User's Manual

Using the AP as a Spectrum Analyzer
Using Tools in the GUI
5-4
pmp-0049 (September 2012)
If you are connected to an AP through one of its SMs and mistakenly change the AP into an SM, you
will lose connectivity and will need to gain access to the Ethernet side of the AP through another part
of your network to change it back into an AP.
To transform a VLAN-disabled AP into an SM for spectrum analysis and then return the device to
an AP, perform the following steps.
Procedure 3 Converting a VLAN-disabled AP to an SM for spectrum analysis
1
Connect to the wired Ethernet interface of the AP.
2
Access the General tab of the Configuration page in the AP.
3
Set the Device Setting parameter to SM.
4
Click the Save Changes button.
5
Click the Reboot button.
6
When the module has rebooted as an SM, click the Tools navigation link on the left side of the
Home page.
7
Click the Spectrum Analyzer tab.
NOTE: If you simply click the Enable button on the Spectrum Analyzer tab, the display may
include fewer than all frequencies that are detectable, especially in a band, such as 5.8 GHz,
where the number of available center channels is great. If you then click the Enable button a
second time or set the Webpage Auto Update parameter in the Configuration => General tab to
a few seconds, the display includes the entire spectrum. You can later reset Webpage Auto
Update to 0, to disable refresh.
8
Either set the Webpage Auto Update parameter in the Configuration => General tab to a few
seconds or repeatedly click the Enable button.
RESULT: The module enters the scan mode.
9
When you are finished analyzing the spectrum, click the Disable button.
10
In the left-side navigation links, click Configuration.
11
Click the General tab.
12
Set the Device Setting parameter to AP.
13
Click the Save Changes button.
14
Click the Reboot button.
RESULT: The AP boots with its previous frequency setting.