3Com WX4400 Reference Manual page 149

To see the RF coverage area for an area, right-click on the area (either in
the organizer panel or on the floor) and select Display RF Coverage. If
the area supports more than one radio technology, you also need to
select the technology. The choices available depend on the wireless
technology you chose for the coverage area.
The following graphic shows an example of the 802.11b coverage for an
area.
3 To see the RF coverage area for a specific MAP or radio, right-click the
MAP or radio, and select one of the following:
Display RF Coverage > 802.11a
Display RF Coverage > 802.11b
Display RF Coverage > 802.11g
The choices available depend on the wireless technology you chose for
the coverage area.
The following graphic shows an example of an 802.11 radio belonging to
a specific MAp providing RF coverage.
Computing MAP Placement 149