Jeff, I know from your pictures that you did not do this question but... should the ADS-B transmit antenna have the 3" (or so) ground plane under it like most of us have done with the transponder antenna. I also am a bit concerned with what distance from the transponder antenna the ADS-B antenna should be. I don't have a lot of options with the distances that are needed from other equipment. I am trying to finish up the instalation in the next few days as I have everything in hand now for the FAA approved installation. Joe Horton
