Installation Instructions

190-01007-A3 GTN 6XX/7XX AML STC Installation Manual
Rev. 4 Page 1-1
1 GENERAL DESCRIPTION
1.1 Introduction
This manual is written for software version 2.00 or later. The software version and information in this
document are subject to change without notice. Visit the
Dealer Resource Center on Garmin’s website
(
www.garmin.com) for current updates and supplemental information concerning the operation of this
and other Garmin products.
This manual describes the physical, mechanical, and electrical characteristics as well as instructions,
conditions, and limitations for installation and approval of the GTN 6XX and 7XX navigators as well as
the optional GMA 35. The GTN AML STC SA02019SE-D applies to the optional GMA 35 audio panel
as well as the GTN 625/635/650 and GTN 725/750.
1.2 Terminology
Except where specifically noted, references made to the ‘GTN’ will equally apply to the
GTN 625/635/650/725/750. In addition, ‘GTN 7XX’ refers specifically to the GTN 725 and GTN 750,
and ‘GTN 6XX’ refers specifically to the GTN 625, GTN 635, and GTN 650.
Throughout this document references will be made to ‘metallic’ and ‘nonmetallic’ aircraft. For the
purposes of this installation manual, metal aircraft will be those with an aluminum skin. Nonmetallic
aircraft will refer to all other aircraft (e.g., wooden aircraft, aircraft with composite skin, or aircraft with
tube and fabric construction).
SBAS (Satellite-Based Augmentation System) refers to a system that supports wide-area augmentation
through the use of broadcast messages from satellites to improve the GPS navigation system accuracy.
SBAS is a general term used to describe systems such as WAAS (Wide Area Augmentation System) and
EGNOS (European Geostationary Navigation Overlay Service).