Alcatel-Lucent AOS-W 6.5.3.x - Page 781

The Spectrum Analysis Quality Spectrogram chart measures channel data each second, so after every 5-second
sweep, the newest data appears as a thin colored line on the bottom of the chart. Older data is pushed up
higher on the chart until it reaches the top of the spectrogram and ages out. The example below shows the
Alcatel-Lucent Quality Spectrogram chart after it has recorded over 1,500 seconds of FFT data.
Figure 131 Quality Spectrogram
When you hover your mouse over any part of the spectrogram, a tooltip shows the devices the spectrum
monitor detected on that frequency, the BSSID of the device (if applicable), the power level of the device in
dBm, the time the device was last seen by the spectrum monitor, and the channels affected by the device.
The following table describes the other optional parameters you can use to customize the Quality
Spectrogram. 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 dashboards.
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.
Channel
Range
Specify a channel range to determine which channels appear in the x-axis of this chart. 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 chart.
NOTE: This parameter is not configurable for graphs created by hybrid APs.
Table 175: Quality Spectrogram Options
AOS-W 6.5.3.x | User Guide Spectrum Analysis | 781