I tried SD today with a Rosetta PAw, using GDL90. PAw connected to the audio panel, SD sound connected via tablet / Bluetooth to my headset (with a different voice).
The runway annunciation and airspace warnings were great. GPS traffic worked fine.
There was 'traffic' target in the tower, a PAw base station I think, but SD thought it was an aircraft and warned me of it while PAw ignored it.
I prefer to also receive the bearingless targets that PAw provides, there were a few Mode S and Mode C targets around.
At present I think I have to choose which input goes to the audio panel, SD from the tablet or PAw via phono cable.
I use the GDL90 protocol with PAw with 2 SDRs, so the weather can be received aloft. My weather tab shows the red dot. I just need to fly over SD HQ or Redhill to get an update. I'll let you know.
Help me integrate please. I WANT SD audio (including GPS threats) AND PAw bearingless, through 1 channel.