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

[Stanley Stanukinos]

Tom, I do not have a weather station yet but have been following the thread. Is there a way to put a switch in Xastir to specify what weather station you are using so the data would be correct or would doing it at compile time be a solution. I am not a code weighted so I do not know how difficult it wod be to implement. 


Stan

Sent from my iPhone

On Sep 4, 2012, at 6:01 PM, Tom Russo <russo at bogodyn.org> wrote:

> On Fri, Aug 31, 2012 at 05:46:39PM -0600, we recorded a bogon-computron collision of the <russo at bogodyn.org> flavor, containing:
>> Davis/Meteo and LaCrosse users:
> 
> Please read if you use Davis weather stations with Meteo and db2APRS, or
> LaCrosse weather stations with open2300 and open2300db2APRS.
> 
>> I have once again hacked on Xastir's weather station code for Davis (with Meteo)
>> and LaCrosse weather stations.  My latest commit changes Xastir *AND* the
>> "db2APRS" and "open2300db2APRS" support programs.
>> 
> [...]
>> 
>> This new commit adds Total Rain to the output of the two database programs,
>> and adds parsing code to the DAVISMETEO code block to handle it.  It also
>> adds computation of rain-since-midnight for LaCrosse stations, because those
>> stations don't provide the information.
> 
> I should point out that as of the aforementioned commit, the output of
> the two database programs is no longer a valid APRS weather report, as it
> now contains an extra field "Txxxx" for total rain since weather station reset
> (in 100ths of an inch).  That is OK as long as only Xastir is using those 
> programs, because Xastir does not simply retransmit the data from these 
> daemons, it parses them, extracts the information, then re-assembles its own 
> weather report.  Xastir likes to have the total rain around, and does some
> computations from it if other information is missing from the station's report.
> 
> I have heard from one user who was using db2APRS to feed a Wx Underground
> script at a higher rate than is acceptable on APRS.  He needed to modify those
> scripts to remove the additional data that Xastir's db2APRS program  now
> provides.
> 
> I made my modification on the assumption that users of the db2APRS or
> open2300db2APRS daemons supplied with Xastir are using them only to feed
> weather data to Xastir.   It had not occured to me that there would be a use
> case where folks might be feeding this data to something else that expects
> rigid adherence to APRS WX report specs.  If this is a common use case, I will
> need to rethink how to implement passing "total rain" information from these
> programs to Xastir.  If it's unusual, then we can pass on the need to rethink
> things to those who are using the codes for unusual purposes.
> 
> So far, the responses to my requests about the Davis and LaCrosse daemons has
> been underwhelming --- it looks either like few people are using Xastir with
> these weather daemons, few people care one way or another whether they work,
> or all the WX stations that run Xastir are owned by people who don't subscribe
> to these lists.
> 
> If you're using Xastir and either db2APRS (Davis with Meteo) or open2300db2APRS 
> (LaCrosse with the open2300 library), and you are ALSO using these daemon 
> programs with some other program that is using the output and expecting it to
> be valid APRS wx reports, please contact me privately (if you have not already
> emailed me).  Otherwise, I'll assume that the use cases for db2APRS outside of
> Xastir are rare, and can be dealt with by some other means than by my hacking
> db2APRS yet again.
> 
> -- 
> 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
> 
> _______________________________________________
> Xastir mailing list
> Xastir at lists.xastir.org
> http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir