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Trig TC20 Control Head for TT21 & TT22 Transponders
Trig TC20 panel mounted control head controls a remotely mounted TT21 or TT22 Mode S transponder. It mounts into the panel using a 57 mm (2-1/4 inch) round hole or smaller compact mount. The unit displays the operation mode of the transponder, reported pressure altitude, current squawk code, and flight ID.
$605.00See Our Price in Cart -
Trig TT22 Mode S Class 1 Transponder | Remote Unit – Certified
The innovative design of the Trig TT22 transponder saves both space and weight while delivering certified performance. The transponder kit comes in two parts: a compact control head that includes a built-in altitude encoder, and a separate hardware box that can be installed anywhere in the airframe.
$2,087.00See Our Price in Cart -
Trig TN70A WAAS GPS Position Source & Antenna Kit
Trig TN70A WAAS GPS receiver and antenna kit provides an affordable solution for adding a certified FAA TSO C145 WAAS GPS receiver to an existing ADS-B Out installation. The TN70A is compatible with the Trig TT22 transponder — making installation simple and ADS-B compliant. The TN70A can be installed as a discrete GPS unit while leaving the existing panel equipment in place.
$2,247.75 -
Trig TT22 Mode S Class 1 Transponder | Complete Kit – Certified
The innovative design of the Trig TT22 transponder saves both space and weight while delivering certified performance. The transponder kit comes in two parts: a compact control head that includes a built-in altitude encoder, and a separate hardware box that can be installed anywhere in the airframe.
$2,663.00See Our Price in Cart -
Trig TT31 Mode S, ADS-B Out Transponder
Trig TT31 Transponder is the perfect retro-fit unit for the popular Bendix King KT76A and KT78A transponders. The TT31 is a certified Class 1 transponder that will ‘plug and play’ straight into the existing Bendix King tray, significantly reducing both installation time and cost. It provides pilots with class-leading Mode S technology that is also 1090ES ADS-B Out capable too – to the latest international standard.
$2,595.00$2,839.00Trig TT31 Mode S, ADS-B Out Transponder
$2,595.00$2,839.00 -
Trig TT31 Mode S, ADS-B Out Transponder | Complete Kit
Trig TT31 Transponder – The ADS-B capable Mode S Transponder saving both installation time and money. The TT31 transponder is the perfect retro-fit unit for the popular Bendix King KT76A and KT78A transponders.
$2,730.00$2,930.00Trig TT31 Mode S, ADS-B Out Transponder | Complete Kit
$2,730.00$2,930.00 -
Trig Complete VFR Package – TY91 Radio, TT22 Transponder & Harnesses
Trig Avionics’ complete VFR bundle features the completing compact, lightweight, and certified Trig TY91 VHF radio and Trig TT22 S Mode transponder with class-leading 1090ES ADS-B out capabilities. To ensure a smooth and hassle-free installation, the Trig complete VFR package also includes factory-pre-made wiring harnesses.
$4,295.00$4,786.00Trig Complete VFR Package – TY91 Radio, TT22 Transponder & Harnesses
$4,295.00$4,786.00 -
Trig Avionics Complete Stack
Trig Avionics complete stack bundle includes an audio panel, VHF radio, NAV/COM, and ADS-B capable S Mode transponder. Trig stack’s slimline design saves valuable space while offering an impressive set of practical features for up to 4 users.
$9,950.00$10,895.00Trig Avionics Complete Stack
$9,950.00$10,895.00
Trig Avionics

Trig Avionics, which was founded in 2004, is a globally recognized supplier of approved avionics products, catering to aircraft owners and operators worldwide. They are known for their creative, high-quality, and cost-effective solutions. Trig provides a range of products, all designed to make use easier and improve the overall flight experience. The company’s motto is ‘Better by Design,’ a principle that guides them to develop products that are not only rich in features but also user-friendly for pilots.
As Trig approved dealer, AllAvionics.com carries the complete lineup of Trig products. Explore Trig’s transponders, radios, NAV/COMs, audio panels, GPS receivers, antennas, wiring harnesses & install kits.