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‘Keep wireless communication network aloof’

Washington, US: The US Departments of Transportation and Defense, on behalf of the National Executive Committee for Space-Based Positioning, Navigation, and Timing, asked the Administrator of the National Telecommunications and Information Administration (NTIA) to advise the Federal Communications Commission (FCC) to continue to withhold authorisation for LightSquared to commence commercial service per its proposed deployment of a terrestrial service within the 1525–1559 MHz bands. LightSquared’s proposal is to deploy a network of 40,000 base stations along with some satellite coverage over 139 major markets in the US.
In a letter to the Administrator of the NTIA, the Departments clarified their position on the proposal of LightSquared Subsidiary LLC to operate a nationwide broadband service within the spectrum immediately adjacent to the GPS signals.
The Departments’ position follows an interagency review of the findings of the National Space-Based Positioning, Navigation, and Timing Systems Engineering Forum (NPEF), which was tasked to assess the GPS impacts of LightSquared’s deployment plan as originally filed. The NPEF determined that, if permitted to operate as originally planned, LightSquared’s signals would significantly interfere with GPS users and, as a result, impact national security, economic security, and public safety nationwide.
The Departments continue to support the National Broadband Plan, but cannot do so at the expense of a global, ubiquitous utility such as the GPS. The Departments encourage further assessment of any alternative spectrum and/or signal configuration plans.
Source: www.pnt.gov