I think that the update you did today is fine. It might be helpful to add a news note explaining that the Titusville tower is no more, retired, shut down, etc, and give basic information on the nature of the upgrade, which is the first phase in simulcasting the whole county's system.
This file here:
http://www.brevardcounty.us/docs/de...t/800-mhz-user's-meeting-nov2013.pdf?sfvrsn=0
is useful but it would be helpful to have the narrative that goes along with this presentation so it is easier to understand.
The ultimate plan is for the county to have a north simulcast system and a south simulcast system.
The north system will consist of the following sites: All will be full TX/RX sites,
which is an upgrade from the existing system where some of these sites already exist but are RX only,
functioning as voting receiver sites.
Mims
Scottsmoor
Titusville
Sharpes
Cocoa
Cape Canaveral
Rockledge
The north simulcast system's switch (brain) will be located at the Brevard County Sheriff's Office Titusville headquarters complex.
Note, although it is down for now, the Titusville site will return after being reconfigured, or that is how I interpret the document.
Then, the south simulcast cell will be constructed, consisting of:
Melbourne
Indian Harbour Beach
Palm Bay
Barefoot Bay
The south switch will be located at the Palm Bay site.
Note, the Titusville site will return after being reconfigured, or that is how I interpret the document.
The idea behind this simulcast upgrade (besides being a reason to spend money, I think) is to make it unnecessary for a system user to ever have to manually choose sites as long as he is within the coverage range of his half of the county, north or south.
The way this is done is that all sites within a simulcast cell are configured identically. They are exact clones of each other. Same frequency assignments, same trunked data, everything.
Each site is disciplined to a GPS or WWV-derived reference time base so they are exactly in sync with each other. The transmitter frequencies (for any given channel) will be exactly the same from one site to the next, within a tolerance of just 1 Hz. The timing for high and low speed data, and voice, is adjusted to be precisely the same, and the modulation levels of high and low speed data and voice are also adjusted with precision to be the same. This ensures reliable communications even in the areas where the user is transitioning from one site to another.
Here's the actual manual on EDACS simulcast system configuration, which is very informative.
http://www.repeater-builder.com/ge/lbi-library/lbi-38587b.pdf