On Jan 17, 9:28 am, Marc Ramsey wrote:
Bill Daniels wrote:
It seems as if GPS interference testing is becoming more widespread.

As Marc noted, China Lake have been conducting these tests for a
while. It started out mostly on weekdays, bur Saturdays are possible
too.
Several of us have logged flights with holes in them, some quite
large. It does not put a hole in the pressure altitude trace, but may
eliminate your turnpoint. That's the only concern.
One flight last year I was able to campare notes with pilots flying
out of Minden, while I was just North of China Lake. The Minden pilots
had no interference, but my signal was really broken up. The Cambridge
gear seemed to come online rapidly afterwards, but WinPilot had to be
restarted to give me any useful information (I knew the winds were not
at 80 or 90 knots for example)
Watching these logs on SeeYou is interesting. The glider stops,
hovers up and down for a while, then shoots forward 5 miles or so.
Jim