Info Ras Motorola

[iu4jic]

I need to add 10 receive-only radios to a Motorola DMR repeater bridge that uses Enhanced Privacy and RAS (I don't need to transmit, just listen). I know the Enhanced key, but we don't have the RAS code. By configuring the Motorola or Hytera radios that support ARC4 E.P., can I listen without setting up RAS, or will I not receive any signals? Thanks to anyone who can help me.

 

[KevinC]

By configuring the Motorola or Hytera radios that support ARC4 E.P., can I listen without setting up RAS,

No.

 

[iu4jic]

No.

Technical reason?

 

[tweiss3]

Technical reason?

RAS

 

[iu4jic]

Since I can decode the signal with SDR and DSD FME, I expected to be able to do it with a radio too

 

[tweiss3]

Have them carry around a Raspberry Pi and an SDR then.

 

[iu4jic]

It's much better to capture the audio with Windows and publish it so that it can be listened to with a smartphone on a dedicated site.

 

[lwvmobile]

Since I can decode the signal with SDR and DSD FME, I expected to be able to do it with a radio too

Software doesn't have to play by the same rules that radios are expected to.

 

[iu4jic]

Software doesn't have to play by the same rules that radios are expected to.

yes exactly, the only thing I expected is that having the Enhanced Privacy you could listen

 

[Echo4Thirty]

Since I can decode the signal with SDR and DSD FME, I expected to be able to do it with a radio too

This is an incorrect expectation. Software can be instructed to compensate for the extra RAS frames, radios will not ignore it. In other words, the radio is working as it was designed. No RAS, no listen.

 

[MTS2000des]

No RAS, no listen.

That part, why it's called Restricted Access to System, meaning UNAUTHORIZED subscribers cannot ACCESS (receive or transmit) the RAS enabled system!

 

[vselic]

If you have a key, your solution might be scanner capable of decrypting and ignoring ras

 

[KE4ZNR]

That part, why it's called Restricted Access to System, meaning UNAUTHORIZED subscribers cannot ACCESS (receive or transmit) the RAS enabled system!

 

[iu4jic]

Ok, thanks for the replies, now it's clearer to me. Having tried a friend's Baofeng, which allowed me to listen to the audio (obviously distorted by the Enhanced Privacy feature), I thought it was possible to insert the key into any Motorola or Hytera radio, but I realized it wouldn't work.