Icom IC-R30 Advanced Manual

Also see for IC-R30: Setup instructions Service manual Basic Manual Advanced manual

7 OTHER FUNCTIONS7-16■ Duplex operationThe Duplex operation shifts the transmit frequency up or down from the receivefrequency by an offset. You can receive a communication that uses different frequenciesfor transmitting and receiving (Duplex), by setting the frequency offset and shift direction.While monitoring, the displayed frequency automatically changes to the transceivertransmit frequency (Repeater input frequency).When Duplex direction is set to “DUP+,” the transmit frequency shifts down from thereceive frequency by the offset amount.When Duplex direction is set to “DUP–,” the transmit frequency shifts down from thereceive frequency by the offset amount.RepeaterRX: 442.540 MHzTX: 447.540 MHzStation ARX: 447.540 MHzTX: 442.540 MHzStation BRX: 447.540 MHzTX: 442.540 MHzRepeater access imageExample: Receiving a 430 MHz band repeater signalD Frequency offsetThe receive frequency shifts according to the set frequency offset and direction, whileholding down [SQL]. You can set the frequency offset in the QUICK menu. (p. 7-17)Reverse the RX/TX frequencies and titles. The arrows FROM the transceivers to therepeater are transceiver TX and the arrows FROM the repeater to the transceiver aretransceiver RX.