[wxqc] Discussion of weather data quality issues

[djeerings at tampabay.rr.com]

Gentlemen
I have passed the Davis data information on to Byonics (weather trak) and several others. The download is many many pages, but the gist of the situation is that Davis uses standard ASCII codes that can be programmed to all the standard baud rates. A computer  programmed as a "Dumb Terminal" can be used to view the codes. Davis uses a two way communication with a lot of control codes but these are not required for TNC units.  Third party WD display does well with the Davis Pro II system.
Don Jeerings  KI4EFL  CW4013 


----- Original Message ----- 
From: Thomas Giella KN4LF <kn4lf at earthlink.net> 
Date: Tuesday, June 12, 2007 11:25 am 
Subject: Re: [wxqc] Discussion of weather data quality issues 
To: a WXQC e-List <wxqc at lists.gladstonefamily.net> 

> Keith that is good news to my friend Don Jeerings and I concerning 
> Davis 
> releasing the third party use of it's data format. When did this 
> happen? We 
> have not found any third party vendors that are aware that the 
> information 
> is now available. 
> 
> In 2004 Don and I suffered power failures from the seven 
> hurricanes that 
> struck the state. We had back up generators that kept our 
> computers and 
> broadband cable modems up for data upload to the Internet BUT 
> there were 
> power failures elsewhere in the region that took our broadband 
> cable access 
> down. 
> 
> As Don and I are ham radio operators we looked into VHF radio 
> transmission 
> of our weather observation data to the WWW via APRS during weather 
> emergencies and discovered that their were no third party TNC's 
> available 
> that would allow us to interface our Davis VP2's to our VHF 
> transceivers. 
> A fellow ham radio operator and weather station enthusiast that 
> knows more 
> about the issue than Don and I, verified that Davis had not 
> released the 
> information into the public domain. Thanks for the link I will 
> have to pass 
> on the information via the link that you provided. 
> 
> http://www.davisnet.com/support/weather/download/Vantage%20Serial%20Protocol%20Docs%20v2.1.0.zip 
> 
> Take Care, 
> Thomas Giella, KN4LF 
> Retired Meteorologist 
> Lakeland, FL, USA 
> kn4lf at earthlink.net 
> 
> Lakeland, Florida Daily Climatological Weather Data Archive: 
> http://www.kn4lf.com/kn4lf22.htm 
> Lakeland, Florida Real Time Weather Observations: 
> http://www.kn4lf.com/index1.html 
> FL & US Raw Weather Forecasting Resource Links: 
> http://www.kn4lf.com/kn4lf13.htm 
> New Scientific Evidence for the Existence of God: 
> http://www.cosmicfingerprints.com/audio/newevidence.htm 
> 
> Date: Tue, 12 Jun 2007 01:18:30 -0400 
> From: Keith Miller <kdmiller at oldsgmail.com> 
> Subject: Re: [wxqc] Pole for wind gauge 
> To: 'Discussion of weather data quality issues' 
> <wxqc at lists.gladstonefamily.net> 
> [mailto:wxqc-bounces at lists.gladstonefamily.net]On Behalf Of Don 
> Jeerings 
> Sent: Tuesday, June 12, 2007 12:08 AM 
> To: Discussion of weather data quality issues 
> Subject: Re: [wxqc] Pole for wind gauge 
> 
> >Ron.. I have had a bad disappointment with the Davis. In 
> >times of storm, the power often goes off and your station 
> >cannot communicate to NWS. 
> 
> That is an issue beyond the control of Davis, or any other 
> supplier. 
> 
> > This is when it is most needed. There are radio links 
> > available for wireless transmission (Amateur radio links) 
> > but Davis will not release any of the format information 
> > for a third party operation. 
> 
> I beg to disagree, Davis has published their data format 
> so any 3rd party can make use of it: 
> http://www.davisnet.com/support/weather/download/Vantage%20Serial%20Pr 
> otocol%20Docs%20v2.1.0.zip 
> If this weren't the case, there wouldn't be so many 3rd party 
> applications that supported it. If you're trying to get the 
> data to a TNC, that should be a minor issue. 
> 
> Keith 
> -- 
> CW5250 => http://weather.stadhaugh.com 
> 
> 
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