CI 292-1 VHF Communications Whip Antenna | 118–137 MHz, 50 Ω, BNC Female Connector 1658646-1 SAC 7-35 is an FAA

SAC 7-35 is an FAA TSO approved altitude encoder that provides RS-232 for newer generation transponders as well as standard Gilham Grey code for legacy transponders

In receiver operation

The X-naut cradle is powered by AA batteries

and finished on the inside with a new

CI 292-1 VHF Communications Whip Antenna | 118–137 MHz, 50 Ω, BNC Female Connector 1658646-1 SAC 7-35 is an FAAThe CI 292 1 antenna (EDMO# CI 292 1) is a three through hole mount style VHF communications bare whip antenna with a BNC port. This antenna is equivalent to the CI 291 VHF communications whip antenna except it features a straight tapered stainless steel radiator. It is designed with a narrow mounting pattern and is suitable for top mounting on light fixed wing single engine and multi engine aircraft and helicopters.