1.

In a four channel system, all four signals transmitted contain information.(a) True(b) FalseThe question was asked by my school teacher while I was bunking the class.My question is from Time Division Multiplexing topic in division Radio Transmitters, Communication Receivers, Multiplexing and Demultiplexing of Avionics

Answer»

The correct option is (b) False

To explain I would say: After clock pulses of the proper frequency have been obtained, it is necessary to synchronize the multiplexed channels. This is usually done with a special synchronizing (sync) pulse applied to one of the input channels at the transmitter. In the four-channel system discussed previously, only three ACTUAL signals are transmitted. The fourth channel is used to transmit a special pulse WHOSE CHARACTERISTICS are unique in some way so that it can be EASILY RECOGNIZED.



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