VHF的基本知识(3)

Radio Transmitter Line Interface a) Without signal source -48V Mn Mn Mp Mp Tx Tx Interface Connector c) Phantom signaling -48V Mn Mp Tx Tx Interface Connector Radio Receiver Line Interface a) Against signal ground -48V En Ep E SG Rx Rx Interface Connector c) Phantom signaling -48V En Ep Rx Rx Interface Connector

PTT b) Against earth ground -48V Mn M Mp Tx Tx Interface Connector d) With signal source -48V Mn Mp M Tx Tx Interface Connector

b) Against earth ground SQ -48V En Ep E Rx Rx Interface Connector d) External signal source -48V En En Ep Ep Rx Rx Interface Connector

功能 Rx1 Rx2 Tx1 Tx2 PTT 地 SQ +28V电源

针脚 1 17 2 6 21 14、15、16 22、25 19、20 备注

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