Thought we would try this question with such a large audience...
The equipment:
Avidyne IFD-540
Dynon SV-XPNDR-261
Dynon SV-ADSB-472
Dynon SV-HDX-1100/B
Dynon SV-GPS-250A
In the attached picture, you can see the message "NO ADS-B OUT: GPS LOST"
We need the GPS signal from the IFD-540 WAAS...