Aviation's Panel Mount Avionics Installation Leader

Transponder Redefined

Mode S ADS-B OUT Transponder
Mode S + ADS-B OUT Transponder meets airspace requirements worldwide.

Integrated Certified GPS Receiver
tailBeaconX includes a certified SBAS GPS receiver and antenna. No additional GPS is required.

Aireon Compatible
The tailBeaconX with integrated dipole antenna is specifically designed to maximize performance when tracked by the Aireon space-based ADS-B satellite constellation.

LED Lighting
The integrated 20,000 hour rated LED position light ensures the tailBeaconX draws less power than your old incandescent bulb.

Think Outside the Airframe

tailBeaconX is the world’s first transponder designed as a rear position light replacement. The 1090MHz Mode S ADS-B OUT transponder satisfies the requirements for all existing and inevitable ADS-B regulations worldwide, especially those leveraging space-based ADS-B. Fly knowing no matter your destination, tailBeaconX will keep your aircraft connected.

World-Wide Coverage

tailBeaconX embraces the future, providing precision ADS-B data to the Aireon satellite network without the need for diversity antennas. When it comes to terra firma, tailBeaconX also exceeds the performance of traditional panel installed transponders that use belly mount antennas.

Less Ground Time Easiest Install

tailBeaconX mounts in place of your existing rear position light. The GPS, space-based, and ground-based antennas are integrated in to the lens housing. No new holes or penetration of pressure vessels are required making tailBeaconX the lowest-hassle easiest install period.

Install Comparison


tailBeaconX only requires serial control to the rear position light location. No new antennas to mount, no new holes in the airframe. The cost and complexity of the tailBeaconX installation is minimal.

Other Diversity Transponders

A traditional diversity installation requires three seperate antennas. The GPS antenna and transponder antennas are typically not included increasing cost. Each antenna requires a separate coaxial run. In most cases, the entire aircraft interior must be removed to complete the installation. Labor for the installation typically exceeds the cost of the equipment.

Looking to the Future

ailBeaconX is the first commercially available avionics solution developed with the needs of Urban Air Mobility (UAM) in mind. Electric Vertical Take Off and Landing (eVTOL) aircraft, powered by batteries and alternative fuels, require radically different solutions than those that exist today. tailBeaconX weighs only 90 grams, takes no critical volume from an internal avionics bay, incorporates its own antennas, and draws only 3 watts of power. This results in longer flight times and higher payload capacity for the next generation of airborne mobility.

Instant Setup and Configuration

Mechanically installing tailBeaconX is the first easy step. With uAvionix’s mobile app, configuration is just as simple. Our mobile application (available for both Apple iOS and Android) guides your installer through setting the necessary values including the ICAO address, emitter type, aircraft length, width and GPS offsets.

More than a Mandate

The AV-20-E and AV-30-E have been upgraded to include transponder control functionality! The tailBeaconX combined with the AV-30-E or AV-20-E multiplies your cockpit functionality while future-proofing your ADS-B system to meet current and inevitable mandates worldwide.

  • Input Voltage: 11-31V DC
  • Operating Power: 3 Watts
  • Size: 113x105x48mm
  • Weight: 90 grams
  • SDA/SIL: 2/3
  • Operating Temp -45°C to 70°C

1090ES ADS-B Transmitter

  • Power Classification: 250 Watts Nominal


  • Tracking: -166dBm
  • Reacquisition: -160dBm
  • Cold Start: -148dBm

LED Position Light

  • Color: Aviation White
  • Intensity: 20 candelas

Control Head

  • Physical: RS232 or Power Line Modem
  • Protocol: UCP


  • FCC ID: 2AFFTP200S


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California Residents:

Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.