ANTENNA TRANSPONDR (P/N uda-3) - As Removed

The UDA-3 is an L-band transponder antenna for aircraft ATC and ADS-B systems operating at 1030/1090 MHz. This externally mounted antenna provides omnidirectional vertical radiation with 50-ohm impedance, delivering RF signal interface between the aircraft transponder and ground-based air traffic control stations. The antenna connects via BNC-terminated 50-ohm coaxial cable to the transponder unit.

Installation requires mounting on a suitable conductive ground plane per manufacturer specifications to ensure proper radiation pattern and system performance. Commonly used in general aviation and business aircraft equipped with Mode C or Mode S transponder systems.

What is the ANTENNA TRANSPONDR (P/N uda-3)?

The UDA-3 is an L-band transponder antenna for aircraft ATC and ADS-B systems operating at 1030/1090 MHz. This externally mounted antenna provides omnidirectional vertical radiation with 50-ohm impedance, delivering RF signal interface between the aircraft transponder and ground-based air traffic control stations.

Is the uda-3 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The ANTENNA TRANSPONDR is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the uda-3 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the uda-3?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.