102 | Spectrum Monitor Dell PowerConnect W-Series Instant Access Point 6.1.3.4-3.1.0.0 | User GuideChannel MetricsThe channel metrics graph displays channel quality, availability and utilization metrics as seen by a spectrummonitor or hybrid AP. You can view the channel utilization data for the percentage of each channel that iscurrently being used by Wi-Fi devices, and the percentage of each channel being used by non-Wi-Fi devices and802.11 adjacent channel interference (ACI). This chart shows the channel availability, the percentage of eachchannel that is available for use, or the current relative quality of selected channels in the 2.4 GHz or 5 GHz radiobands. While spectrum monitors can display data for all channels in their selected band, hybrid APs display datafor their one monitored channel only.To view this graph, click 2.4 GHz in the Spectrum section of the dashboard.Figure 92 Channel Metrics for the 2.4 GHz Radio ChannelTable 17 shows the information displayed in the channel metrics graph.Microwave(Inverter)Some newer-model microwave ovens have the inverter technology to control the poweroutput and these microwave ovens may have a duty cycle close to 100%. These microwaveovens are classified as Microwave (Inverter). Dual-magnetron industrial microwave ovenswith higher duty cycle may also be classified as Microwave (Inverter). As in the Microwavecategory described above, there may be other equipment that behave like invertermicrowaves in some industrial, healthcare or manufacturing environments. Those devicesmay also be classified as Microwave (Inverter).Generic Interferer Any non-frequency hopping device that does not fall into one of the other categoriesdescribed in this table is classified as a Generic Interferer. For example a Microwave-likedevice that does not operate in the known operating frequencies used by the Microwaveovens may be classified as a Generic Interferer. Similarly wide-band interfering devices maybe classified as Generic Interferers.Table 17 Channel MetricsColumn DescriptionChannel A 2.4 GHz or 5 GHz radio channel.Quality (%) Current relative quality of selected channels in the 2.4 GHz or 5 GHz radio bands, asdetermined by the percentage of packet retries, the current noise floor, and the duty cycle fornon-Wi-Fi devices on that channel.Availability (%) The percentage of the channel currently available for use.Utilization (%) The percentage of the channel being used.WiFi Util (%) The percentage of the channel currently being used by Wi-Fi devices.Interference Util (%) The percentage of the channel currently being used by non-Wi-Fi interference + Wi-Fi ACI(Adjacent Channel Interference)Table 16 Non-Wi-Fi Interferer TypesNon-Wi-FiInterferer Description
