Garmin GTX 325 User Manual

190-01499-02 GTX 3x5 TSO Installation Manual
Rev. 1 Page 1-1
1 SYSTEM OVERVIEW
1.1 Scope
Mechanical and electrical information for use in the planning and design of an installation of the GTX 3x5
into an aircraft is provided in this manual. This manual is not a substitute for an approved airframe-specific
maintenance manual, installation design drawing, or complete installation data package. Attempting to
install equipment by reference to this manual alone and without first planning or designing an installation
specific to your aircraft may compromise your safety and it is not recommended. The content of this
manual assumes use by competent and qualified avionics engineering personnel and/or avionics
installation specialist using standard maintenance practices in accordance with Title 14 of the Code of
Federal Regulation and other relevant accepted practices.
NOTE
Garmin recommends installation of the GTX 3x5 by a Garmin–authorized installer. To the
extent allowable by law, Garmin will not be liable for damages resulting from improper or
negligent installation of the GTX 3x5. For questions, contact Garmin Aviation Product
Support at 1-888-606-5482.
1.2 Equipment Description
The GTX 3x5 is a family of ATCRBS and Mode S transponders, with some models including ADS-B in
capabilities and optional internal GPS/WAAS receivers. The following is a summary of the different units.
Table 1-1 GTX 3x5 Units
The GTX 325 is an ATCRBS transponder.
The GTX 335 is a Mode S transponder with ADS-B extended squitter capability.
The GTX 345 is a Mode S transponder with ADS-B extended squitter capability and also includes UAT
and 1090 receivers for ADS-B in capabilities.
The GTX 335 and GTX 345 units can be ordered with an internal GNSS receiver, used for the ADS-B
extended squitter output or as remote-mounted units. Remote mounted units do not have a front panel with
a display or keypad.
Feature
GTX
325
GTX
335
GTX
335 w/
GPS
GTX
335R
GTX
335R
w/
GPS
GTX
345
GTX 3
45 w/
GPS
GTX
345R
GTX 3
45R w/
GPS
ATCRBS X
Mode S X X X X X X X X
Panel Mount X X X X X
Remote X X X X
ADS-B out (1090) X X X X X X X X
ADS-B in
(UAT,1090)
X X X X
Internal GPS X X X X
Bluetooth X X X X

Garmin GTX 325 Specifications

General

Brand	Garmin
Model	GTX 325
Category	Marine Radio
Language	English