Free Flight Radar Altimeter TRA-3500

For sale is a Free Flight Radar Altimeter TRA-3500. Comes with the complete kit including a TRI-40 display.
Lightweight radio altimeter transceiver designed for transport category aircraft, helicopter, and seaplane operations
Used in conjunction with TRI-40 (14 Volt) Indicator and dual antenna system
“Anti-hover” capability prevents altitude wandering while hovering in helicopter
Provides precise AGL information from 2500 feet down to ground level
28 Volt power input
ARINC analog outputs allow integration with other on-board equipment such as flight director systems
Internal gear warning light aural and visual out
Eight fixed trip point outputs