[Scan-DC] LTR Trunking Help; please

[Eric C. Carlson]

I agree that it's probably NXDN.

-Eric

On Mon, Sep 15, 2014 at 4:24 AM, David Schoenberger
<davidschoenberger at gmail.com> wrote:
> 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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