I have been given the task of refitting an old communication system with a new radio system. The new radio system must be in the 450mhz range. (thats all thats available in this area). The reason I bring this to all other wetheads, I need assistance. We work very tightly with another company that have radio's operating in the 800mhz range. Does anyone have any experience in cross-banding the radio's? I know this is not our normal area, but I am trying to gain knowledge before I open my purse to a salesperson. Any help or direction would be appreciated.