[TrunkCom] Trunk-tracking Help

Tue, 19 Mar 2002 16:33:58 -0500 (EST)

You might also try E1P3 or E1P8 as a fleet map.  Those are standard type I
fleet maps with E1P3 used for public safety, and E1P8 used by SMR
users.  Also, you might want to try going to www.trunkedradio.net, and
looking for that facility in the state of California.  I think I remember
seeing it there.  Neither of your scanners will do LTR, and the BC245 will
do EDACS, and the 895 with software will do EDACS, but your system
 doesn't like a Motorola type I system.

On Tue, 19 Mar 2002 [email protected] wrote:

> You're right, S14 is a very unusual fleet size, especially for a prison
> with probably no more than 50 or 100 radios.
> 
> >From what you've said, I would have to guess it is a Type I system. The ids
> you've given point to a Type I. My guess is that they have set up some sort
> of patch between multiple subfleets. Even though you're seeing
> conversations between ids 34135 and 37217, as well as between 34267 and
> 38374, what is probably happening is that one subfleet is in the
> 34135-34267 range, and the other subfleet is in the 37217-38374 range.
> 
> I would proceed on this basis, and start trying lower fleet sizes. I would
> continue to monitor in E2 mode, and start recording every id. You should
> start to notice them "clustered" around certain values. That should give
> some clues on fleet size.
> 
> You're on the right track Scott, but I think this patch or whatever has
> thrown you for a loop. Continue on the basis that there are two subfleets
> there, and you should be able to figure it out.
> 
> Rob
> 
> _________________________________________________________
> Message: 3
> Date: Tue, 19 Mar 2002 03:42:45 -0800
> To: [email protected]
> From: Scott Baldwin <[email protected]>
> Subject: [TrunkCom] Trunk-tracking Help
> 
> Hello to the list.
> 
> I'm trying to set up my BC-245 and BC-895 to track the trunking system at
> the Vacaville CMF Prison site.  Their frequencies are 857-860.2625.
> 
> I started off in E2 mode, and noticed the ID's changed between radio
> users.  So I assume it to be a Type-1 system.  Setting it in E1 Mode, I
> chose S-14 as my size.  Even though this is an unusual size, I chose it
> because I had caught traffic with an ID of 37217 and the reply came back on
> 
> 34135.
> 
> Using the method of lowest ID and highest ID, the difference is 3082,
> meaning at least THAT many users used block 4.  Since S-13 has a max of
> 2048 users, and S-14 is the next with 4096 users, for this reason I chose
> S-14.
> 
> Now here's my problem.  I was monitoring the other day and a call came out
> with an ID of 000-9 and a reply came back on 000-8.  It was the same
> conversation.  My BC-245 was still set on E2, and I noted ID 38374 and
> 34267, respectively.  The problem as you can see is that the number of IDS
> (difference between the two) is 4107.  This exceeds the max of 4096 as used
> 
> for a Type 1.
> 
> Does anyone know what kind of system this is, if it's not Type-1 or
> Type-2?  I have tried Edacs and LTR, but I either don't know how to set
> these systems up in my scanner, or they're not that either, as I've tried
> programming them in, but they don't track at all.  It's as if they don't
> see the control channel.
> 
> Thanks in advance.
> Scott
> N6UUH
> ---
> Cambion Chadeauwaulker
> [email protected]
> ICQ# 1023236
> Northern California, USA
> 
> http://cambion7.thesociety.net/
> http://photos.yahoo.com/cambion7
> 
> "In space, no one can hear you cha cha cha!" - Confidence
> 
> 
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