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Wilrobnson
 Post subject: MPT1327 SME needed...
PostPosted: Mon Jan 30, 2012 9:55 pm 
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Is there an expert on these systems around that I could break bread with and learn from? I'm soon headed to a place where that seems to be the rule, and wanna try my hand at tracking them.

PM me, thanks.

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Wilrobnson
PostPosted: Thu Feb 02, 2012 9:03 pm 
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No one?

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Rich
PostPosted: Thu Feb 02, 2012 9:20 pm 
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Check your messages...
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Wilrobnson
PostPosted: Sat Dec 15, 2012 12:08 pm 
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Location: Nancy's Bedroom... ooh aah
So, using Trunkview netted me a LOT of data, but no real clues where to go with it from here:

Quote:
13:12:11 ******* TrunkView :: MPT1327 Protocol Decoder ------ Saturday 2012-12-15 ********
ID: 4101 | Unregistered | Cch Frequency: 451.21250 MHz
*****************************************************************************************
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:22 - ALH | General single codeword | (000) Id: 0 Wt: 6 Rsvd: 0 M: 0 N: 0
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:22 - BCAST| Registration parameters | SYS: 4101 Spare: 0x1000
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:22 - ALH | General single codeword | (000) Id: 0 Wt: 6 Rsvd: 0 M: 0 N: 0
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:22 - BCAST| Call maintenance parameters | SYS: 4101 Per: No Ival: 0 Pon: No
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:22 - ALH | General single codeword | (000) Id: 0 Wt: 6 Rsvd: 0 M: 0 N: 10
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:22 - BCAST| Registration parameters | SYS: 4101 Spare: 0x1000
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:22 - ALH | General single codeword | (000) Id: 0 Wt: 6 Rsvd: 0 M: 0 N: 0
13:12:22 - CCSC | Control Channel System Codeword| SYS Id: 4101
13:12:23 - BCAST| Call maintenance parameters | SYS: 4101 Per: No Ival: 0 Pon: No
-----snip-----
13:14:49 - AHYC | Short data invitation message | (002) Org: 643 Tar: Short data message ident Slots: 3 Desc: 4
-----snip-----

Voice channels used:
Ch: 078 000.00000 MHz
Ch: 115 000.00000 MHz

Data channels used:
--

Adjacent sites:
ID: 4091 Ch: 211
ID: 40F1 Ch: 010
ID: 4221 Ch: 076
ID: 4231 Ch: 027
ID: 4239 Ch: 011

Announced control channels:
--

Withdrawn control channels:
--

Neighbour channels:
--

Idents logged:
(002) 643
(002) 652
(002) 653
(002) 668
(002) 729
(002) 798
(002) 6100
8185
8188
8189

Idents registered:
(002) 652
(002) 653
(002) 668

Registrations failed:
--

Voice targets called:
(002) 6100: 3 times

(002) 729 called: "(002) 6100"
(002) 798 called: "(002) 6100"


So now what?

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Rich
PostPosted: Sat Dec 15, 2012 1:02 pm 
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Wilrobnson wrote:
So now what?

Start mapping channel numbers to frequencies.
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maj0rrager
PostPosted: Fri Jan 11, 2013 1:14 pm 
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Location: Olympia, WA
This thread made me curious if we had any MPT1327 systems in the Olympia area. I'm hearing a control channel on 217.7425 PL:110.9. Trunkview is showing an ID of:51C1, with an adjacent site ID:5231 CH:074. The FCC license search didn't show anyone licensed on any of these frequencies. What setting are you using under "filters?" I'm still relatively new with this software. Setting it to "Show all Messages" makes it so there's too much data. "Show Minimal Messages" shows nothing, and "Set2" only shows "Vote now advice."

EDIT: Also, frequency 217.8425 PL110.9 ID:5119 is showing adjacent sites of:
ID:51A9 CH179
ID:51B1 CH173
ID:51D1 CH142
ID:5231 CH074 (Same as above)

So:
217.7425=ID:51C1
217.8425=ID:5119
217.5675=ID:5169

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nickcarr
PostPosted: Fri Jan 11, 2013 1:49 pm 
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Location: Not Gulfport
I'd bet that is PSE.
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maj0rrager
PostPosted: Fri Jan 11, 2013 2:27 pm 
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Location: Olympia, WA
nickcarr wrote:
I'd bet that is PSE.

Interesting. I'll definitely be keeping an eye on this. The system seems pretty dead so far but I've only had it running for about 2 hours. I'll continue to let it run and report back with anything I find.

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nickcarr
PostPosted: Fri Jan 11, 2013 2:38 pm 
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I'll scan that range later today and see if I can pick up anything. I would imagine their new system is in testing...
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maj0rrager
PostPosted: Fri Jan 11, 2013 2:47 pm 
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Location: Olympia, WA
nickcarr wrote:
I'll scan that range later today and see if I can pick up anything. I would imagine their new system is in testing...

If so then, exciting! I love mapping new systems, and this is even a new protocol (to me). I just got unitrunker running along side trunkview. Still nothing so far but we will see. I'll keep it running 24/7 through next week at least.

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