[Loadstone] How can i find out how accurate my receiver is?

Ari Moisio arimo at iki.fi
Tue Nov 18 15:39:53 GMT 2008

HI Simon

  To get some idea of gps accuracy to the following:

- select a stationary landmark you can find easily.

- Store this landmark's location several times waiting   for example few 
hours between the measurements.  I make ususally about 20 measurements 
within few days.

- After storing all the measurements  use LS show area feature to find the 
approximate center point of these measurements.  This could be done for 
example counting how many measuremest are to north from some of the 
refrence point and how many are south. If there are more  measured points 
at north  move virtually to the nearest point northward until there is 
approximately equal number of points at each side. Repeat this procedure 
with east/west.

- After finding the central point  you can look for radius where 90 
percent of the points will fit. This should give you  quite good 
estimation what kind of accuracy you can expect.

  To compare different receivers repeat the measurement phase  for every 
receiver and look for new center point.

mr. M01510 & guide Loadstone-GPS

On Tue, 18 Nov 2008, simon.eigeldinger at vol.at wrote:

> Hi all,
> I have a navilock receiver.
> How can i find out how good it is?
> I just know it has a sirf III chip in it.
> Greetings,
> simon
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> Loadstone at loadstone-gps.com
> http://www.loadstone-gps.com/mailman/listinfo/loadstone

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