On Saturday, November 30, 2019 at 8:26:42 AM UTC-6, Eric Greenwell wrote:
Darryl Ramm wrote on 11/29/2019 10:36 PM:
Again if you are installing TABS just set the transponder squat switch to "None" and use manual ON/ALT switching on the transponder.

I might forget to switch it correctly. Would using the "gear is down" switch to
change between ground/airborne be a sensible choice? The pattern (and the first
500'-1000' after the takeoff) would be flown showing the glider was on the ground,
of course, but that might be better than having the whole flight showing as on the
ground.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1

If you use a squat switch with a Trig transponder, I believe that also puts the Transponder into GRND mode, so it wouldn't be responding to interrogations. The one place you do want ADS-B OUT and your transponder operating is in the pattern. That's where half of the midairs occur. Turning off ADS-S B OUT or your transponder as soon as you lower the gear is a really bad idea.