[ntp:questions] TrueTime XL-AK GPS lock satellite take too much time.....

Victor fanchao.lyu at gmail.com
Fri Apr 25 17:37:23 UTC 2014


On Friday, April 25, 2014 1:00:00 PM UTC-4, Jochen Bern wrote:
> [First reply to a MIME digest, hope the In-Reply-To doesn't end up as
> 
> broken as the timestamp in the following line :-C ]
> 
> 
> 
> On -10.01.-28163 20:59, Victor wrote:
> 
> > when I first start the system, it only take about 10 minutes to lock
> 
> > satellites. [...] But the second time I move to another place (about
> 
> > 40 miles away from the first place), it never lock any satellites again..
> 
> 
> 
> 40 miles PARALLEL TO PLANET SURFACE :-} shouldn't make much of a
> 
> difference in general sat signal irradiation. You might want to
> 
> doublecheck, though:
> 
> 
> 
> http://satpredictor.navcomtech.com/
> 
> 
> 
> Do you have any information whether the signals that the device receives
> 
> (post building-induced interference, nearby machinery, coax cable kinked
> 
> while moving, ...) have actually gotten *weaker*, rather than "same, but
> 
> just won't lock"?
> 
> 
> 
> Regards,
> 
> 								J. Bern
> 
> -- 
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Hi J,

Thank you for your reply.
Definitely, I do not think 40 miles would be a big problem.
I turn on the GPS receiver at the first place, and it worked well. Then I turned it off, and move to the new place next day, it never locked any satellites again. Big problem...

Best,
Victor



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