Rob, with one flight in the pattern only, the display was showing a big yellow ball in the EFIS which appeared to be ourself as the target. We are using the 5600 and the GTX 33 ES remote transponder and your ADSB box. Is there a config item I missed? I can't find any reference in your manual or the GTX 33 manual. On the ground, all targets display normal.

Thanksl.

Vic