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Faulty transmitter

Discussion specific to Fine Offset and similar rebadged weather stations
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bluebristol
Posts: 5
Joined: Fri 28 Dec 2012 3:42 pm
Weather Station: WH-1080
Operating System: Windows 8
Location: Bristol

Faulty transmitter

Post by bluebristol » Fri 30 Sep 2016 11:05 am

I have a Clas Ohlson Weather station bought Dec 2012
Reciever WH1080
Transmitter WH7

The transmitter stopped working and I thought a quick battery replacement would do it - but now have a permanent red light and no connection.

As Clas Ohlson dont sell the transmitter any more Would either of the 2 transmiters sold by Maplin work? and if so which one?
Image

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Many thanks

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mcrossley
Posts: 5234
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2
Operating System: Stretch Lite rPi
Location: Wilmslow, Cheshire, UK
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Re: Faulty transmitter

Post by mcrossley » Fri 30 Sep 2016 12:15 pm

The Clas Ohlson devices are 868 MHz and Maplin 433 MHz as far as I know, so they will not be compatible.

AllyCat
Posts: 1045
Joined: Sat 26 Feb 2011 1:58 pm
Weather Station: Fine Offset 1080/1 & 3080
Operating System: Windows XP SP3
Location: SE London

Re: Faulty transmitter

Post by AllyCat » Sat 01 Oct 2016 8:39 am

Hi,

Yes, agreed, the CO stations use 868 MHz and AFAIK the Maplin's always 434 MHz.

Also, the manufacturer (Fine Offset) changed the Wireless Protocol (data format), I believe with the CO's since 2012 (Maplin's changed earlier). However, these stations are sold under numerous other "badges" so you might find an alternative supplier:

The best starting point might be Walters and Stanton but they are rather more expensive than Maplin. They seem to have several possible replacements; I think the 868 in the model numbers is the radio frequency so a "Watson" 8681 transmitter might be suitable. As a "specilaist" supplier they may be able to help you, I suspect that you need a "mark I" version, but do make sure that you can return anything that isn't suitable.

Note there are at least four types of transmitter, even excluding the different radio frequency and protocol versions: One of the two Maplin's is for a station with no wind Vane (or USB interface), so is certainly usuitable for any station compatible with Cumulus. Some transmitters (e.g. the other from Maplin) don't support the Radio Controlled Clock, so that part can't work (but the Console can still be set manually). You probably have (an early version of) the "third" type, whilst the fourth supports solar measurements, which surprisingly are "(backwards) compatible", but only with the "later" protocol (which I don't believe your station uses).

Cheers, Alan.

bluebristol
Posts: 5
Joined: Fri 28 Dec 2012 3:42 pm
Weather Station: WH-1080
Operating System: Windows 8
Location: Bristol

Re: Faulty transmitter

Post by bluebristol » Sun 02 Oct 2016 2:02 pm

Thank you for your replies
As I felt I have nothing to loose I have been waving my soldering iron at it - somehow managed to get it going but a little erratic - i guess there is a dry joint or the pcb has a fine crack.
I will persevere! :)

lrscj
Posts: 1
Joined: Fri 27 Jul 2018 2:23 pm
Weather Station: WS1080
Operating System: Windows 7

Re: Faulty transmitter

Post by lrscj » Fri 27 Jul 2018 2:27 pm

Did you make it work?
I am in the same situation. Red LED is all the time on except half second.

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