WEMA Information
Alpha repeater is located on Jennings Knob off Sparta Pike, Southeast of Lebanon. All stations monitor this channel at all times. Tones go out over this channel & units in service, or not on a call, monitor this channel. If you just want to hear calls going out, monitor just this channel.
Bravo repeater is located on Mount Defiant, south of Watertown. Stations 2 & 7 uses this site, along with 8 sometimes.
Charlie repeater is located on Franklin Road, in close proximity to Wilson Central High School. This is an optimal site for the City of Lebanon, south-central & southwest Wilson County due to topography. Stations 1, 5 & 6 use this site regularly. Several public safety agencies use this tower for repeaters, along with the now operational TACN P25 Gladeville site.
Delta repeater is located atop the hill near Willoughby Station in Mt. Juliet. Stations 3 & 4 use this site very often, and sometimes 5 or 6 may use it as well. Downtown Nashville can be viewed atop this tower, giving units in Nashville good communication back to Lebanon, but Charlie does well too. Several public safety agencies use this site for their repeaters. Also, if your wanting to keep up with WEMA stations 3 & 4, just monitor this repeater.
During structure fires or critical calls, the national VHF Tactical channels are used by almost all stations & shifts. Incident commanders monitor the operations on simplex, & relay important information to dispatch on repeater. So, it's highly unlikely you will intercept V-Tac scene traffic unless you're close because of those frequencies being narrow-banded, low power & simplex.
All of this information & site coordinates can be searched on the FCC's database. Calls are dispatched on channels that are geography close to the calls - no simulcast is used for now. I don't have station tones, but hope this helps you know how they work.
Take care!