System Overview
190-01499-02
GTX 3X5 Transponder TSO Installation Manual
Rev. 9
Page 1-4
POH
Pilot Operating Handbook
RAIM
Receiver Autonomous Integrity Monitoring
RFMS
Rotorcraft Flight Manual Supplement
SATCOM
Satellite Communications
SBAS
Satellite-Based Augmentation System
SIGMET
Significant Meteorological Information
SIL
Source Integrity Level
SPI
Special Position Indicator
SUA
Special Use Airspace
TAF
Terminal Area Forecast
TAS
Traffic Advisory System
TCAS
Traffic Collision Avoidance System
TIS
Traffic Information Service
TIS-B
Traffic Information Service-Broadcast
TSO
Technical Standard Order
UAT
Universal Access Transceiver
UHF
Ultra-High Frequency
USB
Universal Serial Bus
VHF
Very High Frequency
VSWR
Voltage Standing Wave Ratio
WAAS
Wide Area Augmentation System
1.4
ADS-B Capabilities
1.4.1 ADS-B Out
The GTX 335 and GTX 345 include ADS-B Out capabilities when installed with an approved internal or external GPS
position source.
1.4.2 ADS-B In
For all ADS-B In data reception capabilities, the GTX 345 includes receivers for both the UAT and the 1090 MHz
frequency bands. The GTX 345 receives ADS-B transmissions from other ADS-B Out equipped aircraft, ADS-R, and
TIS-B information from ground stations. Traffic information received from these transmissions supply compatible
ADS-B In data to CDTIs to show the pilot.
1.4.3 Installation Approval for ADS-B Systems
The conditions and tests necessary for TSO approval of the GTX 3X5 are minimum performance standards. It is the
responsibility of the installer to determine if the aircraft installation conditions are within the TSO standards. TSO units
must have separate approval to install in an aircraft. The GTX 3X5 can be installed only in compliance with
14 CFR Part 43 or the applicable airworthiness requirements.
All GTX 3X5 unit functions are design-approved under the TSO. Changes or modifications to any unit that are not
approved can void the compliance to necessary regulations and authorization for continued equipment usage.
It is the installer’s responsibility to make sure the ADS-B Out system installation is compliant with
14 CFR 91.227 and to make sure compatibility between the GTX 3X5 and the ADS-B Out equipment. For compatible
equipment that is applicable for 14 CFR 91.227-compliant installations in accordance with AC 20-165A refer to
Garmin ADS-B Out Compatible Equipment. FIS-B information is for pilot-planning and pilot near-term decisions. The
information shown are areas of inclement weather that are out of visual range or are not easily seen.