Decrypt P254/27/2023 Some agencies only have encryption on certain channels, for example Tac or Swat, while leaving Dispatch in the clear. Often the old channels are still in use for other purposes, as backup, tactical, or car-to car use. So now what do you do if your agency goes to encryption? Often the police will be the only ones to go encryption so you may still be able to listen to other agencies like Fire/EMS, Street and Utility departments and mutual aid channels, often on the same radio system as the encrypted agency. Unfortunately this privilege does not extend to scanner users. Occasionally police departments with encrypted systems will provide a system radio with basic talkgroups to media, wreckers, neighboring agencies and others that might have a legitimate need to monitor them. The only way possible to hear an encrypted communication is with a properly programmed System Radio programmed with the encryption keys. Contrary to the occasional belief, the “Extreme Update” etc. There is no way to decrypt a modern encrypted communication with a scanner, even with any of the various updates. The encryption keys are code numbers that are set up to assure that only permitted radios may hear and participate in a communication. Encryption is the act of scrambling a signal to make it unmonitorable to radios not equipped with the proper technology and (most importantly) the proper key. Encryption is a four-letter word among scanner enthusiasts.
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