How do encrypted radios and police scanners work?

Date:2023-01-08
Encrypted radios work by encoding the signal before it is transmitted. The receiver must then decode the signal in order to listen to the audio. The encryption key needs to be known by both the transmitter and the receiver in order for the communication to be understood. Police scanners also use a type of encryption that only they are allowed to access. This is usually done through a radio system that requires a special radio frequency or through digital encryption of the radio transmission itself. Depending on the type of encryption used, the receiving radio may be able to decode the transmission and listen in on the police communication.
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