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TT21/TT22 Brochure

With a front panel controller smaller than a standard instrument, and a remote transponder that is not much bigger than a pack of cards, the TT21 can fit into the smallest of aircraft – and yet it is fully certified and compliant with all the transponder requirements.

Features
Low Weight - less than 500 grams!
Minimal Panel Space
Low Power Consumption
130 Watts Nominal Output
Integrated Altitude Encoder
Simple Installation
Support for 1090ES ADS-B Out

Specifications
- Type: Class 2 Mode S Level 2 Datalink
- Certification: ETSO 2C112b, C88a, TSO C112, C88b
- Compliance: ED73B, DO160E, DO178B level B, DO254, DO181C, DO260A
- Supply Voltage (DC): 10 – 33 V
- Typical Current Consumption: Idle: 0.15 A (at 14V) Active: 0.28 A
- Transmitter Power: 130W nominal at connector
- Operating Temperature: -40 to +70 C
- Cooling Requirement: No fan required
- Weight: 1.0 lb (450 g)
- Dimensions: Controller: 64 x 45 x 45 mm
- Transponder: 62 x 45 x 141 mm

The TT21 can be mounted in a standard 57 mm (2¼ inch) instrument hole, or where space is really tight, in a compact mounting just 42 mm high.

The TT21 is TSO approved for fitting to European and FAA registered aircraft.