Somerset County Trunk System

[W2SJW]

Here's the latest news from my personal contact at Moto:

1. The trunked side of the new system will reside on 8 freq. pairs in the 500 MHz licenses. The system is NOT slated at this time to use any of the T-band 470 freq's at all. The first freq on the site list of 500.3375 is the OEM and Park Ranger channel now, and will probably not be part of the system (the first in the list will probably be 500.6125).

2. He had told me about plans to have conventional simulcasts of certain PD/FD/EMS operations. Unsure of where, but that it most probably would occur on the 470 freq's.

3. There is also the tentative plan of a county-wide paging channel for emergency services, and that would also be on one of the 470 freq's as well.

These are the few things he was able to get when talking with other team members working on the system. You guys that are good with math might want to start figuring the base/offset data based on this..

BTW - he tells me that FD/EMS roll-out on Burlington should occur very soon. They put the conventional simulcast patches up for audio & signal strength tests.

More to come....

 

[robbinsj2]

A few people are working on this system over at http://www.fordyce.org/cgi-bin/yabb2/YaBB.cgi?board=SomersetNJ. I was posting duplicates here for a while, but it seemed like most people posting here were also there, and then some (plus updating 2 threads got tedious).

A quick summary to bring this forum up to speed:

470.1375 = paging channel (future use)
476.0125 = conventional interop repeater
476.0625 = conventional interop repeater
Base=500.3375, Offset=380, Step=25.0
Base=501.9125, Offset=430, Step=25.0
Base=502.5125, Offset=450, Step=25.0

Also shown hits for v0x100, no Fx associated yet.
One of the interop Fx listed above has been in use for a while, I think with PL 167.9, for county services or sanitation or something. John Burricelli's PDF has info on it.
Base/offsets should work for the 500+ MHz channels, but need to be confirmed when traffic increases.
CWID is going out on 500.3375, and Trunker shows it, so that channel is loaded into the system somehow.

TGIDs:
8048, encrypted, very minimal use
56016, encrypted, exists on both zones, light use

Trunker has recently logged TG activity on:
501.9125
502.5125
502.5375
502.5675
502.6125
502.6875
###.#### 0x100

Data hasn't been submitted to the DB yet because we're awaiting more substantial usage for confirmation.

 

[W2SJW]

Thanks a million for the info - I can finally get a base/offset pair going for my 96!

 

[mikea7531]

The Somerset County System is now in fail-soft mode. This also includes the frequencies that the Sherrifs, South Bound Brook PD, County Prosecutors, County Public Works and Maintenance currently uses in conventional mode. No activity has been heard from any of the named users on their assigned frequencies.

 

[brucefans]

Last site will most likely be complete week of 11/29.

More radio tech activity and signal level.

First fleetmap will most likely be Somerset County Roads during Q1 05!

 

[brucefans]

System now OTA as of 12/15. Last site OTA. Control channel today on 502.6875. look for testing next several weeks. Not all channels will be OTA, co-channel issues & existing conventional users will need to migrate ie OEM Sheriiff Bound Brook and so on. Q1 Roads first.

 

[mikea7531]

Bound Brook is not a user of the system, but they will have a radio so they can communicate freely with the county and South Bound Brook PD. The future users of the system will be:
County Public Works
County Sheriffs
County Prosecutors
County OEM
County Park Rangers
County Mutual Aid Coordinators
County HazMat
South Bound Brook Police

brucefans,
Do you know if South Bound Brook PD and County Sheriffs is going to be digital or analog?

 

[W2SJW]

I was the communications officer on Bound Brook OEM when the planning for the system was under way full-swing. BBPD politely refused an invite to the system because they would loose direct mutual-aid contact with Bridgewater & Middlesex.

By that time, BBPD was well involved with getting the licenses for the town's new PD repeater anyway...

 

[brucefans]

For those that want the channel number associated
with each frequency of the system, the layout of the TRS is as follows.

CH1 502.8375
CH2 502.6875
CH3 501.9125
CH4 502.6125
CH5 502.5625
CH6 502.5375
CH7 502.5125
CH8 500.3375

Conventional SIMULCAST repeater. 476.0126
SIMULCAST Paging 470.1375

 

[mikea7531]

Testing of the new TRS continued yesterday. The County OEM Director (LeRoy Gunzelman) and various radio technicians were heard on the air with a talkgroup of 9680 - Analog. Also heard radio technicians this AM.

 

[mikea7531]

Some county employees were heard on talkgroup 11440 - Analog. So far, so good!

 

[W2SJW]

You sure that wasn't the Moto guys? I heard that for about an hour yesterday, and the signals were great!

 

[mikea7531]

It prolly was the Moto guys, really couldn't identify them.