[gps-talkusers] Re: It's official: my GPS is insane

Alex.
I can not stress enough the importance of the satellite quality, poor, fair,
good, and very good.  The number of satellites is not indicative of the
quality.  For example you may have 7 satellites with poor quality and the
accuracy could be 1,000 feet on the other hand you could have 5 satellites
with quality of very good and have an accuracy of 15 feet.  What you are
describing is not the normal accuracy.  The next time you feel that the gps
reading is not correct could you provide the following information.

The latitude and longitude reading of the GPS by using the "Y" command.
Please take this reading at a intersection.

The number and quality of satellites.

The intersection name, city, state and zip.      

If you could email me this information off list or give me a phone call I
will see what we can determine. 

Carl Simmons
Sendero Group Training and Technical Support
1-888-757-6810 Ext. 106
carl@xxxxxxxxxxxxxxxx

-----Original Message-----
From: gps-talkusers-bounce@xxxxxxxxxxxxx
[mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Alex Parks
Sent: Thursday, February 16, 2006 4:04 PM
To: Gps List
Subject: [gps-talkusers] It's official: my GPS is insane

To all:

I finally was able to use my GPS for route creation and following 
today (it got up to FIFTY DEGREES!!!!!!) I created a simple 
route: go down a street, passing another street on the right, 
then turn right at the next street.  Take the next left turn, the 
next right, then the next left again.  My GPS first told me that 
I had to turn left on the street I was supposed to pass--if I had 
listened, I would have crossed a busy street into an empty, muddy 
plot of land.  I kept going straight, and was told the rest of 
the turns correctly, if not rather inaccurately.  I then plotted 
a second route from where I was back to my house (I had not 
started from my house the first time, so the route would be 
different).  I was told to take a left onto a street, and that 
was correct.  At the intersection, though, I was told to turn 
left at two streets, the names of which were not even close to 
correct.  (The streets it told me I was approaching were the next 
street over and I was going ninety degrees in the wrong direction 
to have taken the turn it wanted me to take).  I finally got 
going, and, after it skipped announcing two streets, it told me 
to turn right.  (Correct, but too early).

It seems as though the GPS thought I was a street over and going 
in the wrong direction, until the final street which it announced 
correctly.  It also told me, about fifty yards inaccurately, that 
I had "arrived near destination".

Through the whole adventure, I had between 4 and 9 satellites, 
almost never as low as four.  I was disappointed that my system 
didn't function correctly, but maybe this is a software thing 
with KS 7 on MPowers.  I hope my receiver will not have to be 
replaced, but, if it does, now would be the time as the 
temperature is supposed to drop back into the twenties and below.  
Yes sir, just a standard Maine winter.

Thanks, and have a great day,
Alex

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