On Sunday, November 13, 2016 at 1:27:58 PM UTC-5, wrote:
On Sunday, November 13, 2016 at 8:45:05 AM UTC-8, George Haeh wrote:
What is the ICAO id set to in the PF and Trig?

If different you will get an alarm.

Thanks, George. Unfortunately, all the obvious stuff has been checked already through trial and error multiple times. The hex addresses are the same, multiple antenna placements have been tried, xpdr set correctly for Mode S, tried toggling OWNMODEC parameter, verified current xpdr and PF firmware versions, PF flarm reception works without xpdr. I just need to figure out whether this xpdr configuration error is worth pursuing further as lead.

Have you tried resetting the FLARM to factory settings, then doing the settings (flarmcfg.txt, display (if any), flarmnet)? See Luke's comment in https://groups.google.com/forum/#!searchin/rec.aviation.soaring/reset$20flarm$20luke%7Csort:relevance/rec.aviation.soaring/hYQ8WNFITbA/Hzx35EMpDQAJ ;

his suggestion:
quote
I've had issues with my FLARM since putting the in stealth mode at the 2015 15m Nationals at Harris Hill. After the contest the range dropped considerably. This morning completely blew away my config by loading a flarmcfg.txt that only contained a single line;

$PFLAR,99


After that I put in a fresh config file generated using the flarm website and my ranges came back to what I was seeing before Elmira.

FWIW
Luke Szczepaniak
unquote

I have had issues with a few of the club FLARMs and reset this way, and it sorted the problems (range, and inability to transmit). I will now reset all club FLARMs in the spring (northern hemisphere), and my own. It probably is worthwhile for you to try as well.

Dan