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-   -   Advice on ADSB transponder (https://vansairforce.net/community/showthread.php?t=143982)

BobTurner 11-24-2016 11:34 AM

To answer your question: the HX sends RS232 signals to a small adaptor mounted directly on the remote Trig. The adaptor changes the format to Trig's format. It's all software, no connection to the squat input.

Canadian_JOY 11-24-2016 12:00 PM

Thanks for confirming the TT22 is capable of reading some sort of digitally-encoded "I'm not flying anymore" message. I've reached out to Trig support to see if I can get a better understanding of why the transponder doesn't seem able to make this determination accurately using the data provided in the ADSB+ data stream from the GPS navigator, or if the functionality you saw prior to your latest HX software update was an artifact of the transponder being controlled by the HX.

BobTurner 11-24-2016 01:37 PM

Quote:

Originally Posted by Canadian_JOY (Post 1129273)
Thanks for confirming the TT22 is capable of reading some sort of digitally-encoded "I'm not flying anymore" message. I've reached out to Trig support to see if I can get a better understanding of why the transponder doesn't seem able to make this determination accurately using the data provided in the ADSB+ data stream from the GPS navigator, or if the functionality you saw prior to your latest HX software update was an artifact of the transponder being controlled by the HX.

When the software was written there was no 'air on ground' spec,and GRT put in an extra 30 second delay 'just to be sure'. Then the FAA changed the rules (again). So the software change is to just delete the extra 30 second delay. Yes, in my set up the air or ground status is sent to the 22 by the HX.


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