Welcome to the Cumulus Support forum.
Latest Cumulus MX V4 release 4.0.1 (build 4023) - 16 May 2024
(Note that 4.1.0 (build 4024) - 05 June 2024 remains available, but usage of this version is not recommended - particularly for Davis stations - and the included utility in this distribution for migrating to v4 is known to contain errors affecting conversion of dayfile.txt)
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Latest Cumulus MX V4 release 4.0.1 (build 4023) - 16 May 2024
(Note that 4.1.0 (build 4024) - 05 June 2024 remains available, but usage of this version is not recommended - particularly for Davis stations - and the included utility in this distribution for migrating to v4 is known to contain errors affecting conversion of dayfile.txt)
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Weathervane set up
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- Posts: 2
- Joined: Sat 26 Dec 2009 12:24 pm
- Weather Station: Maplin usb wireless weatherforec
- Operating System: windows vista home premium
Weathervane set up
How do i set up my weathervane to point North.I have a compass but find it difficult to set it up accuretly.Regards gregory_p3
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Weathervane set up
You need to align it with true north, not magnetic north. The easiest way (for me) is to find a landmark on the OS map which is due north and align with that. It's all wide open spaces around here, so that may not be so easy for everyone. If you have to use a compass, you will need to take magnetic variation into account; there's a calculator here: http://www.nearby.org.uk/gma_calc.cgigregory_p3 wrote:How do i set up my weathervane to point North.I have a compass but find it difficult to set it up accuretly.Regards gregory_p3
Steve
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- Posts: 2
- Joined: Sat 26 Dec 2009 12:24 pm
- Weather Station: Maplin usb wireless weatherforec
- Operating System: windows vista home premium
Re: Weathervane set up
Thanks for your help an advice steve,will do what you have suggested.Peter
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- Posts: 280
- Joined: Fri 15 Aug 2008 5:22 pm
- Weather Station: WH 1081 (EasyWeather type)
- Operating System: Win10
- Location: Garforth, W. Yorks, UK
- Contact:
Re: Weathervane set up
1. Use a permanent marker to mark or highlight the South on head unit.
2. Stand some distance away with a compass and to the south of the unit
3. Move to your left or right watching the compass, until the unit is to your true north (making allowance for your local magnetic variation). 4. Now get someone to turn the unit, until the south mark is looking directly towards you.
Alternative method with no use of compass...
On a sunny day, at exactly 12:00, turn the head so the shadow on the head starts equidistant at either side of the south mark on the head. A similar shadow process can be used to align a sat dish.
2. Stand some distance away with a compass and to the south of the unit
3. Move to your left or right watching the compass, until the unit is to your true north (making allowance for your local magnetic variation). 4. Now get someone to turn the unit, until the south mark is looking directly towards you.
Alternative method with no use of compass...
On a sunny day, at exactly 12:00, turn the head so the shadow on the head starts equidistant at either side of the south mark on the head. A similar shadow process can be used to align a sat dish.
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Weathervane set up
To be pedantic - at exactly solar noon.harrym1byt wrote:On a sunny day, at exactly 12:00,
Steve
- RCE
- Posts: 106
- Joined: Sat 26 Dec 2009 7:59 am
- Weather Station: WH1080
- Operating System: Vista
- Location: Sheffield UK
Re: Weathervane set up
Go onto Google Maps, switch to Sat view. Look at location of your station and pick something straight up the page (North) or straight down the page (South) to use as a landmark for alignment.
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Alan
Alan
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- Posts: 16
- Joined: Mon 14 Dec 2009 8:52 pm
- Weather Station: Fine Offset
- Operating System: WHS
- Location: Canvey Island
- Contact:
Re: Weathervane set up
Set mine up in the garden today and that is exactly what I did.RCE wrote:Go onto Google Maps, switch to Sat view. Look at location of your station and pick something straight up the page (North) or straight down the page (South) to use as a landmark for alignment.
Centred on the point in the garden where the unit was going and then headed north and picked out a couple of items on the map to allow me to guage north.
Fitted in perfictly with my 'gut feeling' as well
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- Posts: 1885
- Joined: Sat 21 Feb 2009 12:41 pm
- Weather Station: Nothing working ATM - making one
- Operating System: OS X, Linux Mint, Win7 & XP
- Location: Devon UK
Re: Weathervane set up
I did much the same using Google maps - satellite view. My station is on a field boundary and this is just a few degrees off due north. I used the boundary and the few degrees correction when setting up the weather vane. The detail in Google maps is amazing! It's even better in the towns and cities.
Gina
Sorry, no banner - weather station out of action. Hoping to be up and running with a new home-made one soon.
Sorry, no banner - weather station out of action. Hoping to be up and running with a new home-made one soon.
- GreenwoJ
- Posts: 22
- Joined: Mon 04 Jan 2010 11:50 pm
- Weather Station: FineOffset WH1080 (Maplin N96GY)
- Operating System: Windows 11
- Location: Hythe, Hampshire
- Contact:
Re: Weathervane set up
Hiya,
If you can't see any landmarks, by using Google Maps and the Digital TV website you can work out where your TV aerial is pointing. In theory (if your aerial is corectly aligned) you can use this as your datum to find North. This works really well if the aerial and your wind vane are mounted close by each other, perhaps on the same chimney etc.
Chat soon.
If you can't see any landmarks, by using Google Maps and the Digital TV website you can work out where your TV aerial is pointing. In theory (if your aerial is corectly aligned) you can use this as your datum to find North. This works really well if the aerial and your wind vane are mounted close by each other, perhaps on the same chimney etc.
Chat soon.
My weather pages for Hythe, Hampshire
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- Posts: 7
- Joined: Mon 04 Jan 2010 1:49 pm
- Weather Station: Rosenborg 68700 aka WH1080
- Operating System: Win 7 64 bit
- Location: Vemmelev, Denmark
Re: Weathervane set up
My house was build in '63 with my weatherstation in mind. It is oriented exatly east-west