Please remember that for ADS-R and TIS-B to work reliably your glider needs to be ADS-B Out equipped. That can be 2020 Compliant or TABS (but not say any old GPS providing position data to ADS-B Out with SIL=0) this allows the glider to be it a client of the ADS-R and TIS-B ground based services. You also need to configure the ADS-B Out to describe that the glider/PowerFLARM can receive ADS-B data on 1090ES. Since we are talking almost excessively Trig transponders that means that on the Trig transponder ADS-B setup menu you set "1090ES In" to YES and "UAT In" to NO. (that's the way I've been encouraging folks to set this up anyhow... waiting for this day to come :-)).

If your glider has ADS-B Out today and PowerFLARM this is something I would encourage you to just install over winter. If you fly near dense GA traffic (which may be more likely to be UAT Out or only transponder equipped) then this may be justification for upgrading to ADS-B Out to enable your glider to be a ADS-R and TIS-B client.... and also to ensure that hopefully much of that traffic can also see you.

This update has been a significant amount of work from FLARM, to serve a relatively small customer base in the USA. And it's not trivial to implement, thanks Jerome and Urban at Flarm for doing the hard work here. Also thanks to folks in the USA who have test flow this over the last few months.

Do you have ADS-R and TIS-B ADS-B ground service coverage near your gliderport? Or other busy traffic areas? You can start by lookin at the FAA ADS-B coverage maps in Google Earth: https://www.faa.gov/nextgen/equipadsb/research/airspace (the radar coverage info there will also give you an idea if you will see traffic via SSR/TIS-B).

On Wednesday, January 13, 2021 at 9:34:59 AM UTC-8, wrote:
Hi All - FLARM has announced release of firmware supporting ADS-R and
TIS-B reception. This feature is included in new firmware for Core
Fusion. For original PowerFLARM core and portable, this requires a
license available he
https://flarm.com/shop/ads-r-and-tis-b-reception-adsr/

Firmware is available he
https://flarm.com/support/firmware-u...nload-firmware.

Additional info about this feature he
https://flarm.com/products/product-add-ons/ads-r-tis-b.

Enjoy!
Best Regards, Dave