Cisco AIR-PCI340 Installation And Configuration Manual page 287

Appendix F Performing a Site Survey
Table F-3
site survey test is running.
Table F-3
Statistic
Signal Strength
Signal Quality
(2.4-GHz client adapters)
Noise Level
(2.4-GHz client adapters)
Beacons Received
(5-GHz client adapters)
Cisco Aironet 340, 350, and CB20A Wireless LAN Client Adapters Installation and Configuration Guide for Windows
OL-1394-07
interprets the information that is displayed on the Site Survey - Active Mode screen while the
Site Survey Active Mode Statistics
Description
The signal strength for all received packets. The higher the value
and the more green the bar graph is, the stronger the signal.
The histogram below the bar graph provides a visual
interpretation of the current signal strength. Differences in signal
strength are indicated by the following colors: green (strongest),
yellow (middle of the range), and red (weakest).
Range: 0 to 100% or –95 to –45 dBm
The signal quality for all received packets. The higher the value
and the more green the bar graph is, the clearer the signal.
The histogram below the bar graph provides a visual
interpretation of the current signal quality. Differences in signal
quality are indicated by the following colors: green (highest
quality), yellow (average), and red (lowest quality).
Range: 0 to 100%
This setting appears only for 2.4-GHz client adapters and
Note
only if you selected signal strength to be displayed as a
percentage. See the
section on page F-3
The level of background radio frequency energy in the 2.4-GHz
band. The lower the value and the more green the bar graph is, the
less background noise present.
The histogram below the bar graph provides a visual
interpretation of the current level of background noise.
Differences in background noise level are indicated by the
following colors: green (low noise), yellow (middle of the range),
and red (high noise).
Range: –100 to –45 dBm
Note This setting appears only for 2.4-GHz client adapters and
only if you selected signal strength to be displayed in
dBm. See the "Specifying Signal Strength Units" section
on page F-3 for information.
The percentage of beacon packets received versus those expected
to be received. The higher the value and the more green the bar
graph is, the clearer the signal.
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 setting appears only for 5-GHz client adapters.
Using Active Mode
"Specifying Signal Strength Units"
for information.
F-11