sgfreeman
New Member
I have a D-180 and D-100 with the 180 being the master unit and a Garmin GTX-327 Transponder. The GTX-327 is not displaying altitude data from the Dynon. The settings are per the installation manuals and input from the Dynon forum. I am trying to figure out what the problem is.
The shielded Serial 2 pair from the EFIS has Pin 13 connected to Pin 19 on the GTX-327. Where should the lead from Pin 21 (TX GND) be connected? Right now, it is to my common ground block. Could I have a ground loop in the system? Any help is appreciated.
The shielded Serial 2 pair from the EFIS has Pin 13 connected to Pin 19 on the GTX-327. Where should the lead from Pin 21 (TX GND) be connected? Right now, it is to my common ground block. Could I have a ground loop in the system? Any help is appreciated.