Device Duty Cycle

The Device Duty Cycle Chart is a stacked bar chart that shows the duty cycle of each device type on a channel. The duty cycle is the percentage of time each device type operates or transmits on that channel. ThoughWi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.devices do not transmit if there is anotherWi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.or non-Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.device active at that time, most non-Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.devices do not follow such a protocol for transmissions. Because these devices operate independently without regard to any other devices operating on the same channel, the total duty cycle of all device types may add up to more than 100% on a channel. For example, one or more video bridges may be active on a channel, each with a 100% duty cycle. The same channel may have a cordless transmitter with a 10% duty cycle and amicrowaveElectromagnetic energy with a frequency higher than 1 GHz, corresponding to wavelength shorter than 30 centimeters.oven with a 50% duty cycle. In this example, the Device Duty Cycle chart shows all three device types with their respective duty cycle percentages.

A hybrid AP on a 20 MHz channel will see 40 MHz Wi-Fi data as non-Wi-Fi data.

Spectrum monitors display spectrum analysis data seen on all channels in the selectedbandBand refers to a specified range of frequencies of electromagnetic radiation., and hybrid APs display data from the one channel they are monitoring. The example below shows data from a spectrum monitor monitoring all channels in the 2.4GHzGigahertz.bandBand refers to a specified range of frequencies of electromagnetic radiation..

Click the down arrow in the upper right corner of this chart, then click theOptionsmenu to access these configuration settings. Once you have configured the desired parameters, clickOKat the bottom of theOptionsmenu to save your settings and return to the spectrum dashboards.

Table 1:Device Duty Cycle Options

Parameter	Description
BandBand refers to a specified range of frequencies of electromagnetic radiation.	RadiobandBand refers to a specified range of frequencies of electromagnetic radiation.displayed in this graph. For spectrum monitor radios using the 5GHzGigahertz.radiobandBand refers to a specified range of frequencies of electromagnetic radiation., click theBanddrop-down list and select5 GHz Low,5 GHz Centeror5 GHz Highto display data for that portion of the 5GHzGigahertz.radiobandBand refers to a specified range of frequencies of electromagnetic radiation.. This parameter is not configurable for graphs created by hybrid APs or spectrum monitor radios that use the 2.4GHzGigahertz.radiobandBand refers to a specified range of frequencies of electromagnetic radiation..
Channel Numbering	This parameter is not configurable for graphs created by hybrid APs or spectrum monitor radios that use the 2.4GHzGigahertz.radiobandBand refers to a specified range of frequencies of electromagnetic radiation.. A hybrid AP on a 20MHzMegahertzchannel sees 40MHzMegahertzWi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.data as non-Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard.data. For spectrum monitors using the 5GHzGigahertz.radiobandBand refers to a specified range of frequencies of electromagnetic radiation., click theChannel Numberingdrop-down list and select either20 MHzor40 MHzchannel numbering to identify a channel numbering scheme for the graph. Graphs for AP radios that support 802.11AC include an additional80 MHzoption for very-high-throughput channels.
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 radiobandBand refers to a specified range of frequencies of electromagnetic radiation.of the spectrum monitor by default. NOTE:This parameter is not configurable for graphs created by hybrid APs.