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<DIV><FONT size=2 face=Arial>I to had the same problem, I found that when I had
the Cumulus Software Configuration for the stations Altitude set at my ASL of 36
meters the Pressure on the software's page was very close to what the weather
station's reading was, but the pressure was way of on aprs reading and website
webpage <A
href="http://www.qsl.net/vk3hau/weather">www.qsl.net/vk3hau/weather</A> , but if
I set the ASL on Cumulus to 126 Meters the pressure stayed the same on the
software's page but the APRS and website's webpage changed to be very close to
the same, I do not know why this happens but its does, you have to play with the
ASL setting in Cumulus's station setting, and it has same thing to do with it
reads the data from the weather station to, cus I played with the ASL setting in
the weather station and it change the reading on both the software and out put
to APRS / webpage, but could not get the pressure reading to even come
close, so the only way I found to get it close was to put in fake ASL. hope this
helps</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>VK3HAU, Michael Wain, Weather APRS VK3HAU-10
</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=vk2mpj@internode.on.net href="mailto:vk2mpj@internode.on.net">Peter
Bye</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=vk4tec@tech-software.net
href="mailto:vk4tec@tech-software.net">Andrew Rich</A> ; <A
title=ozaprs@aprs.net.au href="mailto:ozaprs@aprs.net.au">Australian APRS
Users</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, November 28, 2009 5:20
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [OZAPRS] WX Station
Help</DIV>
<DIV><BR></DIV>Ben Lindner-VK5JFK wrote:
<BLOCKQUOTE cite=mid:4B106587.2050100@activ8.net.au type="cite">Hi
Rete,<BR><BR>I believe that there is raw pressure and station pressure ( I
stand to be corrected on this matter ) this is probably where the difference
is.<BR><BR>Ben</BLOCKQUOTE><BR>Ben,<BR><BR>I did think that this may be the
case, however, upon checking at my QTH there is only a 0.6hpa difference
bewtween Absolute and Relative pressures.<BR><BR><BR><BR>Andrew Rich wrote:
<BLOCKQUOTE cite=mid:8EC4CD6817214D8AB3255340B5DAE1CB@Laptop1520 type="cite"><PRE wrap="">Latest packet from you
VK2MPJ>APRS,TCPIP*,qAC,<A class=moz-txt-link-abbreviated href="mailto:T2AUST:@272343z3451.23S/15034.41E_225/002g004t094r000P000h43b10165eCumulusEW">T2AUST:@272343z3451.23S/15034.41E_225/002g004t094r000P000h43b10165eCumulusEW</A>
aprs.fi is showing 1016.5
Last WX report: 2009-11-27 23:43:34 UTC (3m53s ago)
2009-11-28 10:43:34 EST local time at Nowra, Australia [?]
Temperature: 34.4 °C
Dew point: 20.0 °C
Humidity: 43 %
Pressure: 1016.5 mbar
Wind: Southwest 225° 0.9 m/s (Gusts 1.8 m/s)
Rain: 0.0 mm during last 1 hour
Are you sure you were looking at the latest data ? where you connected to
the APRS IS when you saw the anomoly ?
>From an independant evaluation, your system appears to be working.
Andrew VK4TEC
_______________________________________________
OZAPRS mailing list
<A class=moz-txt-link-abbreviated href="mailto:OZAPRS@aprs.net.au">OZAPRS@aprs.net.au</A>
<A class=moz-txt-link-freetext href="http://lists.aprs.net.au/mailman/listinfo/ozaprs">http://lists.aprs.net.au/mailman/listinfo/ozaprs</A>
</PRE></BLOCKQUOTE><BR>Andrew,<BR><BR>I am trying now to see how that data
has gotten into the system. According to the wx logs here at my station,
the QNH has not been anywhere near 1016.5hpa today infact the highest it has
been in the last 24hrs was approx 1010 at 220 last night.<BR>What Cumulus
does, is generates the WXNOW file in the correct APRS standard (which I
confirmed with the UI-VIEW help files) and then uploads the info to the
APRS-IS at the intervals I specify. <BR><BR>Current WXNOW data is
<BR>Nov 28 2009 17:12<BR>270/003g013t098r000p...P000h25b09970 <BR>But
displayed data is according to aprs.fi<BR><BR><SPAN class=raw_line>2009-11-28
06:13:35 UTC: <B><A
href="http://aprs.fi/?c=raw&limit=&call=VK2MPJ">VK2MPJ</A></B>>APRS,TCPIP*,qAC,<A
class=moz-txt-link-abbreviated
href="mailto:T2SYDNEY:@280613z3451.23S/15034.41E_270/003g014t099r000P000h24b10105eCumulusEW">T2SYDNEY:@280613z3451.23S/15034.41E_270/003g014t099r000P000h24b10105eCumulusEW</A><BR>Which
would (and does) result in a pressure of 1010.5hpa being displayed.<BR><BR>Yes
I am connected to the APRS-IS via UI-View at the moment, I don't have RF
capability at the moment :(<BR><BR>So what I am trying to determine is where
the pressure goes from b09970 in the WXNOW to b10105 as per the packet from
aprs.fi<BR><BR>Does this make sense??<BR><BR>Cheers <BR><BR>Pete
VK2MPJ<BR></SPAN>
<P>
<HR>
<P></P>_______________________________________________<BR>OZAPRS mailing
list<BR>OZAPRS@aprs.net.au<BR>http://lists.aprs.net.au/mailman/listinfo/ozaprs<BR></BLOCKQUOTE>
<DIV>EGARC Inc. Publicity Officer.<BR> </DIV>
<DIV> </DIV>
<DIV> <BR>Michael Wain - VK3HAU<BR>Ph : 613 - 51411650<BR>Email - <A
href="mailto:vk3hau@vk3egc.org">vk3hau@vk3egc.org</A><BR>Web - <A
href="http://www.vk3egc.org">http://www.vk3egc.org</A>
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