[Xastir] More info - xastir v. gpsd / direct

Richard E. Polivka r.polivka at sbcglobal.net
Fri May 20 07:32:48 EDT 2005


We may have a winner here - at least a good solid comparison.

This is a sentence from decode_gps_gga with data from gpsd:
$GPGGA,110413,4301.1515,N,8803.0402,W,3,05,6.80,230.6,M,-34.460,M,,*7B

This is a sentence from decode_gps_gga with data direct from 
/dev/ttyUSB0 w/o gpsd:
$GPGGA,003501.903,4301.1474,N,08803.0363,W,1,04,1.9,204.4,M,-34.2,M,0.0,0000*4E

gpsd is breaking my location. I still indicate 180 W. My previous post 
was in error for I forgot
to restart xastir after changing sources and making sure that gpsd is 
unloaded when not using it.

I believe that this issue is with gpsd and not xastir. Reasoning: 1) 
gpsd does not show decimal seconds (would be nice for clock setting); 2) 
the last two fields (DGPS info) is null filled in gpsd output and zero 
filled in when I go direct to /dev/ttyUSB0.

Now, of course, there could other reasons, as to the code that grabs the 
data from either source, but I would doubt it.

I still have not applied Curt's changes in CVS to util.c to come up with 
this, so I am at v 1.5.

Now for my morning coffee and off to work.

73,

-- 

---
Richard E. Polivka, N6NKO

*** Never meddle in the affairs of wizards, for they
*** are easily angered, and you are crunchy and taste
*** good with lemon sauce.





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