[aprssig] Standardized format of WX data in APRS?

spam8mybrain spam8mybrain at yahoo.com
Thu Feb 16 16:53:16 EST 2017

Regarding YAAC, it understands all three of the proprietary PeetBros formats, but does not transmit them. Rather, it converts them to APRS-standard format and appends them to the beacon message (if the station symbol code is the _ character), or transmits a positionless weather message immediately after the position beacon message if the symbol code is not the _ character. This is because weather data is only understood in a position report if the symbol code states this is a weather station; otherwise, it is ignored by most APRS consumers.
YAAC also supports the WXNOW.TXT file interface available with the software for other brands of weather stations. This is translated as described above for transmitting locally originated weather reports.
I can't speak for other software authors as to what they support.
Andrew, KA2DDOauthor of YAAC

-------- Original message --------
From: Miroslav Skoric <skoric at uns.ac.rs> 
Date: 2/16/17  1:18 PM  (GMT-05:00) 
To: aprssig at tapr.org 
Subject: Re: [aprssig] Standardized format of WX data in APRS? 

On 02/13/2017 01:11 AM, spam8mybrain wrote:

> There are 3 more or less standard on-air formats:
> Weather instruments using any other format must be translated to one of these formats before transmitting on APRS.
> Hope that helps.
> Andrew , KA2DDOauthor of YAAC

Thank you. Now I wonder how to recognize which of those 3 formats are 
used by a particular manufacturer. (Probably I am not going to purchase 
from Davis or Peet Bros, but rather something cheaper from European or 
Asian markets, and need to know what feature to look for, and what to 
ask the producer.) Secondly, if a format needs to be translated to one 
of those 3, is that a big issue for an APRS software author? Any view 
from YAAC?

Misko YT7MPB

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