A variable 600 MHz band plan would create...
A variable 600 MHz band plan would create “interference challenges” and could require hundreds of kilometers of physical separation between TV transmitters and wireless operations, said NAB in a meeting with FCC staff Monday, according to an ex parte filing…
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and accompanying PowerPoint presentation released Thursday (http://bit.ly/18NpDKL). Variable band plans, such as those proposed in the FCC’s 600 MHz band plan public notice (CD May 21 p4), could involve interference “from mobile handsets or base stations to DTV reception” and “interference from high power DTV transmissions to lower-powered wireless operations,” NAB said. The minimum separation between broadcast stations and wireless operations would be “about 350 km,” said NAB. The association’s PowerPoint presentation includes a chart giving the distance between New York City and surrounding cities -- Philadelphia is 138 kilometers away, Boston 301 kilometers and Washington 331 kilometers. These large separation distances could “substantially” limit market variability on the East Coast, and spectrum recovered in one city could limit how much could be reallocated elsewhere, NAB said. The “separation distances needed result in wireless exclusion zones across much of the region,” NAB said.