[Xastir] Davis, Lacrosse weather code modified, need testers.

[Dean Groe]

Sorry, I know that I had volunteered to help, but I have been kind of completely swamped. 

So if I understand the problem correctly, we are trying to address the discrepancies in the four rain categories collected by Xastir.  

I have noticed that there is often a few hundredths of an inch difference one way or another in the numbers.  

Here it is not unusual for two spots a mile a way from each other, or even less, to have differences in rain totals between .5 and an inch, so I guess that we do not split hairs over a few hundredths with our own numbers.  


I have also noticed that my Davis Vantage Pro does not do a good job of keeping time.  In fact right now, it is almost an hour off and I need to adjust it again.  Maybe that is part of the discrepancy problem? 


So time permitting this weekend, I will try to do a CVS update and see what happens. 

 
Dean  KD4TWJ 
 




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>Message: 1
>Date: Mon, 13 Aug 2012 11:27:18 -0600
>From: Tom Russo <russo at bogodyn.org>
>To: Xastir - APRS client software discussion <xastir at lists.xastir.org>
>Subject: [Xastir] Davis, Lacrosse weather code modified, need testers.
>Message-ID: <20120813172718.GA4397 at bogodyn.org>
>Content-Type: text/plain; charset=us-ascii
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>On Sat, Aug 04, 2012 at 02:46:52PM -0600, we recorded a bogon-computron collision of the <russo at bogodyn.org> flavor, containing:
>> What I'm thinking is that the Meteo (and LaCrosse) code should be modified
>> to emit the total rain (so Xastir can display total rain), but that 
>> Meteo/Lacrosse and Davis APRS Data Logger code should be modified so that 
>> Xastir uses th 24-hour, since-midnight, and 1-hour data the station provides
>> directly without overwriting it.  I don't even think it will be that much work,
>> just a matter of maintaining a flag that says "the data in these strings
>> should not be recomputed."
>
>I have just committed a change to wx.c and database.h that should fix the
>transmission of incorrect rain rates by Xastir when using Davis or LaCrosse
>weather stations.
>
>Rather than modifying the db2aprs programs (Davis Meteo and Lacrosse), I have
>taken the approach that since db2aprs (and the Lacrosse version) already 
>provides 24-hour and last-hour rain data, that Xastir should not overwrite
>these.  Further, I have set the code up so that Davis APRS Data Logger
>rain rates are used directly, instead of being overwritten with incorrectly
>computed values.  
>
>I have already sent this change in private email to Mike, but ask that all
>Xastir users that have weather stations do a CVS update and check that I have
>not broken Xastir's handling of their own weather station (this change is
>supposed to have ZERO impact on stations other than Davis or Lacrosse).
>
>Mike, you needn't bother applying the patch I sent you if you just do a 
>CVS update, as I already committed the change. 
>
>-- 
>Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
>Tijeras, NM  QRPL#1592 K2#398  SOC#236        http://kevan.org/brain.cgi?DDTNM
>"And, isn't sanity really just a one-trick pony anyway? I mean all you get is
>one trick, rational thinking, but when you're good and crazy, oooh, oooh,
>oooh, the sky is the limit!"  --- The Tick
>
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