The 700 MHz band is restricted to Public Safety users .
Ameren can only use the 800 MHz channels , so some sites that previously only had 700 MHz channels have had 800 MHz channels added to allow Ameren access .
Since the 700 MHz band is restricted to Public Safety users , Ameren can only use the 800 MHz channels , so some sites that previously only had 700 MHz channels have had 800 MHz channels added to allow Ameren access .