780| Spectrum Analysis AOS-W 6.5.3.x| User Guide
Parameter Description
Band Radio band displayed in this graph.
For spectrum monitor radios using the 5 GHz radio band, click the Band drop-down list
and select 5 GHz upper, 5GHz middle or 5Ghz lower to display data for that portion
of the 5Ghz radio band. This parameter is not configurable for graphs created by
hybrid APs or spectrum monitor radios that use the 2.4 GHz radio band.
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 By default, this chart displays data for the current noise floor, adjacent channel
interference (ACI), and the maximum AP power level for each channel. To display
interference power levels form other devices, click the show checkbox then click the
show drop-down list and select one of the following device types.
n Microwave (This option is only available for 2.4 GHz radios)
n Bluetooth (This option is only available for 2.4 GHz radios)
n Fixed Freq (Others)
n Fixed Freq (Cordless Phones)
n Fixed Freq (Video)
n Fixed Freq (Audio)
n Freq Hopper (Others)
n Freq Hopper (Cordless Network)
n Freq Hopper (Cordless Base)
n Freq Hopper Xbox (This option is only available for 2.4 GHz radios)
n Microwave (Inverter) (This option is only available for 2.4 GHz radios)
n Generic Interferer
For more information on non-Wi-Fi device types detected by a spectrum monitor, see
Working with Non-Wi-Fi Interferers on page 787.
Channel Range For graphs created by spectrum monitors, specify a channel range to determine which
channels appear in this graph. Click the first drop-down list to select the lowest channel
in the range, then click the second drop-down list to select the highest channel to
appear in the graph.
This graph displays all channels within the spectrum monitor’s radio band by default.
NOTE: This parameter is not configurable for graphs created by hybrid APs.
Table 174: Interference Power Options
Quality Spectrogram
This plot shows the channel quality statistics for selected range of channels or frequencies. This chart can also
be configured to show channel availability, the percentage of each channel that is unused and available for
additional traffic.
Channel Quality is a weighted metric derived from key parameters which include noise, non-Wi-Fi (interferer)
utilization and duty-cycles and certain types of retries. Quality levels are indicated by a range of colors between
dark blue, which represents a higher channel quality, and red, which represents a lower channel quality.
Channel availability is indicated by a range of colors between dark blue, which represents 100% channel
availability, and red, which represents 0% availability.
For additional information on interpreting an Alcatel-Lucent Spectrogram plot, see Swept Spectrogram on page 783.
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