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Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide for Windows
OL-4211-03
Appendix F Performing a Site Survey
Using the Associated AP Status Tab
Noise Level The level of background radio frequency energy. The lower the
value and the wider the bar graph, the less background noise
present.
The trend graph to the right of the bar graph provides a visual
interpretation of the level of background noise over time.
Differences in background noise level are indicated by the
following colors: green (low noise), yellow (middle of the range),
and red (high noise).
Range: –45 to –95 dBm
Note This parameter appears only if the Display in Percent
check box is unchecked.
Signal Quality The signal quality of the most recently received packets. The
higher the value and the wider the bar graph, the clearer the signal.
The trend graph to the right of bar graph provides a visual
interpretation of the signal quality over time. Differences in signal
quality are indicated by the following colors: green (highest
quality), yellow (average), and red (lowest quality).
Range: 0 to 100%
Note This parameter appears only if the Display in Percent
check box is checked.
Beacons Received The percentage of beacon packets received from the access point
versus those expected to be received. The higher the value and the
wider the bar graph, the clearer the signal.
The trend graph to the right of bar graph provides a visual
interpretation of the signal clarity over time. Differences in signal
clarity are indicated by the following colors: green (highest
quality), yellow (average), and red (lowest quality).
Example: The access point sends out 10 beacons per second, so
you would expect the client adapter to receive 50
beacon packets in 5 seconds. If it receives only 40
packets, the percentage of beacons received would be
80%.
Range: 0 to 100%
Note This parameter appears only if the Display in Percent
check box is checked and the client adapter does not
provide a signal quality value.
Table F-1 Site Survey Utility - Associated AP Status (continued)
Associated AP Status Parameter Description