User`s guide

USM-Metro-RKS1-091807-01 Ruckus Metro Broadband Gateway 29
Viewing Device, Internet, and System Status
Air Quality Indicator
The Air Quality indicator icon shows the current state of your wireless connection. Air Quality is measured
by the Received Signal Strength Indication (RSSI) value, which is a measurement of the wireless signal
strength. A high RSSI value usually means that the wireless connection is stable, and quality data
transmission can be achieved.
The Air Quality Indicator examines the environment that surrounds a Ruckus Metro Broadband Gateway,
and determines the amount of interference in the environment. The Radio Frequency (RF) side of a wireless
device is a combination of a receiver and a transmitter. Both receiver and transmitter provide feedback as
they operate. The Air Quality indicator bases its evaluation on the Received Signal Strength Indication
(RSSI) that is returned as part of the 802.11 transmission acknowledgement.
Figure 21—Air Quality indicator
Table 7—Air Quality Indicator Values
Number of Bars RSSI Strength Quality
5 above 24 Excellent
4 between 24 and 20 Good
3 between 19 and 14 Average
2 between 13 and 8 Marginal
1 below 8 Poor
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