Metropolitan wide area network

A wide area communication network comprising:

• at least two hub sites, said hub sites being interconnected by a communication backbone, each said hub site providing coverage in at least one sector;
• at least two remote sites corresponding to each of said sectors;
• and
• a point-to-multi point broadband wireless system, said at least two remote sites being coupled to a corresponding hub site through said point-to-multi point broadband wireless system, wherein said point-to-multi point broad band wireless system at each said hub site comprises:
• a first radio unit operating on a first selectable frequency and providing coverage in a first sector;
• a second radio unit operating on a second selectable frequency and providing coverage in a second sector, said second sector being substantially adjacent to said first sector;
• and
• a frequency selector to select said first selectable frequency and said second selectable frequency from a plurality of available frequencies such that said first and second selectable frequencies are substantially separated thereby minimizing co-channel interference.