Microwave Communication
It is possible to increase the maximum range of a radar equipment by

All of these
Narrowing the beam width and increasing the pulse duration
Lowering the pulse frequency
Raising the peak power of the transmitter

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Microwave Communication
In a pulsed radar set, the STC circuit is used to

Reduce interference from the effects of sea return
Increases receiver sensitivity for echoes from targets
Improve the target bearing resolution
Vary the pulse frequency in order to control the maximum target

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