Isanti County ARMER

[ScanWI]

I have found some unidentified Talkgroups in Isanti county, 6032, 6042. I have programed them into the scanner and I am listening for any activity. If anyone knows about these please share, I suspect them to be County Fire. Also feel free to program them.

This is from a local FF, they have two channels one is Paging and the other is dispatch. I would assume that there is a VHF simulcast, but the old VHF Fire seems dead so maybe they narrow banded at the same time.

 

[ScanWI]

Also Talkgroup 6034

 

[JASII]

Isanti County ARMER System

Are you saying that ALL of the old VHF frequencies are dead or just the old fire channel? Just because it was a fire channel before does NOT necessarily mean it will be used for fire paging once the switch to ARMER happens. Some areas have used other frequencies for fire paging post transition. For example, the Sheriff's Office in Stillwater uses uses two frequencies that were formerly sheriff's channels. DCC in rural Empire Township uses two channels that really aren't the traditional 154.xxxx. I think Hennepin, Ramsey, and Anoka counties are using old fire mains. I don't recall at the moment if the sheriff's office in Shakopee uses a previous fire channel or a previous sheriff channel. My advice is keep ALL of the old VHF channels in for a while. Do you know if the highway department switched yet? As far as talkgroups go, many listeners ought to consider entering the entire range of talkgroup numbers sequentially for a given area and then determine who each user is. For example, is everything 6000 to 6100 Isanti County? The system designers allow for an abundant number of talkgroups, thus you might not hear one for a long period of time even though it is allocated for a particular use. For example, the Cambridge Fire Department might have Isanti County Fire Dispatch as one of their assigned talkgroups, but they could have several fire truck to truck talkgroups and/or their might be several countywide fire talkgroups. Some you might only hear in use if they have a big burner and call for mutual aid. Again, the point is, don't limit yourself. If the talkgroups start at 6000, enter 6000, 6002, 6004.....6098 (it might be higher or lower, too) until you have some of the most likely talkgroups for a given sub-system. Then, try to determine a talkgroup name and/or usage.

 

[ScanWI]

I never said anything about the channels being dead. I am trying to share my findings so we can all work together to figure them out, I am not limiting myself, I am decoding the Affiliation list from the Control Channel. As far as ARMER goes it sounds as if they have a paging and a Dispatch Channel. This is totally unconfirmed, the VHF I believe has been narrow banded and the department issued new pagers.

6042 seems to be Isanti County Highway Department

 

[mmtstc]

So far for Isanti County, I have logged the following talkgroups that are not yet identified.

6002
6004
6006 this talkgroup is on the dispatch consoles
6010
6032 I agree that this is the fire main
6034
6036
6040
6042 I also agree that this is the hwy dept.
6046

I believe that the primary reason for the move to the split channel dispatches in Dakota and Washington county was that the sheriffs offices had better, more expansive repeater networks compared to the simplex system that previously existed in those counties. It also helps with congestion on the fire mains.

you can expect that each police and fire department will have their own admin talkgroup, so 4 LE admin talkgroups and 4 Fire admin talkgroups. I would image that there will also be about 4 fire tactical channels, 4 LE tacs (2 of them i presume to be slaved to ENC) and 4 countywide tac TG's.
EMS will not have any allocations in Isanti county as Allina is their sole provider. I suspect that each PW department may migrate. The Jail will also have 1-4 talkgroups at their disposal.

 

[unclebubba]

Looking through some files I had saved on my computer, here is the planned Isanti fleetmap from a June, 2010 Radio Board meeting. It mentioned that Isanti County had 29 allocated talkgroups. The "Y" or "N" in each line represents whether or not it was available to dispatchers.

I'll add my guesses in red at the end of each line.


Isanti 911 Isanti 911 Y Never Encrypted (3446)
Isanti County Admin IS ADMIN Y Never Encrypted (6000)
Isanti County Fire IS CO FIRE Y Never Encrypted (6032)
Isanti Sheriff Admin 1 ISSO ADM 1 Y Never Encrypted Dispatch (6014)
Isanti Sheriff Admin 2 ISSO ADM 2 Y Selectable Encrypted Car-to-Car (6016)
Isanti Sheriff Admin 3 ISSO ADM 3 Y Selectable Encrypted
Isanti Co Jail IS JAIL N Never Encrypted
Isanti Tactical 3 IS TAC 3 Y Never Encrypted
Isanti Tactical 4 IS TAC 4 Y Never Encrypted
Isanti Tactical 5 IS TAC 5 Y Never Encrypted
Isanti Tactical 6 IS TAC 6 Y Never Encrypted
Isanti Roam IS Roam Y Never Encrypted
Isanti Patch IS PATCH Y Never Encrypted
Isanti Law Encrypt 1 IS LE TAC 1 N Always Encrypted
Isanti Law Encrypt 2 IS LE TAC 2 N Always Encrypted
Isanti Co Hwy Admin IS HWY ADM N Never Encrypted (6042)
Isanti Co Hwy Op 1 IS HWY OP1 N Never Encrypted
Braham Fire BR FD ADM N Selectable Encrypted
Braham Police BR PD ADM N Selectable Encrypted
Braham Public Works BR PW ADM N Never Encrypted
Cambridge Fire CM FD ADM N Selectable Encrypted
Cambridge Police CM PD ADM N Selectable Encrypted
Cambridge Public Works CM PW ADM N Never Encrypted
Cambridge Public Works OP 1 CM PW OP1 N Never Encrypted
Dalbo Fire DA FD ADM N Selectable Encrypted
Isanti Fire IS FD ADM N Selectable Encrypted
Isanti Police IS PD ADM N Selectable Encrypted
Isanti Public Works IS PW ADM N Never Encrypted
Isanti Public Works OP 1 IS PW OP1 N Never Encrypted

I'm surprised that they didn't list any Fire Tac channels or any Emergency Management Channels.

In that same report, there was this "preliminary layout of Isanti Fire Department's" radios: