Illegal practises
Just to make it crystal clear it is now illegal to not turn on an ATC transponder and use the altitude reporting mode ( if fitted ).
Shy torque the “cheap systems” comment was aimed at the character who suggested that the glider community having got the fast majority of the fleet fitted with FLARM wants them to change to something called pilot aware.
With powerflarm able to locate FLARM , mode S and ADS-B targets as well as warning of the proximity of mode C targets it at a very reasonable cost it seems to tick most of the boxes at an affordable price.
My new avionic fit will have powerflarm mainly to counter the threat from gliders and ADS-B out for conspicuously to the high end systems, I would hope that this backing up the Mk1 eyeball will help me avoid the vast majority of traffic.