3com 3CRWX440095A User Manual

C

HAPTER

 6: U

SING

 RF P

LANNING

7 Click Next.

The Channel Assignment Progress page appears.

8 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. 

9 Click Finish to accept the channel assignments. 

The new channel assignments are reflected in the Coverage Areas pane.

The “Compute and Place” step 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. 

To calculate optimal power:

1 The Organizer panel is displayed on the left. Expand Sites, right-click on a 

building, and select Edit.

The Modify Building wizard is displayed.

2 Select the Plan RF Coverage tab; then click Compute Optimal Power. 

The Compute Power For wizard appears, showing a list of the areas you 
defined and the corresponding technology.