General Description; Introduction; Equipment Description; Table 1-1. Gtn Units - Garmin GTN 725 Installation Manual

1. GENERAL DESCRIPTION

1.1

Introduction

This manual describes the physical, mechanical, and electrical characteristics, as well as instructions and
other conditions and limitations for installation and approval of the GTN units. Refer to Section 6,
Limitations, for additional information and other considerations.
Except where specifically noted, references made to GTN will equally apply to the
GTN 725 and GTN 750.
MODEL
GTN 725
GTN 750
1.2

Equipment Description

The GTN 725 is a GPS/WAAS unit that meets the requirements of TSO-C146a (specified in Table 1-4)
and may be approved for IFR en route, terminal, non-precision, and precision approach operations.
The GTN 750 includes all the features of the GTN 725 and includes an airborne VHF communications
transceiver and airborne VOR/LOC and glideslope receivers. The GTN 750 meets the requirements of the
TSOs specified in Table 1-4.
The GTN use lenses coated with a special anti-reflective coating that is very sensitive to
waxes and abrasive cleaners. CLEANERS CONTAINING AMMONIA WILL HARM
THE ANTI-REFLECTIVE COATING. It is very important to clean the lens using a
clean, lint-free cloth and an eyeglass lens cleaner that is specified as safe for anti-
reflective coatings.
The use of ground-based cellular telephones while aircraft are airborne is prohibited by
FCC rules. Due to potential interference with onboard systems, the use of ground-based
cell phones while the aircraft is on the ground is subject to FAA regulation 14
CFR §91.21.
FCC regulation 47 CFR §22.925 prohibits airborne operation of ground-based cellular
telephones installed in or carried aboard aircraft. Ground-based cellular telephones must
not be operated while aircraft are off the ground. When any aircraft leaves the ground, all
ground-based cellular telephones on board that aircraft must be turned off. Ground-based
cell phones that are on, even in a monitoring state, can disrupt GPS performance.
All screen shots used in this document are current at the time of publication. Screen shots
are intended to provide visual reference only. All information depicted in screen shots,
including software file names, versions, and part numbers, is subject to change and may
not be up to date.
GTN 725/750 TSO Installation Manual
190-01007-02
NOTE

Table 1-1. GTN Units

PART NUMBER COLOR
011-02281-00 BLACK
011-02282-00 BLACK
011-02282-10 GRAY
CAUTION
CAUTION
CAUTION
NOTES
10 WATT UNIT
10 WATT UNIT
Page 1-1
Rev. A