The AXP340 transponder is a panel-mounted Class 1 Mode S Level 2 Datalink Transponder, with support for 1090MHz Extended Squitter (ES), that meets all the current requirements for Mode S elementary surveillance transponders for both IFR and VFR flight. As a slide-in replacement for existing KT76A/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, an easy-to-use Stop Watch Timer, Flight Timer, and Altitude Alerter.

Meeting the Mandate for ADS-B

The AXP340 also supports the latest Version 2 1090 MHz Automatic Dependent Surveillance Broadcast (ADS-B) Extended Squitter, known as “ADS-B out”. Equipping with ADS-B Out will be required in most U.S. airspace by 2020. The AXP340, when linked to a suitable GPS receiver, transmits position information to appropriately-equipped ground stations and other aircraft. This provides improved airborne surveillance, provides vital information for airport ground surveillance, and is a key feature of future airspace plans.

Specifications

Dimensions

• Width: 6.30" (160mm)
• Height: 1.57" (40mm)
• Depth: 9.40" (239mm)

• 2.98 lbs (1.35 kg)

• Class 1 Mode S Level 2es Datalink
• Elementary Surveillance

• TSO C112d, TSO C166b
• ETSO 2C112d, ETSO C166b

• ED73E, DO160G, DO178B level B, DO181E, DO254 Level C, DO260B, AC 20-165 ADS-B Out

• 10 – 33 V
• Idle: 0.22 A, Active: 0.45 A
• 240W nominal at connector

• -20 to +55 C, 35,000ft
• No external cooling fan required

• Avidyne GPS (including R9)
• Garmin GNS430W/530W Series

• Gray Code & Serial Altitude Inputs
• Serial Altitude Output
• External Standby Input
• Weight on Wheels Input
• External Ident Input