[aprssig] Packet Interpretation - Wind or Motion

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Fri Aug 14 10:02:12 EDT 2009


Thank you Pierre, for researching this and getting ti clarified.  I'm 
just about to write my weather data interpreter for my APRS-IS client 
for Windows Mobile. Just in time!

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile

Pierre Thibaudeau wrote:
> Today, 08:59 -0400, Robert Bruninga wrote:
>
>   
>>    Pierre,
>>    
>>    It appears you have found a conflict in the spec.  I do remember
>>    (I think) that the intention was (from the WX guys) that we do
>>    speed in MPH.  So if there is a conflict, I think MPH wins.  It
>>    used to be that I woiuld rely on Dale Heatherington to weigh in
>>    on these topics, but I'm not sure he is around anymore.
>>    
>>    Since this comes up every few years, I would think that this is
>>    addressed in the APRS11 addendum aprs.org/aprs11.html.  If you
>>    cannot find it there, then we can add it.
>>     
>
> Thank you for your reply Bob,
>
> Did not see anything relating to this in aprs11.html nor in aprs12.html. 
> Here is the closest it get in aprs11/spex-wx.txt:
>
>   s = sustained one-minute wind speed in mph. <in positionless format only>
>
> but nothing about the speed unit in DIR/SPD.
>
> Will you make sure that it gets in the right place or do I have something 
> to do myself about it?
>
> '73 - Pierre
> __
>
> Pierre Thibaudeau
> VA2RKA/VA2RKB/VE2RIO/VE2RVR/VE2RQF/VE2RTO/VE2LKL/VE2TXD sysadmin
>
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>   





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