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AXP340 Mode S Transponder, with ADS-B Out

AXP340 Mode S Transponder, with ADS-B Out

Item:   AVDN AXP340
Plug & Play: $3,995.00 + Install
for Existing KT76A/C & KT78A Models
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AXP340 Mode S Transponder, with ADS-B Out, by Avidyne

Avidyne’s AXP340 Mode S Transponder provides an ADS-B Out solution for general aviation aircraft in a simple, easy-to-use, plug & play design.
  • Panel-mounted Class 1 (240Watt), Mode S
  • Level 2 1090MHz Datalink Transponder with Extended Squitter (ES)
  • Plug & Play replacement for existing KT76A/C & KT78A transponders
  • Meets requirements for Mode S elementary surveillance for both IFR and VFR flight
  • Meets the mandate for ADS-B Out
  • Antenna sold separately

AXP340 ADS-B Mode S Transponder

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.

The AXP340 provides an affordable and lightweight Mode S Surveillance and ADS-B Out solution for fixed wing and helicopter operators. The AXP340 is a slide-in replacement for the venerable KT76A transponder, making it a great choice for upgrades, as well as for new installations. (Additional wiring required for ADS-B functionality.)

The Mode S Advantage

The AXP340 delivers 240 Watts of transmitter power, and responds to both legacy Mode A/C interrogations and to Mode S interrogations from both ground radar and airborne collision avoidance systems. In the Mode S environment (S stands for Select), a Mode S interrogator can selectively address a single transponder. This allows accurate position plotting with lower reply rates, which in turn reduces frequency congestion and interference.

Your 1090Mhz ADS-B Solution

Coupled with any of Avidyne‘s TAS600A ADS-B capable Traffic Advisory Systems, the AXP340 provides full ADS-B surveillance capability to meet the upcoming mandates for flight internationally and above and below FL180 in the U.S. The AXP340 transmits the required ADS-B Out signals including your aircraft’s GPS-derived position, along with ground track, ground speed and altitude information. The TAS600A provides ADS-B In, allowing you 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.

The AXP340 & TAS600A combine to provide complete 1090MHz ADS-B solution. ADS-B & TAS traffic can be displayed on a wide range of displays including Avidyne’s EX600 and MHD300 (shown here), providing the highest level of situational awareness and safety.
  • Dimensions
    • Width: 6.30" (160mm)
    • Height: 1.57" (40mm)
    • Depth: 9.4" (239mm)
  • Weight: 2.98 lbs (01.35 kg)
  • Type: Class 1 Mode S Level 2 Datalink, Elementary Surveillance, Enhanced Surveillance
  • Certification: TSO C112c, TSO C166b; ETSO 2C112b, ETSO C166b
  • Compliance: ED73B, DO160E, DO178B level B, DO181C, DO260B, AC 20-165, ADS-B Out
  • Power: 10 – 33 V; Idle: 0.22 A, Active: 0.45 A; 240W nominal at connector
  • Environmental: -20 to +55 C, 35,000ft.; No external cooling fan required.
  • GPS Compatibility:
    • Avidyne GPS (including R9)
    • Garmin GNS430W/530W Series
    • Garmin GTN650/750 Series
    • FreeFlight Model 1201/1204
    • NexNav mini-T
  • Other Interfaces:
    • Gray Code & Serial Altitude Inputs
    • Serial Altitude Output
    • External Standby Input
    • Weight on Wheels Input
    • External Ident Input
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