201105 May/June 2011 Archives - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

201105 May/June 2011

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A Target — Possibly Moving

Up here in the beautiful Pacific Northwest — yes, the sun is shining; hence, my enthusiasm — we have a wealth of wildlife. It goes nicely with the splendid landscape.

We have birds of all songs and colors. (Migratory Western tanagers passing through right now.) A selection of bears, mountain lions, the occasional wildcat. A surfeit of deer. 

Even buffalo and grey wolves are making their comeback.

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By Inside GNSS
May 19, 2011

Homeland Security Steps Up to Protect GPS (But Not from LightSquared)

After a long series of fits and starts, the Department of Homeland Security is tackling the issue of interference to the GPS signal. The agency has launched a study to assess the risks to GPS service from a variety of sources — a study that, at least on paper, will lead to a plan to mitigate interference.

Unfortunately, the effort will not directly address the one potential problem consuming the thoughts of the GPS community — widespread receiver overload from the high-powered mobile broadband service proposed by the Virginia firm LightSquared.

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By Dee Ann Divis