Paul kgyy wrote:
I have a PDA-based XM weather process that spontaneously de-activates
periodically (and of course I don't find out until I fire up the
receiver in the airplane).

Are any 396/496 users having this problem?

What about Flight Cheetah users?

This disscussion has been had here with with 3/496s. IIRC it had to do with
the lack of reauthorization when the GPS had been out of the sattelite's
view for a while. I had assumed it had been cleared up because there hasn't
been a post about it for quite some time.

Is your PDA allowed to go to zero charge during it's down time? If so it
might be forgetting that it was authorized.