do they still make a descrambler for scanners anymore

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W6KRU

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can it be a analog but have digital encryption

No, but it can be conventional with digital encryption. I'm just tossing that out there because I'm thinking that might be what you meant since you were talking about a frequency that sounded like it might be conventional earlier. The Union Co SO dispatch does have an emission designator for analog though.
 
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gewecke

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Would one of these work if I hooked it up to my computer speakers? I listen to a feed that uses the voice inversion from time to time.

Tim

I would think it will, as long as it's analog voice inversion. :)
You may even want to give ramsey techs a call before ordering one?
Years ago I had one called a DNE-12 from Don Noble Electronics. I wish I would have kept it now.

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SCPD

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I still own both the base and portable versions of the Don Noble descramblers. Not much use for them anymore but they were worth every penny and they are keepers.
 

gewecke

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I still own both the base and portable versions of the Don Noble descramblers. Not much use for them anymore but they were worth every penny and they are keepers.

That's awsome! I don't I've ever seen the portable version, but I did remount a 12 in a small flat project box for a guy once.
They would still be usable for listening to GMRS/FRS and taxi services maybe!

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wb0wao

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Voice Inversion is 1970's technology that was pretty much the only way to go unless you had VERY deep pockets back then. I was a deputy from '78 - 91, and IIRC, the device was an outboard box that the mic and speaker hooked up to and then the box was connected to the control head. Flip a switch and you were "secure".

The SO looked at getting them, and the salesman was really pushing the sales pitch that no one could monitor the radio traffic. He set up a demo where he had a unit and hooked it up to one of the patrol cars temporarially so he could show us how great it was. I brought in my xtal scanner I had at home and one of those DNE descramblers I had hooked up to my Regency programmable. Of course it decoded the traffic and that pretty much killed his sale.

AFAIK, there may be a few agencies left using them (probably small, rural departments), but they are pretty much gone in the public service area. I know there is a lot of bootleg activity using the PRC imports that have the "scrambler" function on the MURS frequencies and other itinerant channels.
 
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