Avidyne AXP322 Map Update – Transponder Sync Guide

The Avidyne AXP322 is a remote-mounted Mode S transponder that supports full ADS-B Out compliance when paired with an approved GPS source like the IFD series. While the AXP322 itself doesn’t contain maps, ensuring that the paired GPS or navigation systems are updated is essential for accurate position reporting and proper ADS-B operation.

Why Map Sync Matters for AXP322

• Transmits precise position data to ATC and nearby aircraft via ADS-B
• Relies on current GPS information from an IFD440/540/550 or Entegra EX5000
• Outdated GPS data can result in inaccurate ADS-B broadcasts
• Updated maps improve integrity and compliance with FAA airspace regulations

How to Update GPS Maps for AXP322 Integration

• Identify your paired navigation unit (typically an IFD-series GPS)
• Install Jeppesen Distribution Manager (JDM) on your computer
• Connect your USB or data card and download the latest navigation database
• Insert the updated card into the IFD unit and complete the boot sequence
• After GPS update, verify ADS-B Out position accuracy through the AXP322

Firmware Compatibility Check

• Ensure that AXP322 is running the latest firmware from Avidyne
• Firmware updates may be bundled with system-level updates from the IFD or EX-series units
• Contact Avidyne support or your authorized dealer to request latest firmware if needed

Post-Update Validation

• Perform a ground test of ADS-B Out position accuracy
• Use a compliance monitoring tool like FAA’s Public ADS-B Performance Report (PAPR)
• Ensure TIS-B and FIS-B data are being received properly on your displays
• Check AXP322 status via the IFD interface or diagnostics tool

Even though the AXP322 doesn't host maps directly, its function is tightly coupled with the data fed from your navigation units. Keeping those systems updated ensures ADS-B Out performance, FAA compliance, and airspace integrity are maintained during every flight.