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L3 Communications GH-3100 User Manual

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Pilot’s Guide
for the
Electronic Standby
Instrument System
Model GH-3100
Software Version 1.x and 3.x
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L3 Communications GH-3100 Specifications

General IconGeneral
BrandL3 Communications
ModelGH-3100
CategoryGPS
LanguageEnglish

Summary

Introduction to GH-3100

Welcome and System Overview

Congratulates the user and introduces the GH-3100's advanced features and benefits.

Key Technical Aspects

Highlights the GH-3100's solid-state design, lack of moving parts, and innovative history.

Pilot's Guide Purpose and Scope

Guide Objectives and Capabilities

Outlines the guide's purpose for operation, troubleshooting, and system capabilities like pitch, roll, and air data.

GH-3100 Equipment Details

Detachable Configuration Module (DCM)

Describes the DCM's role in storing configuration data for easy replacement of the GH-3100 unit.

Aircraft Interface and Air Inputs

Lists static and pitot air inputs and optional aircraft interfaces like FMS/GPS, DME, VOR/ILS, TACAN.

Physical Specifications and Weight

Provides the GH-3100's physical dimensions, panel cutout, and weight savings compared to electromechanical systems.

Optional Magnetometer and DCM Functionality

Explains the MAG-3000 magnetometer for heading and the DCM as a memory device for configuration.

Screen Features and Menu Navigation

Accessing the GH-3100 Menu System

Explains how to access the GH-3100's menu using the Menu Access Button.

Navigating and Selecting Menu Items

Describes scrolling through menu items using the Adjustment Knob and selecting/toggling options.

Adjusting Menu Values and Sub-Menus

Details how to select, adjust values in sub-menus, and toggle menu items using the Adjustment Knob.

Common Menu Item Functions

Lists various menu functions like FAST ERECT, SET BRIGHTNESS OFFSET, FAST ALIGN, NAV, etc., and their operations.

Barometric Setting Adjustments

Displaying and Adjusting Barometric Pressure

Shows the barometric setting location and how to adjust it using the Adjustment Knob.

Standard Pressure and Unit Selection

Explains how to set the standard pressure (29.92 InHg) and the available barometric types.

Attitude Information Display Details

Attitude Data Generation and Display

Describes how pitch and roll data are generated by internal sensors and displayed on the screen.

Key Attitude Display Components

Identifies key attitude display elements like Horizon Line, Roll Scale, Slip/Skid Indicator, and Aircraft Symbol.

Handling Attitude Events and Errors

Explains Extended Maneuver indications and procedures like FAST ERECT and FAST ALIGN for attitude correction.

Air Data Information Display

Air Data Display Formats and Readouts

Details Air Data information including airspeed, altitude, and vertical speed displayed in tape and digital readout formats.

Altitude Readout Options and Types

Shows possible altitude readouts, including digital, rolling digits, and metric equivalents.

Airspeed Readout Formats and Indicators

Illustrates airspeed displays, including Mach Speed Indicators, digital readouts, and tape formats with color codes.

Navigation Information Display

Navigation Display Integration and Purpose

Describes how navigation information shares space with attitude and is designed to match primary systems.

Supported Navigation Modes and Sources

Lists various navigational modes like FMS, NAVR, VOR, ILS, TCN, and GPS supported by the system.

TACAN and ILS Navigation Displays

Shows typical TACAN and ILS mode display screens with labeled components like TO/FROM indicator and Course Setting.

VOR Navigation and Software Versions

Details VOR mode display with DME and explains software version differences in navigation configuration options.

Heading Information Display

Heading Tape and DG Indicator Function

Explains the Heading Tape display and DG indication during loss of heading source.

Course Arrow and Setting on Heading Tape

Describes the Course Arrow on the Heading tape for VOR, ILS, FMS/NAV, or TACAN, indicating 'To' or 'From' course.

Start-Up and Self Test Procedures

Power ON Self Test Overview

Explains the automatic self-diagnostic process that occurs upon power application.

Identification Mode Screen Display

Describes the Identification Screen that appears after a successful self-test, showing system configuration and software details.

Handling System and Function Failures

Details error messages or codes appearing on the Identification Screen for System or Function Failures.

Troubleshooting System Test Failures

Explains how to handle "System Test Failure" messages, including performing a Power Reset and when to suspect service is needed.

Sensor Alignment Mode Operation

Describes the Sensor Alignment Mode, its progress, and what happens if alignment is unsuccessful.

Normal Operation and Invalidity Indicators

Explains normal operation, diagnostic self-tests, and invalidity indications for Air Speed and Altitude.

Attitude and Heading Invalidity Management

Details Attitude Failure and Heading Tape Invalidity indications, including when they appear and what they signify.

Navigation Invalidity Detection and Display

Explains how Navigation Invalidities are detected and displayed, and the need to check source units.

Addressing Internal Faults and Red X

Describes temporary Red X indications for internal faults and how to handle persistent "System Test Failure" with Red X.

Power Reset Needed Warning Message

Details the "WARNING Power Reset Needed" message prompting crew intervention for uncorrectable internal conditions.

Troubleshooting Common Issues

BIG RED X Error Handling

Covers troubleshooting steps for BIG RED X appearing during start-up or normal operation.

Warning Displays and System Failure Resolution

Addresses WARNING displays prompting Power Reset and Identification Screens indicating System Failure.

Resolving Invalidity and Failure Indicators

Discusses troubleshooting Invalidity in Navigation, Attitude Failure, pitch/roll discrepancies, and Extended Maneuver indications.

GH-3100 System Specifications

GH-3100 Indicator Technical Data

Lists specifications for the GH-3100 Electronic Standby Indicator, including power, weight, connectors, and ranges.

DCM and Magnetometer Component Specs

Provides specifications for the DCM Detachable Configuration Module and the MAG-3000 Magnetometer, covering power, weight, and dimensions.