[Xastir-dev] Position accuracy

[Curt Mills, WE7U]

On Sun, 7 Dec 2003, Gerry Creager N5JXS wrote:

> The compressed positions with resolution of 1 foot are really
> misrepresentations.  Bob B.'s said this, and I've actually agreed with
> him, although not always for the same reasons he stated.

Care to elaborate?  What is the resolution (roughly) that one can
expect from the compressed protocol?  I know it's much better than
the normal APRS position resolution.


> When you're entering data for a position, it's considered good practice
> in the geodetic surveying community to enter the coordinates as
> precisely and accurately as possible.  That way, if there's a subsequent
> loss of precision, it's not for want of good initial data.

Kind of like getting the best possible S/N ratio at the initial
injection point of the signal into the receiver...  Garbage in,
Garbage out.

-- 
Curt Mills, WE7U                    hacker_NO_SPAM_ at tc.fluke.com
Senior Methods Engineer/SysAdmin
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