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ZL3AI > APRDIG 23.04.03 09:21l 217 Lines 9352 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: RE: [aprssig] Re: WXTrak is now available
>Cap - you're absolutely right.
>
>Jim - you never heard these concerns, and never gave it any thought...
>
>That's because you weren't listening, or just ignored it.
>The concerns WERE raised, but like many things on APRS,
>the developer(s) had their mind made up, and marched to the
>beat of their own drum. Early on in the development of WxTrack I
>presented FMH-1 and other NWS citing guidelines as the accepted
>references for the observation and reporting protocol.
During the beta testing of this product? I do not recall. I do recall a
discussion on transmission periods and concerned was raised over the issue
of what one might need. And, I think the out come reflects that very well.
>Meteorologists and the scientific community have spent a great deal
>of time studying weather and how best to collect data and report it.
>This concept of "real-time weather" is a joke, just a dream that has no
>relationship to the established worldwide standards. There is a valid
>need in specific situations for minute-by-minute observations. But to
>confuse those individual circumstances with routine, automated
>observations broadcast to the rest of the world only serves to degrade
>the integrity of the data and represent APRS weather efforts as merely a
>haphazard and uncoordinated group without concern for established
>principals.
>
>1000 bad observations are not better than a dozen accurate ones.
>Maybe this is why APRS is ranked by NWS right at the bottom of the scale
>for data reliability, compared to all CWO sources.
All I can say here is that other people, other government agencies use
weather data for different needs. And if what you say is true, then the NWS
really does need to pull their heads out of the sand and wake up to
technology. I know for a fact that is not true. If it is, then FSL just
really needs to go away and quit wasting the taxpayers money. NOAA could
shut down their radars all over the world and GOES could end! Think of the
Billions of dollars taxpayers could stop paying. Some agencies are looking
for Real-time tactical data...not statisical data. Government standards
have been developed for different applications very much based on FMH-1
standards. FMH-1 standards are total worthless if the majority of all
stations can not meet those standards. And as I have stated in the past,
there are "different" (not necessarily better) standards that would better
reflect the types of stations APRS wx stations actually are. To the
letter? NO! In every instance. The perfect FMH-1 station is not going to
happen in APRS, 99% of the time....so in effect it is pointless. In
any-case, you are on a totally different page than I am on in regards to
real-time data. if real time data is a joke, then why are the american
people spending millions and millions of dollars a year for our government
to collect it in every way shape or form?
>I think we should be striving to IMPROVE our observation efforts, not
>just flood the airwaves with thousands of questionable reports.
Yes, I agree. I would suggest this on any network....it is a constant
effort by all. When I learn something new, that I can do to improve my
stations (that is within my means) I do it. One fellow came by and
suggested I raise my humidity sensor a few feet.....an hour later it was
done! I'd love to cut down two of my neighbors trees that I think
influence my wind...but that is not within my means to do and the shade on
my house is worth a lot!
You show me 1000 questionable reports coming from the APRSWXNET, please!
You really think there are that many and nothing being done about it? Shame
on APRSWXNET.
I see the QC that is being applied to them by the NWS right up there with
the rest of the MesoNet networks and against the other networks. I do not
know how you ingest the data you see or where these questionable reports
are coming from but if there are that many, let's fix it.
Jim
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Subject: Re: WXTrak is now available
From: "Russ Chadwick" <russ@wxqa.com>
Date: Sun, 20 Apr 2003 19:21:02 -0000
X-Message-Number: 20
----- Original Message -----
From: "Rich Garcia" <k4gps@arrl.net>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Sunday, April 20, 2003 6:30 PM
Subject: [aprssig] Re: WXTrak is now available
>Personally I check my readings against the local conditions every morning
>and I also check the rain readings with a manual gauge that was set next to
>my station's bucket. Maybe I am off by a few tenth's here and there but at
>least they are accurate enough.
Rich,
Here's another way to check the accuracy of your weather readings
http://www.wxqa.com/aprswxnetqc.html
This compares your readings with nearby stations (from the entire MADIS data
base) and with the output of an operational NWS numerical weather model, the
Rapid Update Cycle (RUC).
