Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit


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Current Price: 1,340.00 USD

Up for sale is an Avidyne AXP340 panel-mount aircraft transponder, removed from an amateur-built aircraft project.


This unit belonged to an amateur aircraft pilot who was unable to complete or fully utilize the installation due to health complications. As a result, the transponder saw little to no operational use beyond storage and initial handling.


⚠️ IMPORTANT – CERTIFICATION REQUIRED

This transponder WILL REQUIRE RECERTIFICATION / BENCH CHECK prior to installation and flight use. It is being sold untested and is ideal for an avionics technician, repair station, or builder who performs certifications or has access to avionics testing equipment.


Original certification was lost in the estate.


Key details:

• Model: AXP340

• Voltage: 11–33 VDC

• Serial Number: 00800

• TSO Approved (see data plate in photos)

• Manufactured by Trig Avionics Ltd. (UK) for Avidyne

• Originally purchased from a professional aviation supplier (Steel Aviation or similar)

• Comes with original box (not pictured — boxes were mixed during a move)

• Original documentation not included (lost during estate process)


Condition notes:

• Exterior shows minimal cosmetic wear, consistent with careful storage

• Buttons, display, knobs, and connectors appear intact

• No tray, antenna, cables, or manuals included unless shown

• Sold AS-IS for recertification


This unit is best suited for:

• Avionics shops

• Experimental / amateur-built aircraft builders

• Buyers who regularly perform avionics inspection, testing, and certification


Buyer is responsible for installation, configuration, testing, and any required certification or regulatory compliance.


Please review all photos carefully and ask any questions before purchase.



Item Specifics

• Brand: Avidyne

• Model: AXP340

• Type: Aircraft Transponder

• Mounting: Panel Mount

• Voltage: 11–33 VDC

• Country/Region of Manufacture: United Kingdom

• Serial Number: 00800

• Compatibility: Experimental / Amateur-Built Aircraft

• Condition: Used

• Included Items: Transponder unit only (box included, documentation not included)



Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit
Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit
Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit


Click here to purchase or contact the seller of this item on eBay