Microwave relay station having a common standby channel for sign

Details Microwave relay station having a common standby channel for sign Microwave relay station having a common standby channel for sign

1986-07-01

1989-10-31

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

455 8, 370 16, H04B 336, H04B 717

Patent

active

048782289

ABSTRACT:
A multichannel microwave relay station has first and second channels for respectively transmitting signals of different types of modulation, such as QAM and FM modulated signals. These different types of signal rely on a common standby transmission channel that is selectively capable of transmitting the different types of signals. The type of signal currently carried by the standby channel is automatically identified by a detector circuit, such as one that can automatically distinguish differences in the frequency spectrums of the different types of signals. A selecting circuit responds to the output of the detector circuit by selecting between first and second transmitting devices in the common channel, thereby dedicating it to the identified type of signal.

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