ABSTRACT
The actual receiver frequencies are generally beyond the control of the design team, being dictated, controlled, and even licensed by various domestic or foreign government agencies, or by the customer. An electromagnetic signal picked up by an antenna is fed into a receiver. The ideal receiver rejects all unwanted noise including other signals. The receiver should match the dynamic range of the desired signal at the receiver input to the dynamic range of the signal processor. The bottom end of the dynamic range is set by the lowest signal level that can reasonably be expected at the receiver input and by the power level of the smallest acceptably discernible signal as determined at the input to the signal processor. However, the frequency can be selected to use atmospheric absorption to provide isolation between ground signals and the satellite cross links. The design of the local oscillator chain is tied to the receiver components by frequency, power level, and phase noise.
