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Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
WPWR-TV (channel 50), branded as Fox Chicago Plus, is a television station licensed to Gary, Indiana, United States.It is one of two commercial television stations in the Chicago market to be licensed in Indiana (alongside WJYS [channel 62] in Hammond).
It is designed to prevent electromagnetic interference by avoiding co-channel operation with systems that predated Wi-Fi, such as military radar, satellite communication, and weather radar, and also to provide on aggregate a near-uniform loading of the spectrum (uniform spreading). [1] It was standardized in 2003 as part of IEEE 802.11h.
For example, North American channel 1 occupies the spectrum from 44 to 50 MHz. See Broadcast television systems for a table of signal characteristics, including bandwidth, by ITU letter designator. Analog television broadcasts have been phased out in most regions, having been replaced by digital television broadcasts.
The Pan-American television frequencies are different for terrestrial and cable television systems. Terrestrial television channels are divided into two bands: the VHF band which comprises channels 2 through 13 and occupies frequencies between 54 and 216 MHz, and the UHF band, which comprises channels 14 through 36 and occupies frequencies between 470 and 608 MHz.
The following television stations broadcast on digital channel 50 in the United States: [1] [2] [3] K50GA-D in Laketown, etc., Utah, on virtual channel 14, which rebroadcasts KJZZ-TV; KHDE-LD in Denver, Colorado, to move to channel 4, on virtual channel 51; KTCJ-LD in Minneapolis, Minnesota, to move to channel 13, on virtual channel 50
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The following television stations operate on virtual channel 50 in the United States: [1] K29NN-D in Lucerne Valley, California; K33OB-D in Roswell, New Mexico; K33OK-D in Overton, Nevada; K36KW-D in Redwood Falls, Minnesota; KASY-TV in Albuquerque, New Mexico; KBAB-LD in Santa Barbara, California; KDHU-LD in Houston, Texas; KDOS-LD in Globe ...