Order Tray | Contact Us | Home | SIG Lists

[aprssig] Weather Station Path/Rate Recommendations

Steve Dimse steve at dimse.com
Tue Jan 20 20:46:10 UTC 2009


A single bit only would have any value if all "smart" stations had the  
same parameters in regards to baseline rate, faster rate, and  
thresholds for switching between the two. If you allow any user  
configuration of this, then you would to report these in a beacon as  
well.

If you meet this requirement, so that a viewing meteorologist knows  
the changes which cause a rate change, then you eliminate option 1.  
Options 2 through 4 are still valid explanations for a stations which  
hasn't reported.

Steve K4HG

On Jan 20, 2009, at 3:34 PM, Mark Cheavens wrote:

> Could be a bit that reports if the station is "smart" or "dumb".
>
> Mark
> KC5EVE
> At 02:11 PM 1/20/2009, you wrote:
>> The problem:
>>
>> I'm a meteorologist that needs to know the conditions at station XYZ.
>> I look it up, and see it hasn't reported in 25 minutes. Does this
>> mean...
>>
>> 1. the station does not have "smart weather reporting"?
>>
>> 2. the station has "smart weather reporting" and conditions are  
>> stable?
>>
>> 3. the station has "smart weather reporting" and conditions have
>> changed, but the report was lost in transit due to channel congestion
>> or other factor unrelated to weather?
>>
>> 4. the weather at XYZ got so bad so suddenly the station was blown
>> way, washed away, or otherwise trashed?
>>
>> You can't use the absence of data to make decisions unless you have a
>> consistent reporting algorithm and completely reliable data delivery.
>> Since neither is possible in the world of APRS, "smart weather
>> reporting" is dumb ;-)
>>
>> Steve
>>
>> On Jan 20, 2009, at 3:00 PM, Steve Noskowicz wrote:
>>
>>>
>>>
>>>> 30 minutes is too slow for most situations. ...
>>>> for other types of weather ...rates of five minutes are
>>>> desired by many ...
>>>
>>> Sounds obvious to me.  This suggests a Wx station "Smart Beacon"
>>> algorithm.  Wx condition change rate handled just like vehicle  
>>> speed.
>>>
>>> No change -> 30 min _or more_
>>> Rapid change -> 5 min.
>>>
>>> 73, Steve, K9DCI
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> aprssig mailing list
>>> aprssig at tapr.org
>>> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
>>>
>>
>>
>> _______________________________________________
>> aprssig mailing list
>> aprssig at tapr.org
>> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
>
>
>
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
>




More information about the aprssig mailing list