[Scan-DC] LTR Trunking Help; please

[David Schoenberger]

The license has the emission designator for NXDN; I suspect this is what you're hearing. 

I believe NXDN can run concurrently with LTR, so that's probably what's going on with this system. 

Dave

> On Sep 15, 2014, at 1:05 AM, "Alan Henney" <alan at henney.com> wrote:
> 
> 
> This past summer I had been monitoring this LTR system:
> 
> http://www.radioreference.com/apps/db/?sid=3372
> 
> It covers a large area from Delaware to the Maryland mid-eastern shore.
> 
> The license actually includes these channels:
> 
> 460.850
> 464.850
> 464.125
> 452.7375
> 462.53125
> 
> 463.825 *
> 463.300 *
> 451.7875 *
> 452.2375 *
> 464.5875 *
> 
> * This year these five channels are carrying data (no voice).  The signal fluctuates but I receive frequent close-call hits on my Uniden scanner.  And when I get one hit, the next transmission will typically move to one of the other five channels.  It is almost as if this were a digital voice system because of the system usage and the fact it appears to be local mobiles.
> 
> Here is what it sounds like on the mobile input side:
> 
> http://henney.com/temp/468300MHz.wav
> 
> I thought maybe DMR, but the output in this case sounds similar to the input which does not sound like DMR to me.
> 
> Maybe Eric Carlson can tell me what I’ve been hearing?
> 
> Any ideas?
> 
> Thanks,
> Alan
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