Channel Utilization Trend

The Channel Utilization Trend chart is a line chart that shows the percentage of total utilization on each channel over a time interval. The channel utilization includes the utilization due toWi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.as well as utilization due to non-Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.interferers andACIAdjacent Channel Interference. ACI refers to interference or interruptions detected on a broadcasting channel, caused by too much power on an adjacent channel in the spectrum..

For additional information on how the spectrum analysis feature measuresACIAdjacent Channel Interference. ACI refers to interference or interruptions detected on a broadcasting channel, caused by too much power on an adjacent channel in the spectrum., seeChannel Metrics.

This graph can show data recorded for the last ten, thirty, or sixty minutes. Spectrum monitors display spectrum analysis data seen on all channels in the selectedbandBand refers to a specified range of frequencies of electromagnetic radiation., and hybrid APs display data from the one channel they are monitoring. When you hover your mouse over any line in the chart, a tooltip shows the percentage of the channel being utilized at the specified time.

Click the down arrow in the upper right corner of this chart, then click theOptionsmenu to access these configuration settings. Once you have configured the desired parameters, clickOKat the bottom of theOptionsmenu to save your settings and return to the spectrum dashboards.

Table 1:Channel Utilization Trend Options

Parameter	Description
Intervals	The Channel Utilization Trend chart shows channel quality or channel availability for the past 10 minutes by default. To view data for a different time range, click theIntervalsdrop-down list and select one of the following options: 10 minutes 30分钟 1 hour
BandBand refers to a specified range of frequencies of electromagnetic radiation.	Radio band displayed in this graph (2.4 GHz or 5 GHz).
Channel Numbering	This parameter is not configurable for graphs created by hybrid APs or spectrum monitor radios that use the 2.4GHzGigahertz.radiobandBand refers to a specified range of frequencies of electromagnetic radiation.. A hybrid AP on a 20MHzMegahertz通道sees 40MHzMegahertzWi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.data as non-Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.data. For spectrum monitors using the 5GHzGigahertz.radiobandBand refers to a specified range of frequencies of electromagnetic radiation., click theChannel Numberingdrop-down list and select either20 MHzor40 MHz通道numbering to identify a channel numbering scheme for the graph. Graphs for AP radios that support 802.11AC include an additional80 MHzoption for very-high-throughput channels.
Show	To select individual channels you want to display on this chart, click the check box by a channel entry, then click the通道drop-down list to select the channel to display. To hide a channel, uncheck the check box by that channel number.