Russ Chadwick KB0TVJ
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Subject: Re: Pizza Bash
From: "Bruce W. Martin" <aprssig@almostanywhere.com>
Date: 20 Apr 2003 14:49:11 -0500
X-Message-Number: 21
Any chance someone can come up with a PA system so that we can hear the
people speaking?
Bruce, KQ4TV
On Sat, 2003-04-19 at 16:04, Greg Noneman wrote:
>James,
>
>Marion's is fine with me... and it's a tradition!
>
>See everyone there.
>
>73,
>Greg
>WB6ZSU
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Subject: Re: WXTrak is now available
From: Gerry Creager N5JXS <gerry.creager@tamu.edu>
Date: Sun, 20 Apr 2003 14:56:13 -0500
X-Message-Number: 22
Mesoscale use of weather data can make use of it at a finer granularity
than 15 minutes. And I might note that, because of the processing
involved, the APRSWXNET data can be delayed almost an hour in reporting.
It's still more timely than some of the other sites available today.
gerry
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Subject: Re: WXTrak is now available
From: "Spider" <spider@rivcom.net>
Date: Sun, 20 Apr 2003 13:07:55 -0700
X-Message-Number: 23
>APRSWXNET downloads weather data from findu.com every 15 minutes. This is
>due to a lack of computer resources at NOAA, not at findu.com where the data
>is available at 5 minute intervals. I have tried to get NOAA to start
>acquiring at the faster 5 minute rate, but have not been successful so far.
I understand this and the folks want to...but funding, etc., hamper many
worthwhile projects,,,sigh.
Although, some of the new stuff in Utah and the new RAWS servers are pretty
cool and the servers
were badly needed!
>> Not everything is based and centered around the NWS or APRSWXNET when
>>it comes to weather data or any data, for that matter.
>
>Not sure how to respond to this except that the greatest use of weather data
>in numerical weather prediction (objective forecasting) and in human weather
>prediction (subjective forecasting) is probably in the NWS
That was not a dig, you know I support the APRSWXNET and all the volunteer
efforts and the energy people put out. To clarify, much data is looked at
before NWS gets their hands on it, APRS data included. NWS is not always
there in a tactical situation where immediate data is needed and an EM has
to ingest what he/she can. For example, if I had a bio-terrist chemical
attact in Parker, AZ. And I called the NWS for immediate weather data for
the area....they would be totally dumbfounded and they could NOT give any
report...accurate or otherwise for surface data. Those "12" official
"nearby" (yeah like 60 miles away) do absolutely not a bit of good in a
local disaster situation. I could call a local "weather hobbyist" and get a
very reasonible report. It's really kinda funny....Trained spotters call
the NWS for reporting conditions....before issuing an immediate warning or
an alert, NWS calls the sheriffs office to confirm.....then the sheriff
contacts the officers who might have been the original spotter or the
actual spotter who made the original call and an hour later the warning
gets issued....and by then the disaster is over with! Sorry for the
tangent...but the process needs improvements and you need not be a rocket
scientist to see it! In reality, the NWS, is only good for general
information....only thing that have going for them in a tactical immediate
situation is live real time data....from anywhere they can get it and I
think I can safely say, the APRSWXNET reports are just as valid as a call
from a spotter....and probably more accurate with no personality/stress
included.
Jim
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Subject: NMEA sentences from TM-D700A
From: ik7565@erols.com
Date: Sun, 20 Apr 2003 16:10:01 -0400
X-Message-Number: 24
Anyone know how to get NMEA from the DB-9 on the Kenwood TM-D700A? My
Garmin III+ feeds the Kenwood but there times when I'd like to plug in a
laptop and run mapping software (e.g. Mapsource) on the laptop while
running the Kenwood in the "TNC APRS" mode.
Or can I get it from the DIN port? Or do I have to split the signal
coming down the GPS cable? Thanks!
73 de Ian
N8IK-9
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