Garmin GI-205 Pilots Guide - Page 4

Section 1 – GI 205 Overview

1.1 Introduction

This manual describes the operation of the Garmin GI 205 Radar Altimeter Indicator

(manufactured by SANDIA Aerospace).

The GI 205 is designed to operate exclusively

with the Garmin GRA 55 or GRA 5500 radar altimeters.

1.2 GI 205 Product Description

The GI 205 can be installed as a stand-alone display of radar altitude or in parallel with

an integrated avionics suite.

In a stand-alone installation, the pilot may input a Decision Height (DH) setting on the

GI 205 display, and the GI 205 deduces the DH crossover point and generates

appropriate visual and aural alerts. DH alerting in this scenario is independent of the

GRA 55/5500.

The GI 205 can also be installed in parallel with an integrated avionics suite. In this

scenario, the GI 205 provides a dedicated radar altitude display. The GI 205 can be

configured to disable the redundant local Decision Height alerts, and it can optionally

generate aural or visual alerts based on discrete outputs from the integrated avionics.

1

Illustration 1: GI 205 Overview

Section	Page
Section 1 – GI 205 Overview	4
1.1 Introduction	4
1.2 GI 205 Product Description	4
1.2.1 Functions	5
1.2.2 System Interfaces	5
Section 2 - Normal Operation	6
2.1 Initial Power On	6
2.2 Pilot Display and Controls	6
2.2.1 Push Test Button and Encoder	6
2.3 Radar Altitude	7
2.4 Decision Height	7
2.5 Decision Height Alerts	8
2.6 Trend Indicator	8
2.7 “ALT1”	9
2.8 “ALT2”	9
2.9 Pilot Configurable Options	9
2.9.1 MIN BRIGHTNESS	9
2.9.2 VOLUME	9
2.9.3 ALTITUDE UNIT	10
2.9.4 ALTITUDE TREND	10
Section 3 – Failure Conditions	11
3.1 Flash Check	11

Garmin GI-205 Pilots Guide - Page 4

GI 205 Overview

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