Originally Posted by
Maoraigh1
What if any, advantage would I get if I added a Trig TN70 to my Trig TN21 Mode S transponder, taking advantage of CAA grant?
I'm considering doing something, but not sure what.
Adding a TN72 would give you ADSB to SIL=1 so that eventually ATC will be able to see you by ADSB. Currently though in the UK there is only Aberdeen ATC that can interogate ADSB to SIL=1. Not a lot of advantage at the moment really outputting to SIL=1 until ADSB is adopted by all ATC units as far as I can see.
If you are currently ouputting ADSB by ES Transponder connected to an uncertified GPS you are transmitting to SIL=0 which is fine for other GA aircraft to see you.
SE2 incidently outputs ADSB to SIL=1 in the UK