Encrypted Frequencies not on ACMA database
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Jabbo28
- Registered User
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- Joined: Thu Mar 29, 2018 8:09 am
Encrypted Frequencies not on ACMA database
In Dalby QLD there is encrypted data on the frequencies of 471.975, 475.975 and 479.975. I have run a search of the ACMA database but to no avail. What else can I find out about these?
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MattSR
- Registered User
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- Joined: Sun Feb 03, 2013 7:34 pm
Re: Encrypted Frequencies not on ACMA database
Question - how do you know it’s encrypted?
What modulation scheme and framing does it use, and what encryption algorithms are in use?
What modulation scheme and framing does it use, and what encryption algorithms are in use?
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comport1
- Registered User
- Posts: 127
- Joined: Sun Feb 15, 2015 12:55 pm
- Location: Central Queensland
Re: Encrypted Frequencies not on ACMA database
It's not "Encryption" that you are hearing, it's most likely Data / Telemetry that you're hearing on those frequencies. Those frequencies sound familiar on my travels through Dalby & other parts of Queensland. Could also be DMR (Mototrbo) another form of Digital Voice, but most likely Data / Telemetry.
Also, you mention, not on ACMA Database? Well i know of plenty of Mines running Data / Telemetry modems/applications on Low Power on these or near these UHF Frequencies often between 470MHz to 480MHz, and are NOT Licensed, or are licensed in other areas.
Hopefully that clears it up for you.
Also, you mention, not on ACMA Database? Well i know of plenty of Mines running Data / Telemetry modems/applications on Low Power on these or near these UHF Frequencies often between 470MHz to 480MHz, and are NOT Licensed, or are licensed in other areas.
Hopefully that clears it up for you.
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Comport1
Comport1