Is your trigg adsb out ? That is the question. To be adsb out it must have GPS input. Simple way to find out is, as i have said before, disable the transmit function on the SkyEcho2, go flying, if your traffic screen is not showing your aircraft all the time then your trigg is not adsb out.
When I am flying the RV6 with the SkyEcho2 only used for IN, ie transmit disabled, I see my tailbeaconX adsb out transponder all the time. It is a brilliant system because it continuously shows both the out and in is working correctly.