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Many law enforcement radio systems are already encrypted and that is growing with time budgets permitting. Some are partially encrypted like tactical and some
by LinuxBender 4y ago
Many law enforcement radio systems are already encrypted and that is growing with time budgets permitting. Some are partially encrypted like tactical and some use full encryption. This varies heavily by state and county but it is really by budget. The tactical channels in my area are encrypted and I am in the middle of nowhere.
Here [1] is one of the laws on radio encryption. More discussion here related to civilian use. [2]
Laws aside I am sure there are folks here that could make an encrypted SDR for use as a private intercom if they do not already exist however they would not be able to decrypt law enforcement without their private keys unless the vendors mistakenly left them in a public git repo.
[1] - https://www.law.cornell.edu/cfr/text/47/90.553 https://www.law.cornell.edu/cfr/text/47/90.553
[2] - https://woofthebeatenpath.com/are-there-encrypted-walkie-talkies-for-outdoors/ https://woofthebeatenpath.com/are-there-encrypted-walkie-tal...
- LinuxBender 4y agoHere [1] is someone playing with voice scrambling not so much related but may be interesting and here [2] is the P25 project information. Decoding unencrytped P25 Phase 2 using an SDR [3] And finally, someone that agrees with you. [4] [1] - https://www.youtube.com/watch?v=yGLRK6D6rgo https://www.youtube.com/watch?v=yGLRK6D6rgo [video] [2] - https://en.wikipedia.org/wiki/Project_25 https://en.wikipedia.org/wiki/Project_25 [3] - https://www.rtl-sdr.com/tutorial-on-setting-up-op25-for-p25-phase-2-digital-voice-decoding/ https://www.rtl-sdr.com/tutorial-on-setting-up-op25-for-p25-... [4] - https://www.youtube.com/watch?v=NhJQkJxRWf8 https://www.youtube.com/watch?v=NhJQkJxRWf8 [video]