Single side band multiplex signal radio relay

摘要

A radio relay for transmitting single side band (SSB) multiplex signals is disclosed. The receiving (or transmitting) frequencies on the up link and the down link at a repeater station are made different from each other for the purpose of reducing interference crosstalk between the transmission signals. More particularly, a shift frequency corresponding to the difference between the receiving frequency and the transmitting frequency on the up link or the down link at a repeater station A is selected in sequence from any one of the reference shift frequency fc and a plurality of shift frequencies deviated from the reference shift frequency according to the relation fc + ni x DELTA f, where ni is a positive or negative integers and DELTA f is a radix deviation frequency.