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 Post subject: Davis Radiation shield
PostPosted: Sat Dec 20, 2008 2:11 pm 
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Joined: Thu Dec 18, 2008 5:23 pm
Posts: 16
Location: Pyrgos,Greece
Weather Station: 265 NE
Hello guys,I have the National Geographic 265NE wireless weather station and i woyld like to know if Davis radiation shield can be used by my station or there will be any problems?Im saying this becayse nationals radiation shield sucks...if not ill try to make hmm a little cage for temp/hum sensor..if someone knows something about this please let me know..
Thanks :)


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 Post subject: Re: Davis Radiation shield
PostPosted: Sun Dec 21, 2008 6:50 pm 
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Joined: Thu Dec 18, 2008 5:23 pm
Posts: 16
Location: Pyrgos,Greece
Weather Station: 265 NE
some help on this please guys..Can Davis radiation shield be used by other weather stations?I just need it to put inside the TEMP/HUM sensor,or its only for davis WS use?


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 Post subject: Re: Davis Radiation shield
PostPosted: Sun Dec 21, 2008 7:26 pm 
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Joined: Mon Jun 02, 2008 6:49 pm
Posts: 17614
Location: Sanday, Orkney
Weather Station: Davis VP2
Operating System: Windows Home Server 2011
Some people have made their own shields - a search on the forum should find it.

Steve


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 Post subject: Re: Davis Radiation shield
PostPosted: Mon Dec 22, 2008 12:05 am 
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Joined: Sat Dec 13, 2008 11:01 pm
Posts: 28
Location: Isle of Lewis
Weather Station: LaCrosse WS2300 & Davis VP2
As I don't know what the sensor is like in that WS then I can't say if it'll fit in the Davis shield but, here's a couple of sites with home made designs that may prove useful:

http://www.hereford-weather.co.uk/html/ ... eendiy.htm

http://www.weather-watch.com/smf/index. ... 736.0.html

http://www.geocities.com/meteoperisteri/Klovos.html

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Scottish Weather Network
Hebrides Weather


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 Post subject: Re: Davis Radiation shield
PostPosted: Thu Jan 01, 2009 2:05 pm 
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Joined: Thu Dec 18, 2008 5:23 pm
Posts: 16
Location: Pyrgos,Greece
Weather Station: 265 NE
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Happy new year!!Well i would like you guys to take a look at my Weather station's sensor,and someone of you who own a Davis weather station could tell me if i can put this sensor into davis radiation shield?Im thinking of davis radiation shield because i tried to make my own radiation shield but i failled....I need davis shield just to put my sensor into the shield thats all i want,what you guys think?Is that possible?Or davis shield can be used only by davis weather station?


this is what im talking about

Image


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 Post subject: Re: Davis Radiation shield
PostPosted: Thu Jan 01, 2009 10:44 pm 
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Joined: Tue Sep 09, 2008 3:37 am
Posts: 696
Location: Auckland, New Zealand
Weather Station: wh-1081
Operating System: Weather Laptop - Windows 7 Pro
Morelo
Does your transmitter not come with the plastic weather shield as supplied on the wh1081?
I just mount my transmitter up under the eaves of the house where it never gets any sun, and is exposed to some wind but not rain. I haven't had any reason to use any other weather shield than the one supplied.
If you didn't receive a weather shield with your unit then I can send you a photo of what it should look like?
Maybe these WH108x units vary around the world.

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Terry Wiltshire
http://www.janter.co.nz/weather/index.htm
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 Post subject: Re: Davis Radiation shield
PostPosted: Fri Jan 02, 2009 7:44 am 
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Joined: Thu Dec 18, 2008 5:23 pm
Posts: 16
Location: Pyrgos,Greece
Weather Station: 265 NE
Ahh ofcourse ive got his own shield,but isnt that good in order to give me correct clues,because of the sun that sees it during the most of the day time....so i get mm 2-4 degrees higher T than my citys davis station....that's why im asking about davis shield :)....


