Is this the sound of digital encryption?

[dragon48]

I'm never sure where to post these non HF ID requests. I'm picking this up on 935.4500 NFM.

I'm guessing this is what digital encryption sounds like on my analog radio. What is this:

https://soundcloud.com/user-437184959/9354500a


Thanks

 

[natedawg1604]

No, that is the sound of a digital voice protocol, I believe that's DMR. You need to put a RTL dongle on it with DSD+ and you'll find out exactly what it is. You would never hear the sound of encryption unless you first had a program that was decoding the protocol.

 

[CarolinasFeedNet]

Sounds like a control channel to me

Digital Modes Samples

 

[troymail]

Agree - sounds like a Motorola trunking control channel

 

[alex5774]

This site has audio samples of encryption and control channels for those interested: W2SJW - Radio Sounds

 

[troymail]

Possibly this system?

https://www.radioreference.com/apps/db/?sid=2520

 

[K5MPH]

Sounds like a control channel to me

Digital*Modes*Samples

I agree it sounds like a Data control channel......

 

[DaveNF2G]

[deleted]

 

[mmckenna]

Encryption in digital doesn't have a different sound. The 1's and 0's are just rearranged differently (generalized explanation). Your ears would not be able to tell the difference between a digital signal in the clear and one that's been encrypted.

And I agree, sounds like a control channel for a trunked system.

 

[mtindor]

Sounds like a Moto Type II 3600 baud CC.

Mike

 

[troymail]

Encryption in digital doesn't have a different sound. The 1's and 0's are just rearranged differently (generalized explanation). Your ears would not be able to tell the difference between a digital signal in the clear and one that's been encrypted.

True if you are an authorized recipient of the conversation but in this case, I think he was thinking more along the lines of "is this what encryption sounds like" for a scanner user.... In that situation, the audio just sounds like mumbo-jumbo noise.

 

[dlwtrunked]

Agree - sounds like a Motorola trunking control channel

Definitely. And of course every so often the control channel will change to another frequency in the system.