Is there a such thing as a encripted LTR system?

[Waldo325mvfd]

Hay, I was wondering if any one has any info on weather or not there is as such thing as a LTR ENC System.

And if there is, is that what Dahlgren has?
INFO on Dahlgren Data bursts are regular(10 Sec.) But the voice sounds like, I gues Aleans could describe it.

8)

 

[ECPD279]

There is an LTR system around here that uses voice inversion on one or two talkgroups. That sounds sort of "alien-like" and could be what you are hearing. Funny thing is, you can still tell they are speaking Farsi. Taxi company of course.

Encryption generally sounds like a bunch of crap that I have heard referred to as a "drowning fish". It bears absolutely no resemblance to a voice, just a bunch of beeping, buzzing etc...

 

[pro92b]

One taxi company on a local LTR system uses rolling code inversion on the base only; mobiles are in the clear. I've never heard any digital voice transmissions on the LTR systems here.

 

[DaveH]

Funny, there are a bunch of LTR systems around where I am,
and I've only heard it on a couple of groups, on the mobiles only,
which is the opposite of what you mention.

I wouldn't call it encryption though. It is analog scrambling,
which is different from real encryption applied to a digital
voice (or data) signal.

Dave

 

[INDY72]

There is an inversion used on a local LTR Passport system here for the Narcotics and SWAT ops for a police agency,.. when they use it,.. talk about irritating,.. you get that darned zzzzt every two seconds on top of the garbled gobbldeygook inversion ... :shock: