[Loadstone] No Signal and Signal Acquired transitions.

Ari Moisio arimo at netsonic.fi
Sat Aug 11 08:39:23 BST 2007


Hi

  As far i have noticed acquisition t time depend mostly  visibility of 
clear sky and  how long time has passed from previous usage of same 
receiver.

  Usually in vehicles receiver can see only half of the sky and there is 
more attenuation and interference.


You can still escape from the Gates of hell: Use Linux!
-- 
mr. arimo
http://arimo.iki.fi/pub/lomaradio


On Fri, 10 Aug 2007, Charlie Richardson wrote:

> Well, this explains something.  I noticed a few times that if I turn on my
> receiver while in motion it does take several minutes before acquiring a
> signal.  But in the morning just before leaving the house I turn on the
> receiver and get to the bus stop and then load the software and usually get
> a signal immediately.
>
> Is it coincidence or a fact that GPS receivers don't acquire a signal if
> trying in motion.
>
> ----- Original Message -----
> From: "Shane" <shane at cm.nu>
> To: <loadstone at loadstone-gps.com>
> Sent: Friday, August 10, 2007 6:48 PM
> Subject: Re: [Loadstone] No Signal and Signal Acquired transitions.
>
>
>> Hello,
>>
>> On Fri, Aug 10, 2007 at 09:51:50PM +1200, David Allen wrote:
>>> Well, Shawn got my attention, when he commented that he always has a
>>> signal
>>> with a good receiver. I'm wondering where I went wrong. I have the
>>> Globalsat
>>> BT338, which I chose primarily because the info at the Loadstone web site
>>> said it was more sensitive. And while our insulation isn't bad, I often
>>> have
>>> no signal for several minutes even if I'm outside, and of course, it is
>>> full
>>
>> The globalsat BT338 is certainly a respectable unit and
>> shouldn't be losing signal for minutes at a time.  Did you
>> get a good acquisition by remaining stationary for a couple
>> minutes when the unit is first powered on.  That is, I've
>> found most receivers can't acquire too well whilst in
>> motion but once a good signal is obtained, you should be
>> able to keep it through most things.
>>
>> Shane
>>
>> --
>> http://www.cm.nu/~shane/
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>>
>
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