Standardised carrier-wave supply for microwave relay station - has programmable frequency divider and comparator but no mixer (HU 28.7.80)

摘要

The carrier wave supply has its microwave oscillator (3), its programmable frequency divider (4)(coupled to the oscillator) and its phase or frequency comparator (5) forming a carrier wave stage (1) that forms the supply with a comparator unit (2). The microwave oscillator's first output (19) is connected to the carrier stage's output (29) and its second output (20) is connected to the input of the divider. The frequency comparator (5) compares the output of the divider with a reference received at the reference input (31) of the carrier stage and produces a control signal for applying to the control input (21) of the microwave oscillator.