On Tuesday, January 8, 2013 7:45:28 AM UTC-5, kirk.stant wrote:
If your concern is being seen by airliners with TCAS, wouldn't' a position on top of the fuselage be at least as good or better during cruise?
While circling, either would be about the same.

Kirk
66


Then what about aircraft climbing from below? Unless we want to install two antennas, one top, one bottom, we have to compromise. TCAS equipped aircraft have top and bottom antennas, but the vast majority of GA aircraft with transponders have the antenna mounted on the bottom.

MK