Skytrax 200 Receiver failure

I had a Skytrax 100b in my plane and it failed. It began to fail intermittently so I took the plane to the dealer. The dealer installed the upgrade to make the unit a Skytrax 200. The unit would work on start up but would fail after a few minutes and give a message of "Maintenance Required". After performing some diagnostics it was having a receiver failure. The dealer sent it in to Avidyne and Avidyne did an exchange, sending back a new Skytrax 200. The dealer installed and configured the new unit and it worked initially while on the ground. After a few minutes the unit failed, again showing the message "Maintenance Required". The dealer ran diagnostics on his laptop and it showed that the receiver had failed.

swyloge wrote: I had a Skytrax 100b in my plane and it failed. It began to fail intermittently so I took the plane to the dealer. The dealer installed the upgrade to make the unit a Skytrax 200. The unit would work on start up but would fail after a few minutes and give a message of "Maintenance Required". After performing some diagnostics it was having a receiver failure. The dealer sent it in to Avidyne and Avidyne did an exchange, sending back a new Skytrax 200. The dealer installed and configured the new unit and it worked initially while on the ground. After a few minutes the unit failed, again showing the message "Maintenance Required". The dealer ran diagnostics on his laptop and it showed that the receiver had failed. This new unit has been shipped back to Avidyne. I don't know what I will be getting back. It seems that these units do not work. Do you have any further information regarding these units?

Not sure about what is causing the continuous "Maint Required" message. I would think that Avidyne Tech Support would be able to offer ideas and solutions. As far as the ownship being continuously displayed; I believe the SkyTrax200 uses the aircraft's 6 digit hex ICAO code (Mode S code) found on FAA aircraft registration / N-number lookup website to suppress showing the aircraft's ownship. You may be able to verify that your transponder is set to send the correct ICAO code; however, it will probably take an Avidyne dealer to connect to your SkyTrax200 through its USB-C port to verify that the SkyTrax200 also has the correct ICAO code set for your aircraft. 

Edited by dmtidler - 23 Sep 2022 at 7:25pm

The "Maint Required" message on the IFD is driven directly from a corresponding indication in the SkyTrax.   The SkyTrax triggers that indication based on a number of conditions, including:

Edited by AviSteve - 26 May 2023 at 9:25am

I had the problem with my Skytrax 200. Returned it to Avidyne and they exchanged it. The new unit was installed and it seemed to work ok but gave out after a couple hours of use with the same issues. The dealer troubleshooted with Avidyne and they concluded the original wiring for the Skytrax 100 was not compatible with the Skytrax 200 with the 10.3.2.1 Ifd540 software upgrade so they had to change the pinning of one of the wires from the Skytrax to the IFD 540. I made a couple of flights some the repair and haven’t experienced any problems.