GTX20 – FM Transmitter Connections
Pin Function
1 SCA/RDS input
….9 Ground
2 Ground
….10 Left input hot
3 Pilot out (15V squarewave at 19kHz)
….11 Left input cold
4 Ground
….12 Left input ground
5 Remote shutdown (apply 5-20Vdc to shutdown)
….13 Right input hot
6 VSWR fault (active-on open-collector output, rated a 30V
….14 Right input cold
7 Overtemp alarm (+15V active-high output)
….15 Right input ground
8 Out of lock (+15V active-high output)