It reduces the potential for mutual interference where the assignment of different frequencies to each user is not practical or possible.
U.S. mobile data usage in 2017 was 40 times that in 2010, forcing frequencies to be reallocated.
[1][2][3] The FCC's 2016 auction allowed two or more stations to share a single 6 MHz television channel while retaining their licenses and all rights.
[4][5][6] NBC sold the spectrum of three of its stations in the 2017 FCC auction: WNBC New York, Telemundo WSNS-TV Chicago and WWSI Philadelphia.
[11] This article incorporates public domain material from Federal Standard 1037C.