I was flying up the center of MI toward Mackinac Island (sp?) several years
ago with my KLN90B GPS when it also went crazy--told me I was flying toward
Cuba, then California, then.... Landed on the Island following VOR
navigation and the pilot in the Mooney just ahead of me reported the same
thing with his GPS. I think there is something, military or otherwise,
fouling the signals intermittently in that area. Interestingly, when I left
and flew south 3 days later, all worked normally.

Douglas W. Johnson, MD PA



"I live in Northern Lower Mi. Based at a Joint civil military base. Today I
flew across to the west side of the state. Lost both 430 and 396 signals.
All the way over and most of the way back! Could not even use the VOR in the
430! Froze with a big yellow caution sign! Called Garmin, first question
they ask- Are you near any military installations? Hmm! Anybody else have
similar experiences? I really don't think it is my system.  Don Grabiel"