On Mon, 19 Jul 2010 11:48:28 -0800, Bruce in alaska
wrote:

Just about ANY Military Nuclear Site in the USA. Most of the FEMA
Bunkers. Most of the SAC Bases have that capability, but only test it
unless at DefCon 2 or higher. White House & Capitol Building, depending
on the immediate Threat Level. Places like that here in this country.
Overseas, Many of the National Parliament buildings, and Presidential
Palaces, and major Military installations, and places like that. Global
means Global Coverage from the Sky, not global coverage on the Ground
when local Jammers are active. This isn't Rocket Science, and many
Militaries around the world can, and do Jam the Civilian Datastreams,
within their boarders. The P-Code & Military Datastreams, are a lot more
resistant to such Jamming.

Good information. Do you have an estimate of how far offshore a local
jamming effort might extend?