peter-h
Line Up and Wait
I have put two pics here
The avionics shop proposes that the rear GPS antenna is replaced with the TCAS antenna, and the front VHF (COM) antenna is replaced with a dual (Comant WAAS 2/3, $1000) antenna.
What concerns me is that the TCAS antenna will be slightly "behind" the roof curvature, for targets which are at your 12 o'clock.
The roof is composite but it has a ground plane in it, which runs all the way from the front edge to the back edge.
The underside is more straightforward, with a fairly flat bottom which is all-metal.
The avionics shop proposes that the rear GPS antenna is replaced with the TCAS antenna, and the front VHF (COM) antenna is replaced with a dual (Comant WAAS 2/3, $1000) antenna.
What concerns me is that the TCAS antenna will be slightly "behind" the roof curvature, for targets which are at your 12 o'clock.
The roof is composite but it has a ground plane in it, which runs all the way from the front edge to the back edge.
The underside is more straightforward, with a fairly flat bottom which is all-metal.