On Sep 13, 2:08*pm, Wojciech Scigala wrote:
U¿ytkownik Darryl Ramm napisa³:

However the
Trig TT-21 is a game changer. You get Mode S/1090ES ADS-B out
capabilities for future possible use and more immediately, it is more
compact, easier to install and uses less power than other options.

Could you confirm that Trig will not work in A/C-only radar environment?

--
Wojtu¶.net

It is a Mode S transponder. It is compatible with Mode A/C SSR. Think
of Mode S as an enhancement to Mode A/C. It's not an alternate choice.
It really makes no sense to ask if these Mode S transponders support
mode A/C.

Darryl