GPS wrong longitude

[Helge Hafting]

Robin Paulson wrote:
> 2009/1/9 Nicolas Laurance <nlaurance at zindep.com>:
>> screenshot2
>>
> 
> you're not locked on to any satellites
> 
> the numbers at the bottom-left of the screen, (12/0) say the gps can
> see 12, and is locked on to 0 - it needs to lock on to 4 or 5 minimum
> to get a fix
> 
Actually, you get a fix even with 3 satellites - using the
approximate assumption that your elevation is zero or "same as last 
time". Accuracy is not good, unless the assumption holds.

Helge Hafting