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:

ForeFlight users encountered a compatibility issue causing intermittent or disabled ADS-B traffic display in ForeFlight Mobile when connected to Garmin GNX 375 navigators with firmware v3.13 or later.
This bug specifically impacts ForeFlight's ability to show ADS-B traffic, especially in high-traffic environments, but does not affect traffic display on Garmin devices themselves or Garmin Pilot.
ForeFlight and Garmin are collaborating on a firmware update to resolve the issue, which is 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.”