3Com WX4400 Reference Manual page 291

13 To configure settings for a radio, click the 802.11g Radio or 802.11a
Radio tab.
a To enable the radio, select Enabled.
b If the MAP model supports external antennas, select the location and
model from the Antenna Location and Antenna Type boxes.
To meet regulatory requirements. you must ensure that the external
antenna model you specify exactly matches the external antenna that is
attached to the MAP's external antenna port.
c To indicate the coverage direction of the antenna, change the value in
the Directionality of antenna box. The default value of 0 degrees
directs the coverage to the right on the floor plan. For example, to
move the coverage 90 degrees (so that the coverage area of the
antenna faces downward as you view the floor plan), type 90 in the
box.
You can verify and change the coverage direction after completing
this wizard. To verify the coverage, display the floor plan where the
MAP is located. The antenna direction is indicated by an arrow.
To show the RF coverage for the antenna, select the MAP, right-click,
and select Display RF Coverage and the radio type from the
drop-down list.
To adjust the coverage, select the MAP, right-click, and select Edit
Properties from the drop-down list to display the Modify MAP or
Modify DAP wizard. In the wizard, click the tab for the radio to display
its configuration page, edit the value in the Antenna Direction box,
and click OK.
3WXM assumes that the external antenna will be installed so that the
front faces in the direction of coverage (not up or down), and so that the
antenna cable connector faces down or up. 3WXM also assumes that the
antenna does not provide any coverage behind itself.
The Antenna Type and Directionality of antenna boxes appear only if the
MAP model supports an external antenna.
d In the Radio Profile list, select the profile to which the radio belongs.
(For more information, see "Viewing and Configuring Radio Profiles"
on page 272.)
e In the Channel Number list, select the channel number for the radio.
If RF Auto-Tuning for channel configuration is enabled, setting this value
has no effect. The channel number is controlled by RF Auto-Tuning.
Viewing and Configuring MAPs 291