Garmin and ForeFlight Looking into ADS-B Challenges

Firmware ‘compatibility issue’ is being blamed for recent traffic display interruptions.

Meg Godlewski

Wednesday, August 09, 2023 at 05:47 PM ET

Verified

ForeFlight and Garmin are presently working together to fix the issue.

Key Takeaways:

A compatibility issue between ForeFlight Mobile and Garmin GNX 375 GPS navigators (firmware v3.13 and later) has been identified.
This issue can temporarily interrupt or disable the display of ADS-B traffic in ForeFlight Mobile, especially in high-traffic environments.
Traffic display on Garmin GNX devices themselves or in Garmin Pilot is not affected by this problem.
ForeFlight and Garmin are collaborating on a fix, with a Garmin firmware update expected to be available by September 2023.

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The aircraft passed off our right— not terribly close, as we saw it and avoided it with ease. But we had a mystery: Why didn’t the ADS-B give us an announcement?

The answer came this week in the form of an email from ForeFlight that stated “the ForeFlight and Garmin teams identifying ‘a compatibility issue’ between ForeFlight and recent firmware versions (v3.13 and later) of Garmin’s GNX 375 GPS navigator and ADS-B In/Out transponder.” According to the email, “the issue can temporarily interrupt or disable the display of ADS-B traffic in ForeFlight Mobile while connected to this device.”