Spectrum Monitor
30.1 Understanding Spectrum Data
SCALANCE W1750D UI
464 Configuration Manual, 02/2018, C79000-G8976-C451-02
Microwave (Inverter) Some newer-model microwave ovens have the inverter technology to con-
trol the power output and these microwave ovens may have a duty cycle
close to 100%. These microwave ovens are classified as
Microwave (In-
verter)
. Dual-magnetron industrial microwave ovens with higher duty cycle
may also be classified as
Microwave (Inverter)
. There may be other equip-
ment that functions like inverter microwaves in some industrial, healthcare,
or manufacturing environments. Those devices may also be classified as
Generic Interferer Any non-frequency hopping device that does not fall into any of the prior
categories described in this table is classified as a
Generic Interferer
. For
example, a Microwave-like device that does not operate in the known oper-
ating frequencies used by the Microwave ovens may be classified as a
Generic Interferer
. Similarly wide-band interfering devices may be classified
When you move the mouse over a channel, the channel details or the summary of the 2.4
GHz and 5 GHz channels as detected by a spectrum monitor are displayed. You can view
the aggregate data for each channel seen by the spectrum monitor radio, including the
maximum AP power, interference, and the signal-to-noise- and-interference Ratio (SNIR).
SNIR is the ratio of signal strength to the combined levels of interference and noise on that
channel. Spectrum monitors display spectrum data of all channels in the selected band, and
hybrid APs display data for the channel they are monitoring.
Figure 30-2 Channel Details
Channel Details Information shows the information that you can view in the Channel Details
graph.
Table 30- 3 Channel Details Information
An 802.11a or 802.11g radio channel.
Current relative quality of the channel.
The percentage of the channel being used.
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