User's Manual Part 1

Chapter 3 Testing
WiFi Troubleshooting
WiFi Advisor Wireless LAN Analyzer User’s Guide
Page 24 22073751, Rev. 002 December 2014
5 Clear – located under Max Hold, it resets the Max Hold trace and restarts the
measurement.
6 Average – allows averaging of the real-time trace when on
7 Number of Samples – select the number of samples to be used for averaging
of the real-time trace
8 World view – shows all channels. Changing the channel bandwidth changes
how channels are represented in the world view.
To insert a vertical cursor within the real-time spectral plot, touch the graph where
the cursor position is desired. The cursor readout box in the upper left reports the
frequency at that position, in addition to the real-time and max hold signal levels at
that frequency. The cursor can be moved by tapping anywhere on the graph within
the channel width. By default, a cursor is located at the left edge of the view.
Troubleshooting Spectral measurements
The following are some common interferers that could show up in a spectral
measurement.
Microwave ovens can interfere with an 802.11 signal. They are most prevalent in
channels 10 and 11. If possible, it is a good idea to look at the spectral response
while the microwave is running to determine it’s impact.
Bluetooth devices appear as spikes and appear to “roll” through the spectral view.
They are fast moving and you may only see them occasionally. The systems are
designed to be interoperable, but Bluetooth will impact throughput.