Users Guide

Figure 121 Channel Metrics Trend Chart
Table 161 describes the other parameters that can be displayed in the Channel Metrics Trend output. Click the
down arrow in the upper right corner of this chart then click the Options menu to access these configuration
settings. Once you have configured the desired parameters, click OK at the bottom of the Options menu to
save your settings and return to the spectrum dashboard.
Parameter Description
Band Radio band displayed in this graph (2.4 GHz or 5 GHz).
Show Trend for Last The Channel Quality Trend chart shows channel quality or channel availability
for the past 10 minutes by default. To view data for a different time range, click
the Show Trend for Last drop-down list and select one of the following options:
l 10 minutes
l 30 minutes
l 1 hour
Channel numbering This parameter is not configurable for graphs created by hybrid APs or
spectrum monitor radios that use the 2.4 GHz radio band. A hybrid AP on a 20
MHz channel sees 40 MHz Wi-Fi data as non-Wi-Fi data. For spectrum monitors
using the 5 GHz radio band, click the Channel Numbering drop-down list and
select either 20 MHz or 40 MHz channel numbering to identify a channel
numbering scheme for the graph. Graphs for AP radios that support 802.11ac
include an additional 80MHz option for very-high-throughput channels.
Show Lines for These
Channels
The Channel Quality Trend chart for a spectrum monitor can display channel
quality, channel availability, or channel utilization values for up to five different
channels on the selected radio band. Charts for hybrid APs can display data for
the one channel monitored by that hybrid AP radio.
Table 161: Channel Metrics Trend Options
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