"Roger Halstead" wrote in message
...
| On Sun, 1 Feb 2004 16:31:42 -0800, "C J Campbell"
| wrote:
|
|
| "David" wrote in message
| .. .
| | I have just returned from USA and find my Flightmate Pro GPS has lost
| | all User Defined Waypoints. I thought it would be safest to carry in
| | hand luggage, which I've done in the past without a problem. The GPS
| | must have gone through the X-rays about 9 times.
| |
|
| It could in theory be wiped by X-rays, but it is unlikely. More likely
your
| memory was wiped by magnetic interference from the electric motor on the
| conveyer belt taking your GPS through the X-ray machine. These motors are
| notorious for erasing the memories of all kinds of electronic equipment.
| Metal detectors will damage your electronic equipment, too.
| I would doubt the motor would cause much problem as the memory in the
| GPS is not magnetic like a Hard drive.

Really? I thought that it was like the memory in a PDA -- and those do get
erased by metal detectors and electric motors.