Parameter Description
Forspectrum moni tor radios using the 5 GHz radio band, cli ck the Banddr op-down list and select 5 GHz
upper,5GHzmiddl e or 5Ghzl ower to display datafor that portion of the 5Ghzradio band. This parameter is
notconfigurable for graphs cr eatedby hybri d APs or spectrum monitor radios that use the 2.4 GHz radio
band.
Channel
Numbering
Forspectrum moni torsusing the5 GHz radio band, selectei ther 20MHz or40 MHz channel numbering to
identifya channel num bering scheme for thegraph.
NOTE:Thi s parameter is not configurable for graphs created by hybrid APs or spectrum moni torr adios that
usethe 2.4 GHz radio band. A hybrid AP on a 20 MHz channel sees 40 MHz Wi-Fi data as non-Wi-Fi data.
Channel Range Forgraphs created by spectrum monitors, specify a channel range to determine which channels appear in
thisgraph. C lick the firstdrop-down l istto select the lowest channel in the range, then click the second
drop-down list toselect the highest channel to appear in the graph.
Bydefault, this graph displays all channels within the spectrum monitor’s radio band.
NOTE:Thi s parameter is not configurable for graphs created by hybrid APs.
Show Thisgraph can di splayvalues for up to five different device typeson di fferentchannels for a spectrum
monitor, or a single device type fora hybrid AP m onitoring a single channel.
Tochoose whi ch typeof data each line should represent, click the channel number drop-dow n list and
selecta channel w ithin the radio band, then click the device typedrop-dow n list and selectone of the
following device types
lWiFi (AP)
lMicrowave
(Thisoption i s only available for 2.4 GHz radios)
lBluetooth
(Thisoption i s only available for 2.4 GHz radios)
lFixed Freq (Ot hers)
lFixed Freq (Cordl ess Phones)
lFixed Freq (Video )
lFixed Freq (Audio )
lFreq Hopper (O thers)
lFreq Hopper (Co rdless Netwo rk)
lFreq Hopper (Co rdless Base)
lFreqHopper Xbox
(Thisoption i s only available for 2.4 GHz radios)
lMicrowave (Inverter)
(Thisoption i s only available for 2.4 GHz radios)
lGenericInterferer
NOTE:For more i nformation on non-Wi-Fi device typesdetected by a spectrum monitor, see "Working
withNon- Wi-FiInterfe rers" on page 606.
Channel Utilizat ion Trend

The ChannelUtilization Trend chart is a line chartthat shows the percentage of total utilization on each channel

over a time interval. The channelutilizati on includest heuti lization due to Wi-Fi as well as utilization due to non-

Wi-Fi interferersand Adjacent Channel Interference(ACI).

NOTE:For additional information on how the spectrum analysisfeature measures ACI, see "Channel Me trics"on page 588.

This graphc an show data recorded for the last ten, thirty, or sixty minutes. Spectrum monitors display spectrum

analysis data seen on allchannels in the selected band, andhybrid AP s display data fromthe one channel they are

monitoring. Whenyou hover your mouse over any line in the chart, a tooltip shows the percentage of the channel

being utilized at the specified time. The example in Figure 217 shows that channel 1 was 70 % utilized at the

selected time in the chart.

DellPowerConnect W- Series ArubaOS 6.2 | UserGuide SpectrumAnalysis | 594