Re: [gpsd-users] STATUS_DGPS_FIX mystery

[Gary E. Miller]

Yo Eric!

On Thu, 21 Jan 2016 17:36:02 -0500
"Eric S. Raymond" <address@hidden> wrote:

> > Eric, any reason for this commit?  Looks like a step backwards.  I
> > would like STATUS_DGPS_FIX restored.  
> 
> Why? What you really want to know in practuce is the XYZ %95 error ,
> no?

As a matter of principal, I just hate to throw away any data.

> I took this out because some devices don't report that status.

Rush to the least common denominator?  I hope not.

>  But we
> can get 95% error ranges ever time from a comptation on the skyview.

But the CEP(95) will differ with the same skyview depending on whether
you have DGPS data ni use or not.  Improvement by somewhat more than a
factor of 2.  Does the current computation allow for that?  And just
because the GPS a WAAS bird in the skyview does not mean it has the
correction data downloaded and in use yet.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

pgplkBNjxaS9J.pgp
Description: OpenPGP digital signature