Receiver Multicouplers, Matrix Switching, Antenna, DF : RF Distribution
RF Distribution for signal routing is often needed for both wideband surveillance systems and HF communication stations. The distribution system is used to connect the off-air output from a set of antennas to a number of receivers.
This may be because the antenna is a large and expensive, multiple beam array (as at HF) or because there are a number of antennas, which are different in function and frequency band, as at VHF/UHF
The diagram opposite shows the typical building blocks for an HF system with 48 inputs and 64 outputs
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