I thought I covered this in my last post when you asked for Waxhaw Police.
All small town police departments are dispatched by the Union County Sheriff's Office.
The frequency is the same as before:
453.850 Mhz.
The fire frequencies are as follows:
154.220 Mhz County Fire Dispatch
154.085 Mhz County Fire II
154.415 Mhz County Fire III
154.280 Mhz State Fire
156.165 Mhz. Mecklenburg Fire Dispatch
Check the database under the Char/Meck P-25 trunking system. From there you will find all the information for Cabarrus, Gaston, Mecklenburg, & Union Counties and what talkgroups they are operating on.
David