From what I can tell they have switched over to digital but I`m still able to hear them. I did get told we wouldn`t be able to but I still can so it`s all good.
And the new system also has another subsystem that includes touch screens in the cars, GPS tracking, map displays and other info. It runs on around 800 Mhz or something.
So, if Slipknot and his uber hacking buddy managed to crack 256 AES, then we're in trouble.
Analog speech encryption can be as simple as speech inversion, where the human voice is "inverted", resulting in the radio traffic sounding like a popular Disney character, or quite complex, with the voice split at about 1500 kHz, inverted at both ends, with the center carrier swept randomly up and down several kHz from the center transmit frequency.
Analog speech encryption can be as simple as speech inversion, where the human voice is "inverted", resulting in the radio traffic sounding like a popular Disney character, or quite complex, with the voice split at about 1500 kHz, inverted at both ends, with the center carrier swept randomly up and down several kHz from the center transmit frequency.
You forgot the most important point when you took that quote off this website.
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Best be aware of copyright and attributing sources when you cut and paste.
Just an update. Looks like the digital will run parallel with the analouge til the end of the year - not sure on encryption but they may start encrypting some channels through-out the year for full encryption by the end of the year.
AV201 wrote:
VKI: AV201, we can go digital now, just no one will answer you
They'll know that nobody can listen in after they've gone digital when traffic cars arrive at the scene of an accident one day... and have to phone for a tow truck
Analog speech encryption can be as simple as speech inversion, where the human voice is "inverted", resulting in the radio traffic sounding like a popular Disney character, or quite complex, with the voice split at about 1500 kHz, inverted at both ends, with the center carrier swept randomly up and down several kHz from the center transmit frequency.
