Orlando, in Orange County, is the largest city in East Central Florida.  The Orlando FPAC switch provides a Local Area Network (LAN) on 145.07 that covers all of Orange and Seminole Counties.  It also covers the southern portion of Volusia County and part of the northern portion of Osceola County to the south. 
These diagrams are schematic and are not to scale.
The Orlando LAN – Keystone of the E. Central Florida network.