspeed

Selected heading

Bearing pointer 1

Bearing pointer 1 source and bearing

Bearing pointer 2

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

• ADF1 and ADF2

• Marker beacon receiver

• Weather detection (WX-500 Stormscope® and/or WSI)

• Traffic

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-2

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.

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.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-3

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.

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.

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: VORs and GPS/FMS flight plan

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-4

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.

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.

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

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-5 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.

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

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-6

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”.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-7

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 3-8

NAV OPERATION

CHAPTER 4 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 4-1 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.

Auto-Slew Function

Auto-slew function enables the automatic operation of the course pointer when a GPS/FMS is selected as the main NAV source.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 4-1

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.

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 4-3 Course pointer setup menu

• Press [M] to activate menu mode.

• 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.

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NAV OPERATION

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BEARING POINTERS

CHAPTER 5 BEARING POINTERS

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.

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:

VOR: Green (NAV1), Yellow (NAV2)

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.

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.

BEARING POINTERS

BRG Menu

The NAV sources for the bearing pointers are selected using the

BRG menu function.

Figure 5-1 BRG main menu

• 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.

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MAP OPERATIONS

CHAPTER 6 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:

• Controlled and Special Use Airspace

• VORs

• NDBs

• Intersections

• GPS Flight Plans and Approaches

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.

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 plan waypoints and course line come from the database in the

GPS/FMS and are color-coded magenta or white.

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.

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”.

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MAP OPERATIONS

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.

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.

Map Memories

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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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

Status bar icons

Item

Setup Menu

Label

Color

Airports

NDBs

VORs

Military MIL Cyan

Private PRIV Cyan

Runway Length

1

MIN LEN n/a

GRASS Grass Surface

Other Surface

Outer Marker

OTH SFC

OM n/a n/a

Cyan

Low Power

High Power

High Level

Low Level

Terminal

TACAN

Intersections Enroute

L PWR

H PWR

HI LV

Cyan

Cyan

Cyan

LO LV Cyan

TERM Cyan

Cyan

TACAN

ENRT Cyan

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MAP OPERATIONS

MAP DATABASE ITEMS

Status bar icons

Item

Setup Menu

Label

Color

Approach APPR Cyan

GPS/FMS Flight

Plan

Flight Plan Course

Line

GPS FPL

Waypoint Symbols

2

FPL SYM

Active Leg:

Magenta

Other Legs: White

Class B

Class C

B

C

Green (dashed)

Green (dotted)

Airspace

Prohibited

3

Notes:

1.

Suppresses display of runways below the specified minimum length

2. 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.

3. Prohibited airspace is always displayed when in range and cannot be disabled.

Getting Started - Example

The default SN3500 map memories are set up as follows:

S: Empty

1: GPS/FMS flight plan

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MAP OPERATIONS

2: Airports, Airspace, and GPS/FMS flight plan

3: VORs and GPS/FMS flight plan

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.

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.

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 in length. Note that the airport icon shows on the map status bar 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.

Map Setup

After you are familiar with the displaying map information based on the default settings, customize the map display to suit your specific

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 6-6

MAP OPERATIONS needs. In this example, start by pressing [MAP] until “1” shows at the top of the map status bar.

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.

Figure 6-2 Map setup menu

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 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.

As an example, to display Class B airspace the following steps will be used:

• Press [M] to activate menu mode.

• Press [MAP] to display the MAP menu.

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MAP OPERATIONS

• Rotate the left knob until “MENU SEL” in the far left column is highlighted.

• Rotate the right knob until airspace is highlighted as shown below:

Figure 6-3 Select "AIRSPC"

• Next, rotate the left knob until “B” is highlighted;

• Next, rotate the right knob to toggle Class B airspace to

“ON”.

Figure 6-4 Select "ON"

• 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

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.

To access the map memory menu:

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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.

Storing Settings into Preset Memories 1-4

• Rotate the left knob until “S COPY TO” in the far left column is highlighted.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 6-9

• Rotate the left knob to highlight “CLEAR”

MAP OPERATIONS

Figure 6-6 Removing map memory

• 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.

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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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.

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Figure 6-8 Copying map settings

• Map memory "S LD FROM"

MAP OPERATIONS

SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 6-11

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

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.

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WEATHER DISPLAY INTERFACE

CHAPTER 7 WEATHER DISPLAY INTERFACE

WX-500 Stormscope® Data

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.

WEATHER DISPLAY INTERFACE

• 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.

Figure 7-1 WX-500 Stormscope display

WX Menu

The WX menu can only be accessed when a WX-500 Stormscope® is installed.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 7-1

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.

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Figure 7-3 Display menu

CELL

: Enables display of WX-500 strikes in CELL mode, which displays a lightning symbol for each group of strikes.

SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 7-2

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.

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.)

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 7-5 LTNG SRC mode menu

WX500: Display only strikes from WX-500.

WSI: Display only strikes from WSI.

BOTH: Display strikes from WX-500 & WSI.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 7-3

Figure 7-6 FIS-B weather display

General Operation

Pressing the WX button repeatedly will cycle through the four weather display modes:

1. Precipitation and Lightning [PL]

2. Precipitation

3. Lightning only [L]

4. Off

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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.

No radar coverage

No echo

Rain 20 - 30 DBZ, Light

Rain 30 – 40 DBZ, Moderate

Rain Greater than 40 DBZ, Heavy

Snow

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 7-5

WEATHER DISPLAY INTERFACE

Figure 7-8 FIS-B lightning strike age

After 15 minutes, the strike is removed from the screen.

FIS-B Services Backgrounder

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.

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.

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 7-

10 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.

.

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Figure 7-11 Visible moisture observed

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WEATHER DISPLAY INTERFACE WEATHER DISPLAY INTERFACE

(This page intentionally left blank)

Figure 7-13 Between layers

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TRAFFIC DISPLAY INTERFACE

CHAPTER 8 TRAFFIC DISPLAY INTERFACE

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.

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 Targets

Altitude Mode

2m Range Ring

Traffic Display

Mode

Figure 8-1 SN3500 with traffic

Traffic Symbology

The SN3500 uses standard RTCA symbology to represent traffic.

Alerting Traffic

DISPLAY CONDITION DESCRIPTION

Resolution Advisory

(RA) (Available with

TCAS II Only)

Immediate threat that requires evasive action.

Note: Vertical guidance information is

NOT shown on the

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 8-1

TRAFFIC DISPLAY INTERFACE

SN3500 display.

Traffic Advisory (TA)

Traffic Alert

No Bearing / No

Altitude

Traffic within 15-30 seconds of closure, or within 0.20 to 0.55nm and +/-600 to +/-800 ft of your aircraft

Alerting traffic with no bearing and no altitude information available.

Traffic Alert

No Bearing

Non-Alerting Traffic

DISPLAY CONDITION

Alerting traffic with no bearing information available.

Proximity Advisory

Other Traffic

DESCRIPTION

Traffic within 4nm and

+/-1,200 ft of your aircraft

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.

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.

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: Enables display of all targets within the selected map range.

M: Manual mode. Traffic will be displayed within the selected map range only when alerting traffic is present.

A: Auto mode. Same as Manual mode except that map range will auto-scale to an appropriate range to show the traffic on-screen.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 8-3

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.

<none>

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: 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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 8-4

TRAFFIC DISPLAY INTERFACE TRAFFIC DISPLAY INTERFACE

Figure 8-2 Traffic with moving map

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’.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 8-5

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 8-5 Altitude as flight level menu

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 8-6

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.

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 “---

“.

Note: CDI pointer will be visible under the red “X” for two minutes after power-up to allow testing for certain

GPS receivers.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 9-1

GS (glideslope) flag

GS flag, backcourse

Directional gyro failure

Fluxgate failure

FLAGS AND ABNORMAL CONDITIONS

Large red “X” through glideslope scale (VDI), glideslope pointer is not displayed.

Large yellow "X" through glideslope scale (VDI) to show that you are on backcourse approach.

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.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 9-2

Loss of gyro & fluxgate or;

Loss of gyro without fluxgate installed

Fast slave mode

Map flag

Stormscope® flag

Traffic Flags

FLAGS AND ABNORMAL CONDITIONS

Loss of compass rose. The inner course and vertical deviation indicators are removed.

Compass heading is redlined during fast slave correction.

Heading has not stabilized.

Redlined map icons indicates that the map cannot be displayed because of loss of

LNAV.

Redlined “WX” indicates loss of data communication from the WX-500 Stormscope®.

Redlined “ON”, “A” or “M” next to TFC button indicates loss of data communication from the traffic processor.

FLAGS AND ABNORMAL CONDITIONS

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MESSAGES

CHAPTER 10 MESSAGES

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.

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

MESSAGES

Message Description

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.

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MESSAGES

Message Description

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. vertical deviation indicators, and disable

Immediately monitor the lateral and 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.

MESSAGES

Message Description

FGATE EXCIT LOST Fluxgate excitation has failed. Check the gyro circuit breaker. Note 2

FGATE XYZ LOST

GYRO INVALID

GYRO XYZ LOST

Fluxgate XYZ signal voltage too low or not received.

Gyro valid flag asserted. Check the gyro circuit breaker. Note 2

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 ARINC-

429 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

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 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.

NAV2 TUNED ILS 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.

