Any Known East Coast USA GPS Problems?

Robert, thanks. That's about the time frame most of us near
Philadelphia saw the problems, too. However, I saw it last Tuesday, as
well.

Jim, that's the site I cited and is how I know Pawtuxet River was
doing GPS interference. I cited it because while I thought Pawtuxet
was too far from me for concern, I didn't know if it really could
interfere with my signal reception. They cite a 35 nm radius around
Pawtuxet. Not sure I agree with you that it's useful, since it caused
me and others problems on a good soaring day...

-John

On Jun 9, 12:06 pm, wrote:
John
I had similar problems while flying in The Pacific Northwest. There is
a number of distinct spikes in the trace because of lost GPS signal
from the satellite. It happened couple of weeks ago.

Robert, OR

On Jun 9, 1:04 pm, JS wrote:
Click on GPS Testing Notices. It opens a pdf file.
Pawtuxet is one of several sites doing this useful service. As are
China Lake, Fallon, Nellis, White Sands...
Jim

On Jun 9, 6:01 pm, jcarlyle wrote:
Jim,
..... Not sure I agree with you that it's useful, since it caused
me and others problems on a good soaring day...
-John

Last year's jamming out of China Lake didn't seem to be hurting
people near Minden, while I had dead spots further South. Mountains
can get in the way. The Appalachians would only have done that in past
eons.
It's interesting to view the jammed log in SeeYou or similar
afterwards. The glider goes up and down like a helicopter in one
place, then shoots to the position at the end of the jam at Mach.
Pressure altitude is always recorded, but it's unfortunate if your
turn point is rounded during a useful blackout test. Get out the old
cameras!
Apologies: There will always be an exception, but my praise for
authorities is best taken as sarcasm!
Jim