Motorola Canopy Backhaul Module user manual Channel Plans, GHz Recommended Frequencies

Channel Plans

Whether using 5.2 GHz or 5.7 GHz modules, frequencies should never be placed closer than 20 MHz. The Canopy modules allow the operator to chose frequencies every 5 MHz. This is so that in the event of co-location with other equipment the operator can customize the channel layout for interoperability.

Backhauls and APs operating in the same frequency band (within the 5.2 GHz band or within the

5.7GHz band) need 100 feet (30 m) of physical separation, as their different transmit and receive frame structures otherwise would cause interference.

5.2 GHz Recommended Frequencies

The following are the 3 non-overlapping channels that are recommended for use with the backhaul module:

•5.275 GHz

•5.300 GHz

•5.325 GHz

5.7GHz Recommended Frequencies

The following are the 6 non-overlapping channels that are recommended for use with the backhaul module when the ISM frequencies are available:

•5.735 GHz

•5.755 GHz

•5.775 GHz

•5.795 GHz

•5.815 GHz

•5.835 GHz

20 Mbps backhaul modules have less “margin” at the edges of their 20 MHz channel. When using 20 Mbps Backhauls, consider using 25 MHz spacing if site engineering allows it, especially if you are engineering backhauls with less than 6° directional separation.

Backhaul User Manual Issue 3 Page 17 of 53