User's Guide

Wireless Array
Viewing Status on the Wireless Array 115
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When viewing a graphical display, click Bars to have the bar graphs
displayed against a gray background — you may find this easier on the
eyes. This operation is not available when Text is selected.
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You may sort the rows based on any column that has an active column
header, indicated when the mouse pointer changes to the hand icon .
Sorting is only available in the rotated view.
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At the bottom left of the frame, you may select whether to display only
2.4 GHz channels, 5 GHz channels, or both (the default is both). Note that
the data is an instantaneous snapshot — it is not an average or a
cumulative total.
Spectrum Analyzer Measurements
The spectrum analyzer displays the following information:
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Packets/Sec: Total number of wireless packets per second on the channel,
both valid and errored packets.
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Bytes/Sec: Total number of wireless bytes per second on the channel,
valid packets only.
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802.11 Busy: Percentage of time that 802.11 activity is seen on the channel.
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Other Busy: Percentage of time that the channel is unavailable due to
non-802.11 activity.
The total busy time (802.11 Busy plus Other Busy) will never total more
than 100%. The remaining time (100% minus total busy time) is quiet
time — the time that no activity was seen on the channel.
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Signal to Noise: Average SNR (signal to noise ratio) seen on the channel,
calculated from the signal seen on valid 802.11 packets less the noise floor
level. A dash value “-“means no SNR data was available for the interval.
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Noise Floor: Average noise floor reading seen on the channel (ambient
noise). A dash value “-“means no noise data was available for the
interval.
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Error Rate: Percentage of the total number of wireless packets seen on the
channel that have CRC errors. The Error rate percentage may be high on