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.

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 10-5

MESSAGES

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 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 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.

Internal power supply out of specification. PWR SUPPLY FAIL

RELAY SENSE ERR This message appears with the selected relay feedback does not match.

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

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 10-6

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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MESSAGES

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TECHNICAL SPECS AND OPERATING LIMITS

CHAPTER 11 TECHNICAL SPECS AND OPERATING LIMITS

TSO Compliance

Technical

Standard Order

(TSO):

TSO-C113, Airborne Multipurpose electronic Displays

Software

Certification:

RTCA/DO-178B, Level C

Environmental

Category:

DO-160D

High Vibration:

[(A2)(F1)]ZBAB[(H)(R)]XXXXXXZBABB[WW]M[XX(E2)(F2)X]

XXA

Standard:

[(A2)(F1)]ZBABHXXXXXXZBABB[WW]M[XX(E2)(F2

)X]XXA

Physical Dimensions

Form Factor:

Width:

Height:

Length:

3ATI (ARINC 408)

3.165 in. (8.04 cm)

3.165 in. (8.04 cm)

10.3 in. (26.2 cm) overall, excluding connectors and knobs.

Weight:

Operational Characteristics

3.0 lbs (1.4 Kg)

Temperature/Altitude:

Power Inputs:

400 HZ Reference:

-20º C to + 70º C up to 55,000 ft.

22 to 33 VDC

1.5 Amperes nominal @ 27.5 VDC

26 volts nominal, less than 1 milliampere load

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 11-1

TECHNICAL SPECS AND OPERATING LIMITS

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INSTALLATION INFORMATION

CHAPTER 12 INSTALLATION INFORMATION

To be completed by installer.

Date of Installation: _____________________________________

Installer Company: _____________________________________

Installer Address:

______________________________________________________

______________________________________________________

______________________________________________________

Installer Phone: ________________________________________

Work Order #: __________________________________________

Installer: ______________________________________________

NAV Equipment Inputs: __________________________________

Notes:

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 12-1

INSTALLATION INFORMATION

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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

Course Deviation

Indicator

The next waypoint in a flight plan.

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

Failure

Equipment associated with the position opposite the installed pilot or copilot position.

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

Waypoint

The vertical deviation indicator bar (VDI) is the movable center section that depicts vertical deviation above or below glideslope or GPS final approach path.

A position on the GPS/FMS flight plan representing a change in course on-screen by a “star” symbol.

70 o

ARC View

360 o

FULL 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.

A 360-degree FULL view where the aircraft’s current position is depicted at the center of the display.

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GLOSSARY

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AVIONICS ACRONYMS

CHAPTER 14 AVIONICS ACRONYMS

ACK Acknowledge

ADF Automatic Direction Finder

AFM

AFMS

Airplane Flight Manual

Airplane Flight Manual Supplement

AHRS

AMED

AOG

Attitude/Heading Reference System

Airborne Multipurpose Electronic Displays

Aircraft On Ground (out of service)

ARP

ASL

Airport Reference Point

Above Sea Level

ATC Air Traffic Control

BIT Built-In-Test

C Celsius

CDI Course Deviation Indicator

CD ROM Read Only Memory, Compact Disc

CPU

CRC

DH

DME

EFIS

FAA

Central Processing Unit

Cyclic Redundancy Check

Decision Height (Precision approach)

Distance Measuring Equipment

Electronic Flight Instrument System

Federal Aviation Administration

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 14-1

AVIONICS ACRONYMS

FAF Final Approach Fix

FIS-B Flight Information Services-Broadcast

FLPS Flaps

FMS Flight Management System

GPS Global Positioning System

HDG

Hz

IFR

ILS

Aircraft’s magnetic heading

Hertz (cycles per second)

Instrument Flight Rules

Instrument Landing System

KTS Knots

LNAV Lateral Navigation; also Long Range Navigation

MAP Missed Approach Point

MOA

NAV

Military Operations Area

Navigation Receiver (VOR)

POH

RMI

Pilot’s Operating Handbook

Radio Magnetic Indicator

82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 14-2

RTCA

TACAN

AVIONICS ACRONYMS

Radio Technical Commission on Aeronautics

(rtca.org)

Tactical Air Navigation System

TAS Traffic Advisory System

TFC Traffic

TRK

TSO

USB

Aircraft’s ground track (usually magnetic)

Technical Standard Order

Vac

Universal Serial Bus

Volts AC (alternating current – in aircraft typically

400Hz)

Vdc

VDI

VHF

VOR

Volts DC (direct current)

Vertical Deviation Indicator (for glideslope)

Very High Frequency

VHF Omnidirectional Radio Range

AVIONICS ACRONYMS

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