Hi Lee,
thanks, both problems solved. SD Android runs on PAW USB GPS which is good as the Bluetooth GPS does not like some of the other electronics and it is less clutter.
By raising the height limit I have some ADSB targets which make sense from where I am. It is worth noting that SD does NOT retain the 40000ft setting on re boot.
The two T1 Hawks that came by BELOW the house must not have ADSB......................but then they have no collision avoidance kit fitted and neither did the Sea King. That puts your amazing efforts in perspective.
Thanks
Doug