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146 CHAPTER 6: USING RF PLANNING
9 Review the results. The 802.11a channel assignments are listed on the
802.11a Radio(s) tab. The 802.11b/g channel assignments are listed on
the 802.11b/g Radio(s) tab.
10 Click Finish to accept the channel assignments.
The new channel assignments are reflected in the Coverage Areas panel.
Calculate Optimal
Power
The Compute and Place procedure is performed using the maximum
allowed power for the selected channel set in the defined regulatory
domain. Optimal power can be computed for each MAP, where transmit
power is adjusted (up or down) to provide adequate coverage with
minimum RF interference.
When calculating optimal power, you can manually change positions and
counts of MAPs (add or remove MAPs) before the final power
optimization is performed. Changing MAP quantities and positions is
quite typical, given that an operator can interpret the floor plan and
understand any cabling constraints to avoid any positioning problems.
Transmit power levels must be high enough to adequately cover an area,
but also low enough to minimize co-channel interference. 3WXM factors
in these considerations when calculating optimal power.