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Message-ID: <3NKaIlAiG57CFw8c@pickmere.demon.co.uk>
Date: Tue, 2 Aug 2005 16:30:42 +0100
To: rsgb_lf_group@blacksheep.org
From: "M. J. Powell" <mike@pickmere.demon.co.uk>
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Hello Uwe,

mike@pickmere.demon.co.uk

Thank you very much.

73

Mike



In message <001201c596a1$94223ce0$0600a8c0@router>, Uwe Wensauer 
<uwe.wensauer@gmx.de> writes
>Hi Mike,
>please send me Your e-mail- adress.
>then I will send You my collected datas ( Exel ) which can be transformed
>into a plot ( as far as I know ...)
>Also could provide diagram / setup for measurements
>Uwe
> 
>  ----- Original Message -----
>  From: Mike Underhill
>  To: rsgb_lf_group@blacksheep.org
>  Sent: Monday, August 01, 2005 1:03 PM
>  Subject: LF: RE: Soil Conductivity Measurement
>
>
>  Uwe, I would be very interested in a plot of how the conductivity has
>  varied over the year and in what the largest variation of maximum to
>  minimum that you have found? 
>
>
>   
>
>
>  It would also be useful to measure at a frequency closer to 136Khz for
>  comparison purposes?  It would have to be at a frequency away from
>  interference and the test signal would have to be strong enough to
>  overcome interference. 
>
>
>   
>
>
>  Has anyone on the list experience in measuring ground conductivity at
>  such frequencies?
>
>
>   
>
>
>  Mike – G3LHZ
>
>
>   
>
>
>  I´am mesuring ground conductivity over almost 1 year regularly
>
>
>   
>
>
>  today it was 15,6 Ohm / m ( measured with 16Volt@ 50Hz )
>
>
>   
>
>
>   
>
>
>  I try to built a measuring device with other frequency , somthing odd ( no
>  multibles from 50Hz, thinking about  111 Hz - )
>
>
>  and automatic daily measurements ( at present times done manually)
>
>
>   
>
>
>  Would like to discuss about it
>
>
>   
>
>
>  Uwe, DK1KQ
>
>
>   
>
>
>   
>
>
>
>  --
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>
>
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>  28/07/2005

-- 
M.J.Powell