Return-Path: Received: (qmail 10484 invoked from network); 29 Dec 2001 11:53:12 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 29 Dec 2001 11:53:12 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 16321 invoked from network); 29 Dec 2001 11:53:14 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 29 Dec 2001 11:53:14 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16KI07-0001ZG-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 29 Dec 2001 11:50:07 +0000 Received: from cmailenv3.svr.pol.co.uk ([213.218.77.55]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16KI06-0001ZB-00 for rsgb_lf_group@blacksheep.org; Sat, 29 Dec 2001 11:50:06 +0000 Received: from [62.21.145.63] (helo=w8k3f0.freeler.nl) by cmailENV3.svr.pol.co.uk with esmtp (Exim 3.22 #1) id 16KHzL-00075y-00 for rsgb_lf_group@blacksheep.org; Sat, 29 Dec 2001 11:49:19 +0000 Message-ID: <5.1.0.14.0.20011229120737.00a13980@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Sat, 29 Dec 2001 12:51:13 +0100 To: rsgb_lf_group@blacksheep.org From: "Dick Rollema" Subject: LF: Re: Earth resistance In-reply-to: <001701c1904a$1e172ee0$8e7f883e@g3aqc> MIME-Version: 1.0 Content-Type: text/html; charset=windows-1252 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-transfer-encoding: 8bit To All from PA0SE

Laurie, G3AQC wrote:

When I came into the shack this morning it was snowing ! rather wet snow,and
the ant. wires were about half inch diameter !
I turned on the Decca to check, and NIL no ant. current. Checked the
variometer ,reduced inductance by almost 0.5mH and bingo
current again. The wires are a bit low due to the weight of the snow but
only about 1 ft. So wet snow seems to be quite conductive at 136 ! Does'nt
seem to do much for ground loss though since max current about 0.25A short
of dry weather conditions. Thought you'd like to know. 73s Laurie.

In a dry period in summer I have measured an earth resistance at my location of the order of 22 ohms.
When dry in winter this rises to about 30 ohms.
After prolonged rain in winter it becomes 58 ohms.
Does water make the upper layers of the earth more lossy?

Best wishes to you all for 2002.

73, Dick, PA0SE
JO22GD