http://www.tvtechnology.com/article/125416
Over 1500 MHz worth of frequency spectrum assigned to the federal government is being considered for broadband data use.
While many of these chunks of radio spectrum are used for non-voice data, links and video surveillance, the 406.1 to 420 MHz band is heavily used for both federal and military trunking and conventional radio systems. Keep an eye out for upcoming changes in this band...