Trig TT21 Remote Transponder FAA TSO

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Part# 11-16847
MFR Model# 00565-00-01


The Trig TT21 transponder is uniquely useful to HXr users because it is able interface with the EFIS remotely, eliminating the need for a separate control head on the instrument panel. This supplement is designed to help you connect the transponder to the HXr display unit and program it to allow optimal performance of both units.(Head Unit, not included)
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WARNING: Cancer and Reproductive Harm -


The interface between this transponder and the HXr allows for:

  • Remote mounting, saving space on the panel and providing a clean, integrated design
  • Certified Mode S with 1090-ES/ADS-B Out Support
  • Available as Class 1, 250-watt output (TT22) or Class 2, 130-watt output (TT21)
  • Specifications

    Specification TT21
    Type Transponder Class 1 Mode S level 2elsADS-B Class B0
    Certification ETSO C88A, C112C, C166A
    TTSO C88b, C112c, C166b, approved for IFR and VFR flight
    Compliance ED-73C, DO-160F, DO-178B Level B,
    DO-254 Level C, DO-260B, DO-181D
    Supply Voltage (DC) 9-33 V
    Typical Current Consumption (at 14v) idle: 0.15A active: 0.28 A
    Nominal Transmitter Power 130 W at connector
    Operating Temperature for the transponder -40C to +70C
    for the controller -25C to +70C
    Cooling Requirement No fan required
    Weight 440g / 0.8 lbs
    Dimensions (mm) controller: H 44 x W 63 x L 54 mm
    transponder in tray: H 48 x W 68 x L 160 mm
    Dimensions (inches) controller: H 1.8 x W 2.4 x L 2.1 inches
    transponder in tray: H 1.8 x W 2.6 x L 6.2 inches
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    Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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