Worcester P25 (CoMIRS site 36) Daily Talkgroup log

Discussion forum for scanning Central Massachusetts, including the City of Worcester and Worcester County
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sawyer100
Posts: 677
Joined: 02 Nov 2005 22:39
Location: Western Worcester Cnty, MA

Worcester P25 (CoMIRS site 36) Daily Talkgroup log

Post by sawyer100 »

I decided to spend the past 10 days or so specifically monitoring the Worcester P25 digital trunked system (Worcester frequencies only) and log what talks on a "daily basis".

control channel/frequency: 858.1375. same all 10 days, never changed.

AIRPORT:
51 Worc Airport Fire
85 F-PTL-3 Worc Airport Police (police sign on & off w/ dispatcher when on/off duty)
185 Worc Airport Ops

DPW:
4515 DPW Garage
4517 DPW Sewer
4519 DPW Street
4521 DPW Water
4527 DPW Sanitation
4529 DPW Parking
4537 DPW Forestry

EMS:
4481 EMS Citywide


FIRE:
2507 F-Dist 7 Orange simulcast
2509 F-Dist 8 simulcast
4433 Fire Ch01 Admin
4435 Fire Ch02 Ops A (north)
4437 Fire Ch03 Ops B (south)
4439 Fire Ch04 Ops C
4441 Fire Ch05 Ops D
4443 Fire Ch06 Dispatch
4445 Fire Ch10 TAC10 FG
4447 Fire Ch11 TAC11 training
4479 Fire Station Paging {ENC}

MISC - City of Worcester:
4361 (brand new, started hearing last week for 1st time) {ENC]
4477 Heard 1st time 2/19/20, heard once this week.
4583 911 EMERGENCY
4585 FIRE / EMS / POLICE

POLICE:
4369 Police Ch01 Dispatch East
4371 Police Ch02 Dispatch West
4373 Police Ch03 CJIS/Records {ENC}
4375 Police Ch04 Traffic Enforcement {ENC}
4383 Police Ch?? ????? {ENC}
4385 Police Ch?? ????? {ENC}
4387 Police Ch?? ????? {ENC}
4389 Police Ch?? ????? {ENC}
4393 Police Ch09 ????? {ENC}
4395 Police Ch?? ????? {ENC}
4397 Police Ch?? ????? {ENC}

SCHOOL:
4561 School Transportation A. This was school principal & student related discussion. No school bus transportation related chatter/talk, ever.

SHREWSBURY:
4865 Shrewsbury Fire
4867 Shrewsbury Radio Techs
4885 Shrewsbury Police

OUTSIDE AGENCY - OTHER:
2209 MSP TECH-Statewide
2217 MSP Statewide
2283 MSP LPS-7
3605 (unknown) {ENC}. Heard 1st time on 3/13/20. Heard once this week.
4589 MSP Trp C Holden tie


What has not been found yet, unless they no longer using two-way radios, the City Heath Dept & Worcester Housing Authority (they stopped using the former 453.925 Rptr many years ago now). I think they are on a simplex business frequency now, no more public safety frequency from 10 years ago.

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W1KNE
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Re: Worcester P25 (CoMIRS site 36) Daily Talkgroup log

Post by W1KNE »

sawyer100 wrote:
18 Dec 2021 15:41
4383 Police Ch?? ????? {ENC}
4385 Police Ch?? ????? {ENC}
4387 Police Ch?? ????? {ENC}
4389 Police Ch?? ????? {ENC}
4393 Police Ch09 ????? {ENC}
4395 Police Ch?? ????? {ENC}
4397 Police Ch?? ????? {ENC}
And of course, per our TOS, the encrypted TG usage won't be discussed here either.
Mike Fitzpatrick
Broadcast Engineer - RF Enthusiast - Municipal Fire Alarm Collector
Owner: Scan New England - NECRAT.US
Issues with Scan New England can be privately addressed to me.

nikronzo
Posts: 3
Joined: 18 Dec 2021 18:01

Re: Worcester P25 (CoMIRS site 36) Daily Talkgroup log

Post by nikronzo »

I've also been running unitrunker on the Worcester simulcast site for the last few weeks.

A few additions and edits:
4479 the new WFD Paging Talkgroup is not encrypted, its just P25 data
The Stations ID's are all either 262xxx or 940xxx and use that TG now
I also believe that TG 4477 is a new FD Talkgroup but that will have to be confirmed

A couple of PD TG's you missed as well that are encrypted:
4377
4379
4381
4399

I realize discussion of encrypted TG's is not allowed, but would all the TG's for the Worcester P25 not follow very closely the old EDACS system of which all TG's were analog unencrypted. I would think the PD TG's might follow that pattern as a thought.

In addition, 4405 and 4435 also popped up today.

sawyer100
Posts: 677
Joined: 02 Nov 2005 22:39
Location: Western Worcester Cnty, MA

Re: Worcester P25 (CoMIRS site 36) Daily Talkgroup log

Post by sawyer100 »

thank you for your clarifications and updates !!!

I will re-listen to 4479 only. You are probable right as I wasn't hearing voice, I assumed it was ENC, but I'm sure it's just data only (P25 clear). and figures I stopped listening to Worcester 2 days ago. I will start listening and see what I hear on 4405, 4435 & 4477, and report back in a week or so.

nikronzo
Posts: 3
Joined: 18 Dec 2021 18:01

Re: Worcester P25 (CoMIRS site 36) Daily Talkgroup log

Post by nikronzo »

I took this screen snip of the 18:00 hour test of the paging system, all the audio coming out of the TG is P25 data and Unitrunker is not showing it as P4 mode
Attachments
wfd_paging.PNG
wfd_paging.PNG (99.62 KiB) Viewed 261 times

nikronzo
Posts: 3
Joined: 18 Dec 2021 18:01

Re: Worcester P25 (CoMIRS site 36) Daily Talkgroup log

Post by nikronzo »

update on TG's seen on site 36:

non-Worcester TG's:
3621 and 3665 both Encrypted in FDMA mode

Worcester TG's:
4355
4361

WPD: all Encrypted, all TDMA mode
4377
4379
4381
4383
4385
4387
4389
4391
4393
4395
4397
4399

WFD: FDMA Unencrypted
4405
4477

DPW/Local Patches/Misc: usually TDMA and unencrypted
4563
4587
4867
4869
4871

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