Hi Christopher,
Interesting. I was going by information related to me by Humanware and the
Kaptain, who make GPS receivers for the blind and visually impaired. Thank
you for the clarification. Terry
----- Original Message -----
From: "Christopher Chaltain" <chalt...@gmail.com>
To: <viphone@googlegroups.com>
Sent: Monday, June 08, 2015 8:16 PM
Subject: Re: Question About GLPS
It's true that most devices will only give you about 15 meters of
accuracy, but this isn't because the earth and satellites are in motion.
This has to do with time keeping, transmission/reception speeds and
atmospheric interference. FAA class GPS systems give accuracy to 3.5
meters at present and future systems will provide even better accuracy,
and they're all still using the earth and satellites. Google can provide
more information, but here's one article that fairly readable
http://www.mio.com/technology-gps-accuracy.htm
On 06/08/2015 01:34 PM, Terry-Ann Saurmann wrote:
Since the earth, as well as the satellites on which the GPS information
is dependent, are all in constant motion, a destination cannot be
exact. For this reason, the accuracy of a destination point is
approximately thirty feet, regardless of the GPS program being used. Terry
----- Original Message -----
*From:* Richard Petty <mailto:richard.pe...@earthlink.net>
*To:* viphone@googlegroups.com <mailto:viphone@googlegroups.com>
*Sent:* Monday, June 08, 2015 12:02 PM
*Subject:* RE: Question About GLPS
Often when I ride in a taxi I overhear the driver’s GPS. Their GPSs,
Tom Tom, Garmin and the like, seem to have about the same accuracy
as the iPhone apps. Meaning, they too can be off several addresses.
It’s more likely than not that the destination is announced before
the address is actually reached. I’ve had pretty much the same
experience with several iPhone apps.
Richard
richard.pe...@earthlink.net
<mailto:richard.pe...@earthlink.net>713-529-4476
*From:*viphone@googlegroups.com [mailto:viphone@googlegroups.com]
*On Behalf Of *Vincent Thacker
*Sent:* Monday, June 08, 2015 10:08 AM
*To:* viphone@googlegroups.com
*Subject:* Re: Question About GLPS
Quite often, I am told that I'm 2 or 3 doors away from where I
actually am. It's not just the iphone that's given me these slightly
off results either. I've accepted it as inherent inaccuracy in GPS.
Mind you, I have sometimes been indoors when I've got these results,
so it may be a bit unfair to judge anything like that.
Vince.
========================================
Message Received: Jun 08 2015, 02:25 PM
From: "Woody Anna Dresner"
To: viphone@googlegroups.com
Cc:
Subject: Re: Question About GLPS
Hello,
GPS accuracy varies depending on how clear a view of the sky you
have. So if you're in a vehicle, you can often improve accuracy
by putting your device near a window. On the street, there's not
much you can do. The weather can affect accuracy, for instance.
So maybe you'll get a better signal another day.
Best,
Anna
On Jun 7, 2015, at 2:57 PM, clarence carter
<clcar...@verizon.net <mailto:clcar...@verizon.net>> wrote:
I am having difficulties getting accurate readings from the
GPS. For example when I use DARK SKY it gives the location
as three doors from where I am. I also notice this with
other APs.
Is there a way to reinstall the GPS software without
destroying other settings?
Thanks!
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