Arrangement for suppressing the transmission frequency of a radio-frequency transmitter at the input of an adjacent receiver

摘要

To suppress the transmission frequency of a radio-frequency transmitter operated in the vicinity of a receiver, a band-stop filter is disposed between the receive antenna and the receiver, the stop frequency of which filter can be tuned via a control voltage generated via a decoupling arm which is connected to the receive antenna and which comprises an amplitude limiter which in each case supplies only the radio-frequency signal with the highest level at the output and a frequency discriminator connected downstream.