A squelch circuit is installed in a radio communications receiver to shut down the output when no speech is being received, in order to suppress interference noises. All airborne VHF/UHF communications receivers have them.
Oh, dude, it's like we're getting all technical now. So, three variables that define the purpose of interpersonal communications are sender, message, and receiver. The sender is the one sending the message, the message is the actual content being sent, and the receiver is the lucky person getting the message. It's like a game of communication hot potato, but with words.
To identify a sender and a receiver.
The main purpose was transatlantic communications.
All of the above
Both the sender and the receiver
Is to ensure that communications can be maintained if primary systems fail.
UART (Universal Asynchronous Receiver Transmitter)
Relating to a person: giver or donor.Relating to communications equipment: transmitter.
Senders and Receivers, understanding why some communications work and others don't.
TO license and regulate radio and tevelsion
The discriminator, and the ratio detector, perform the same function in an f.m. receiver as the detector does in an a.m. receiver, i.e. it recovers the modulation.