Envelope-to: dave@picks.force9.co.uk Delivery-date: Mon, 01 Aug 2005 14:58:02 +0100 Received: by ptb-mxcore15.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1Dzanq-0004K9-9Y for dave@picks.force9.co.uk; Mon, 01 Aug 2005 14:58:02 +0100 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore15.plus.net with esmtp (PlusNet MXCore v2.00) id 1Dzanq-0004K2-28 for dave@picks.force9.co.uk; Mon, 01 Aug 2005 14:58:02 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1DzanH-0000ge-Ja for rs_out_1@blacksheep.org; Mon, 01 Aug 2005 14:57:27 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1DzanG-0000gV-R2 for rsgb_lf_group@blacksheep.org; Mon, 01 Aug 2005 14:57:26 +0100 Received: from mail.gmx.de ([213.165.64.20] helo=mail.gmx.net) by relay2.thorcom.net with smtp (Exim 4.51) id 1Dzb7G-0006Te-QF for rsgb_lf_group@blacksheep.org; Mon, 01 Aug 2005 15:18:09 +0100 Received: (qmail invoked by alias); 01 Aug 2005 13:57:18 -0000 Received: from p54906ECD.dip.t-dialin.net (EHLO router) [84.144.110.205] by mail.gmx.net (mp032) with SMTP; 01 Aug 2005 15:57:18 +0200 X-Authenticated: #9373712 Message-ID: <001201c596a1$94223ce0$0600a8c0@router> From: "Uwe Wensauer" To: rsgb_lf_group@blacksheep.org References: <005301c59688$9fa05250$6405a8c0@MJUSonyLaptop> Date: Mon, 1 Aug 2005 16:01:51 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Y-GMX-Trusted: 0 Subject: LF: Re: RE: Soil Conductivity Measurement Content-Type: text/html; charset=windows-1252 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SpamFiltered: by PlusNet MXCore (v2.00) Content-transfer-encoding: 8bit

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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