antenna connectors with each one connected to a separate external antennas one antenna is tuned to frequency band a and the other frequency band b referring to fig4 a one way converter 40 translates the transmit signal from the radio to frequency band b through input switch 24 attenuator pad 32 and mixer 33 the signal is amplified by power amplifier 34 and passes through bandpass filter 36 tuned to frequency band b however in this version of converter 40 the receive frequency is not converted but rather it is just filtered 30 amplified 28 and sent through an optional attenuate through input switch 24 to transceiver radio 6 the complimentary version of this form of the converter module is shown in fig5 one way converter 41 converts the receive signal on frequency band b entering the converter on antenna connector 21 the transmit signal from transceiver radio 6 on frequency band b enters converter 41 at the radio connector 20 and is amplified 37 and filtered 38 without being converted to frequency band b these two implementations of one way conversion devices work as a complimentary pair to each other fig6 illustrates two one way converters 40 41 in a typical link one of the primary advantages of this arrangement is that at a base site multiple transmitters could be all transmitting on different radio channels in frequency band and all the reception on frequency group b this split band operation prevents in band signals from overloading local receivers since the receive signals are found in frequency band b not frequency band a where all the strong transmit signals are located 0028 fig7 illustrates an additional alternate form of the present invention where converter amplifier 80 has its dc.