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

[Tom Russo]

On Sat, Aug 18, 2012 at 05:57:51AM -0700, we recorded a bogon-computron collision of the <warpedspeed1 at yahoo.com> flavor, containing:
> 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.? 

Well, really the problem is that Xastir, until this change, was gathering
only ONE rain number from the Davis stations, using that number as if it were
"total rain since station was reset" and then using that number to compute
the 24-hour rain, rain-since-midnight, and last-hour rain.  It was ignoring
the rain-since-midnight, and last-hour rain that the station 
was providing itself, and incorrectly using the 24-hour number from the station
as if it were the "total rain since reset."  

This leads to some incorrect behavior over time, and is silly since the
station itself is reporting all three 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.? 

This change will have no impact on that sort of thing.  These could all be due 
to differences in siting and installation of rain gauges.

> 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? 

Nope.  Xastir does nothing with the time from the weather station.

-- 
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