Avidyne Certifies AXP340 Plug-and-Play Mode S Transponder

The AXP340 transmits ADS-B information via Extended Squitter (ES) to appropriately-equipped ground stations and other ADS-B In-equipped aircraft, providing improved airborne surveillance as well as vital information for airport ground surveillance.


Lincoln, Mass. – February 6, 2014–  Avidyne Corporation, a leading provider of integrated avionics and safety systems for general aviation aircraft, today announced that they have received Technical Standard Order (TSO) and European TSO (ETSO) approval of their new AXP340 Mode S Transponder with Automatic Dependent Surveillance-Broadcast (ADS-B) Out.  The AXP340 transmits ADS-B information via Extended Squitter (ES) to appropriately-equipped ground stations and other ADS-B In-equipped aircraft, providing improved airborne surveillance as well as vital information for airport ground surveillance. Equipping with an AXP340 allows general aviation aircraft owners to meet the Federal Aviation Administration’s (FAA) NextGen mandate, as well as international requirements for ADS-B Out.

“The AXP340 is an easy-upgrade solution that meets the requirements for ADS-B Out in the U.S. and internationally,” said Patrick Herguth, Chief Operating Officer. “AXP340 also has several new functions that make flying easier for pilots including Direct-entry Numeric Keypad, one-touch VFR code entry, an easy-to-use Stop Watch Timer, Flight Timer, and Altitude Alerter.”

“ADS-B is key to the future airspace plans in the U.S., Europe, Australia and other parts of the world, and Avidyne is committed to providing innovative ADS-B avionics products for general aviation,” said Dan Schwinn, Avidyne President and CEO.   “As a stand-alone installation or as a part of a complete retrofit with our full line of panel-mounted avionics, the AXP340 provides aircraft owners with a reliable, easy-to-use ADS-B surveillance solution.”

“The AXP340 is the first in a series of panel-mounted, plug-and-play avionics products that we plan to certify throughout this year including the AMX240 Audio Panel, the IFD540 FMS/GPS/NAV/COM, and the IFD440 FMS/GPS/NAV/ COM,” Schwinn added.

About the AXP340

The AXP340 is a panel-mounted Class 1 (240Watt), Mode S, Level 2 1090MHz  Datalink Transponder with  Extended Squitter (ES) that meets all the requirements for Mode S elementary surveillance for both IFR and VFR flight.  The AXP340 encodes and transmits the required ADS-B Out information, including your aircraft’s GPS-derived position, along with ground track, ground speed and altitude, in a series of extra pulses (called Extended Squitter) on the Mode S data stream.

As a slide-in replacement for existing KT76A/KT76C/KT78A transponders, the AXP340 is designed to easily upgrade existing Mode A/C equipment to Mode S, while adding additional functionality like a Direct-entry Numeric Keypad, Pressure Altitude & GPS Lat/Lon readout, Flight ID entry, one-touch VFR code entry, a Stop Watch Timer,  Flight Timer, and Altitude Alerter.  Some additional wiring and tray replacement are required to add ADS-B functionality.

ADS-B Solutions from Avidyne

The AXP340 combines with Avidyne’s ‘ADS-B In’-capable TAS-A Series Traffic Advisory Systems to provide a complete 1090Mhz ADS-B solution to meet the upcoming mandates and to benefit from the performance enhancements being made in U.S. and International airspace.  Avidyne’s TAS-A systems provide ADS-B In capability, allowing aircraft owners to receive the ADS–B signals from ground radar and from other 1090MHz ADS-B – equipped aircraft, and display both ADS-B and non-ADS-B traffic simultaneously for optimal situational awareness and safety. For more information on ADS-B, go to www.ads-bee.com.

Pricing and Availability

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