User's Manual

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• Levels: Signal and noise levels during the test, averaged over the duration of the
test.
• SNR: Signal/noise ratio during the test, averaged over the duration of the test.
For more information on interpretation of the test results, see the description of
mean opinion score, MOS, at http://en.wikipedia.org/wiki/Mean_Opinion_Score
.
Test result
5
Excellent
4
Good
3
Fair
2
Poor
1
Bad
In practice, the supported codec’s can reach MOS scores that are slightly above 4.
“Air Utilization Test”
To capture spectrum heavy-users and misconfigurations – such as extensive use of legacy
codecs - in the wlan network, air utilization test should be run. This test is not part of the
test profiles as it is lengthy troubleshoot test. Special attention to the test parameters is
required as the maximum runtime is easily very high. One should check the “aggregate time”
box for an estimate.
To run the test:
1. Select antennas, at least one must be selected.
2. Select the desired channels with the check-boxes.
3. Select the time – in minutes – to listen to each selected channel on each selected
antenna.
The result is a table that has each antenna/channel combination as one row. One will get
simple table result by activating each row with the mouse. There shall be more detailed
result if “Show graph” is selected for the activated row: