On Mon, 03 Sep 2007 02:35:32 GMT, "Travis Marlatte"
wrote in
:

I can't imagine that this hasn't been discussed but I didn't find anything
in my search. I've been ignoring it since it specifically says "NON CIVILIAN
GPS." But, this just seems so weird.

!GPS 04/036 ZAU NON CIVILIAN GPS MAY BE UNREL OR UNAVBL WITHIN A
240 NM RADIUS OF 420153N/913847W AT FL400 WEF 0704250001-0712312359

That's April 25 through the end of the year, right? Non Civillian. FL400? No
higher. No lower. No block altitude.

That does seem strange indeed.

The lat/long is somewhere around Cedar Rapids, IA, right?

It sure looks like it: http://skyvector.com/#25-13-2-1990-2992
https://www.notams.jcs.mil/distribution/printQuery.html

A disk with a radius of 240 NM has an area of 180,979.2 nautical miles
square. It's huge.

That's that all about?

War games? Jamming testing? Because it's localized over Cedar
Rapids, it's not a fault of the satellite system. I guess you could
inquire with KZKC KANSAS CITY (ARTCC),KS