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 Post subject: Re: Davis Radiation shield
PostPosted: Fri Jan 02, 2009 8:34 am 
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Joined: Wed Sep 17, 2008 1:34 pm
Posts: 629
Location: Mesa, AZ USA
Weather Station: Davis VP2 Plus w/24 FARS
Operating System: WinX Pro SP3 Dedicated wstn
2 - 4 degrees is not very much variation. How far away is the other station? Is it out in the clear like yours? Is it at the same elevation?

Have you tried checking the temp at your station location with a different themometer?

It gets pretty hot here... and I have a 24hr FARS... and it does make a difference, but comparing my station to the next closest weather station is not a very good indication if I am on or or not.

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Kevin
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All you need is Time, Aptitude and Desire ... and you can build just about anything...
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 Post subject: Re: Davis Radiation shield
PostPosted: Fri Jan 02, 2009 8:43 am 
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Joined: Wed Sep 17, 2008 1:34 pm
Posts: 629
Location: Mesa, AZ USA
Weather Station: Davis VP2 Plus w/24 FARS
Operating System: WinX Pro SP3 Dedicated wstn
BTW.. the shield you are looking at is not very big, espcially inside.

The shield is designed to hold the small sendor itself, which is about 2"x2" square and with the components less than an inch thick. It suspends the sensor in a slot.

the sensor has both temp and humidity in it and is cabled to reach the ISS board.

I have a picture of one as I replaced one on my station once.

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Kevin
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All you need is Time, Aptitude and Desire ... and you can build just about anything...
Cumulus User Maps


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 Post subject: Re: Davis Radiation shield
PostPosted: Fri Jan 02, 2009 8:52 am 
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Joined: Wed Sep 17, 2008 1:34 pm
Posts: 629
Location: Mesa, AZ USA
Weather Station: Davis VP2 Plus w/24 FARS
Operating System: WinX Pro SP3 Dedicated wstn
This is what the sensor that is inside the shield looks like. At the most the card is about 2 inches long.


You do not have the required permissions to view the files attached to this post.

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Kevin
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All you need is Time, Aptitude and Desire ... and you can build just about anything...
Cumulus User Maps


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 Post subject: Re: Davis Radiation shield
PostPosted: Fri Jan 02, 2009 9:06 am 
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Joined: Thu Dec 18, 2008 5:23 pm
Posts: 16
Location: Pyrgos,Greece
Weather Station: 265 NE
Yes the other station is located in the center of the town mm about 5-8m higher than mine station,i get almost the same clues during the night(or a bit lower cuz actually i live in the suburbs of city)......ah so you think i will not be able to put my sensor in there?Is the hole that small? :( ...
Image

davis shield inside i saw that and i thought i would prolly be able to put my sensor in there..it looks deep enough for my sensor,doesnt it??


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 Post subject: Re: Davis Radiation shield
PostPosted: Fri Jan 02, 2009 4:12 pm 
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Joined: Sat Dec 13, 2008 11:01 pm
Posts: 28
Location: Isle of Lewis
Weather Station: LaCrosse WS2300 & Davis VP2
Would this mini Stevenson Screen be of any use?

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Hebrides Weather


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 Post subject: Re: Davis Radiation shield
PostPosted: Fri Jan 16, 2009 1:44 am 
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Joined: Thu Sep 04, 2008 8:35 am
Posts: 168
Location: Laindon, S. Essex
Weather Station: Watson W-8681 (Fine Edge type)
Operating System: XP
Screwfix do a nice 220mmx220mm white plastic louvre as a gas vent. I've been thinking of making one based on these for the sides. They are only about £1.20p each so if you wanted a larger one you could use more. Would be easier and cheaper.
Dave

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 Post subject: Re: Davis Radiation shield
PostPosted: Tue Jan 20, 2009 12:34 pm 
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Joined: Mon Jan 05, 2009 2:25 am
Posts: 112
Location: Worsley, Manchester
Weather Station: Fine Offset WH1081
Operating System: Shuttle Xpc SK41, XP Pro SP3
See the below link...

viewtopic.php?p=5031#p5031

Dave

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