Windstream plans to expand its fixed wireless access operations in 40 U.S. markets, using 39-GHz millimeter wave spectrum, presumably for backhaul and business customer access. Ironically, Windstream in 2008 wrote down the value of its 39 GHz spectrum holdings to zero, as part of a sale of mobile and wireless assets to AT&T Mobility.The collapse of a millimeter-wave access services business is
