DCS Encryption mystery solved.

[nodnarb72]

Using the Retevis Murs walkie talkie, with columns are included for regular tone ,DCS, including inverted, Scrambling, and DCS Encryption... I tested regular DCS on my scanner. It shows the DCS like expected. However, when it is encrypted ... It litterally hides the DCS from showing up on the scanner. It does what implicated. Hides DCS from public. It does not let you select an encryption setting other than what comes with the radio.

 

[Reconrider]

Link the radio. I’ve never heard of a radio “hiding” the privacy tone.

 

[nodnarb72]

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The Chinese radios are very "iffy" on specs and can have goofy software. Lots of opinions. I know what I experiencing here. Pretty cool that I can not see the DCS code. I need to make a youtube video displaying what I am seeing.

 

[nodnarb72]

 

[Giddyuptd]

Kind of pointless when one could manually go one by one to find the pl and dpl.

Are you sure it isn't just inverting the dpl?

 

[nodnarb72]

I am not sure what DPL is, but there is an invert setting and I tested too. I just shows a random DCS on my scanner when I invert. The best I can figure is that this is just another DCS off the grid from the standard ones. They most likely came up with codes for their radios and called encryption. I doubt they spend much time or money getting super high tech.

 

[kruser]

I bet they are using an invalid (not used) DCS code for this trick.

Put it on an analyzer and you could probably see the invalid DCS data in with the RF audio.

 

[nodnarb72]

My posts are not being shared publicly now. I can not respond to anything. I guess I got banned? Well this is my last time posting here then. Not sure what I did so offensive to the moderators.

 

[AK9R]

My posts are not being shared publicly now.

Posts from new forum members are often moderated until their post count reaches a level that we don't make public. At the time you made the quoted post, your post count was 2. Now, it's 5.

 

[nodnarb72]

I've paid for membership twice which means I've been here at least a year so I didn't consider myself a new member sorry.

 

[KevinC]

I've paid for membership twice which means I've been here at least a year so I didn't consider myself a new member sorry.

Moderation is based on number of posts, not length of membership or status of premium membership.

 

[nodnarb72]

Thank you for clarification

 

[AM909]

All it is is their own version of DCS (DPL) that isn't decoded by a standard DCS decoder (like maybe it sends 5xxx instead of 4xxx, uses a different bit-rate, or a different ECC). That doesn't stop anyone from hearing transmissions made with it, as you saw with the Uniden scanner listening in carrier-squelch mode. I suppose it adds the minor inconvenience that listeners with other types of radio have to listen in carrier-squelch mode and so have to hear all users of the channel, not just you. As mentioned, if they were really intent on being able to hear just you for some reason, they could get a radio with the same feature and step through the codes to find it (like we did in the old days), or probably pretty easily reverse-engineer the scheme. Sounds like a "marketing gimmick" to let them put "encryption" in the description.