This from

McHenry County has a new fire frequency which is actually the old McHenry County Sheriff dispatch frequency (now on Starcom). The new ‘Fire South’ channel is a narrowband repeater on 155.790 162.2 PL and covers Cary, Fox River Grove, Lakewood, and the Nunda Rural FPD. The four departments are all dispatched by the Southeast Emergency Communications Center (SEECOM) in Crystal Lake and previously operated on 154.250.

thanks Chris