Thanks, i understand now.Let's see if I can simply explain a complicated thing.
In the beginning, MetroSafe started off as a 12 site/tower simulcast system with those towers being only in Jefferson County. A 13th site was quickly added to deal with coverage issues in the southwest portion of the county.
A few years later, MetroSafe applied for a federal grant to extend coverage into the Oldham, Shelby and Bullitt County areas. When that happened each of those three counties got one additional tower, each on its own frequencies (1 control and 4/5 voice frequencies). The Oldham, Shelby and Bullitt sites/towers are not simulcast (there are satellite receivers that are linked via microwave).
The thinking was that if a Jefferson County unit roamed into an adjacent county, the radio would determine where the best signal came from and would "select" that site. Not all of the talkgroups were allowed to affiliate with those 3 remote sites, just the mutual aid channels and some overflow operations talkgroups. That means everyone involved (dispatchers and responders) had to be mindful of which talkgroups would "work" on the three remote sites. Unfortunately that hasn't always happened - there would be police pursuits that went into Oldham County and communications fell off. That was because the police primary talkgroup wasn't allowed to affiliate with Oldham County's site. The stated reason was that the number of voice channels was limited and allowing the primary police, fire and EMS talkgroups to affiliate with the remote sites would clog up the system.
An offshoot to those remote sites was MetroSafe approaching Oldham, Shelby and Bullitt counties, inviting them to jump on the MetroSafe system. Oldham County was the first and they went live "about" a year ago. Bullitt County is getting ready to transition "any time now" and Shelby County said (I think) "thanks, but not right now".
I know Oldham County talkgroups will be heard on both the Oldham and Jefferson County towers. I'm presuming Bullitt County will do the same.
So yes, there are 4 sites/towers, but one of those is simulcast, meaning there are four sets of frequencies to program.
Would that be what you get if they have the system set for site trunking? I know way back when we were first getting the MetroSafe System set up, Jefferson County sites only, they had that set up. A lot of tinkering was done just to see how things worked.True but for some reason the Bullitt county site is set to isolated currently or at least that is what DSD Plus is deciding
The system can be set to only allow certain talkgroups to remain on that site unless a specified talkgroup "roams" over to another site, essentially the BC side of things could be setup to handle BC traffic and keep it off the JC simulcast unless a radio "roams" over or drags a talkgroup to those sites...Would that be what you get if they have the system set for site trunking? I know way back when we were first getting the MetroSafe System set up, Jefferson County sites only, they had that set up. A lot of tinkering was done just to see how things worked.
The frequencies are listed under the New Bernheim site (mis-spelled New Bernhaim in the database).so have we seen any frequencies for the new Bullitt County thugs come online yet I mean we heard rumors a while back did they were close to being ready to go online