On Wednesday, March 20, 2019 at 8:43:50 AM UTC-5, Mike Schumann wrote:

The stupidest thing in the world is that PowerFlarm doesn't support ADS-R or TIS-B.

That was a mistake and as I understand it a long story. I hope they find a way to fix it, but the US is a tiny market. The only dumber mistake was the US deploying UAT instead of sunsetting Mode C transponders and adopting 1090ES exclusively like Europe. UAT causes innumerable problems in the airspace - as evidenced by this discussion. ADS-R is not a panacea either - you have to be within range of an ADS-B ground station.

We made a fork in the Stratux code to put out NMEA for glider instruments. It works but the mixing of all the different sources made de-duplicating targets quite challenging.

For goodness sake if you are going to put ADS-B in an aircraft that tows, put in 1090ES. There aren't going to be any UAT gliders out there and a tiny fraction of powered aircraft will have UAT - especially true if you fly any where near a commercial airport. If you're worried about the stray UAT target, get a dual-band receiver.

Thanks Urban for the clarification. Nature abhors a vacuum and then people tend to connect the dots in the most pathological way possible.

Andy Blackburn
PowerFLARM, Trig TT-22 with 1090ES Out