On 4 June 2013 08:02, Nick Whitelegg <nick.whitel...@solent.ac.uk> wrote:
>
> I've heard GPS jamming equipment can be a problem, could it be an army
> exercise of some sort which stopped around sunset?
>

Unlikely an army exercise...
Those are published here:
http://stakeholders.ofcom.org.uk/spectrum/gps-jamming-exercises/

I've had it before where the GPS receiver's ephemeris data has becomes
corrupt/invalid and the unit needed a cold restart so that it could
reload it.

/ Grant

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