[aprssig] NMEA and WX stations

[Tom Russo]

On Thu, Dec 21, 2017 at 08:23:20PM +0100, we recorded a bogon-computron collision of the <skoric at uns.ac.rs> flavor, containing:
> On 12/15/2017 01:26 PM, Lynn W. Deffenbaugh (Mr) wrote:
> 
> > The most convenient and broadest supported weather information 
> > interchange that is APRS compatible is the wxnow.txt file.?? If your 
> > weather station (or 3rd party) software can generate this file, most 
> > APRS clients can pick it up and beacon weather.
> > 
> > Some software supports various native weather station protocols, but I 
> > cannot enumerate them personally.
> > 
> > Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> > 
> > PS.?? See also http://aprsisce.wikidot.com/doc:weather-stations and 
> > http://wiki.sandaysoft.com/a/Wxnow.txt
> > 
> 
> Lynn, others ...
> 
> I have checked those links. As I understood, at first wxnow.txt file 
> must be created. And it will only contain these 2 lines after the 
> weather monitoring starts for the first time. So it only contains one 
> data set. And if I want to get permanently updated data, does a new file 
> has to be created with every new data? Or is the file permanently 
> overwritten? Or is the new data appended?

The file is updated so that at any given time it contains 2 lines.

One program that uses the format has some decent documentation:

http://wiki.sandaysoft.com/a/Wxnow.txt

-- 
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236        http://kevan.org/brain.cgi?DDTNM
 echo "prpv_a'rfg_cnf_har_cvcr" | sed -e 's/_/ /g' | tr [a-m][n-z] [n-z][a-m]