Trig Avionics

Trig Avionics Limited is a certified avionics manufacturer founded in January 2004 and based at the Heriot Watt Research Park in Edinburgh, Scotland. It designs, manufactures and supports transponders, radios, nav/com units, audio panels and GPS position sources for general aviation aircraft, sold through a network the site puts at over 800 Approved Trig Dealers in 42 countries. A European office, Trig Avionics Europe B.V., opened in Amersfoort in the Netherlands in 2018. In May 2025 Trig joined Dynon Avionics and is now part of The Dynon Group.

Products

• Stack family: TMA audio panel, TX56 and TX57 nav/com, TY96 and TY97 VHF radios and TT31 transponder, described on the site as a space-efficient stack
• Compact family: TT23 transponder (the latest compact transponder), TT21 and TT22 transponders, TY91 and TY92 radios with TC20 and TC90 control heads
• GPS position sources for ADS-B Out: TN70 and TN70A, TN72, and TN72 ADS-B bundles
• Antennas: TA17 and TA10 VHF com antennas, TA14 and TA12 transponder antennas, TA70 and TA50 GPS antennas
• Wiring harnesses for radios and transponders

History

CEO Andy Davis, a pilot, started Trig to build a solid state, energy efficient Mode S transponder when a European Mode S mandate left aircraft owners with few options. The resulting TT31 was the company's first product. The site says Trig has a wide range of EASA and FAA approvals that help owners meet regulatory changes, and it credits Archangel Investors, Scottish Enterprise and the Amersfoort Chamber of Commerce for their support. Trig is a privately held limited company.

Approvals

• EASA Design Organisation Approval AP205
• EASA Production Organisation Approval NL.21G.2389
• EASA Maintenance Organisation Approval NL.145.1389
• UK CAA Maintenance Organisation Approval UK.145.01123
• Installation approvals published on the site: EASA Minor Change Library, CS-STAN, EASA and FAA STC programmes, and STCs for qualified installers

Support

Trig asks customers to buy through an Approved Trig Dealer, who provides sales advice, installation and software updates. Factory support runs through Approved Trig Service Centres in Europe, North America and Australia. The site publishes install and user manuals, software and service bulletins for each product line, a radio database tool and a Mode S address converter.

Contact

European office: Hardwareweg 3, 3821 BL Amersfoort, Netherlands
Description from the company's website (October 2026). Not a Cirrus Aircraft authorized service center. Is this your company? Claim this page to add photos and keep your details up to date.