DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=btopenworld.com;
  h=DKIM-Signature:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MIMEOLE;
  b=inAiRW0v4989Ljg46NfIN9jwb0FMhmVKTOxUhTHMdd3IFFCXmMnJarnsP7wibQ8xNQF/xYXVIjC+RwNgmjmAgdXeUY6DMpIyB+OTx36+oM+7m9Ilg2RMo5WW+30hxsKjoAxdc9DyF9xP4ZZ4pGW/4VgcyF5MRzLcqPP+HUu2Zdk=  ;
Message-ID: <F9F8DE00A50C408AB03F3DE61B863A4D@JimPC>
From: "James Moritz" <james.moritz@btopenworld.com>
To: <rsgb_lf_group@blacksheep.org>
References: <MFEJIKCLCMPDFHOKMANAMEMEOEAA.paulc@snet.net> <4BAD19D0.300@telia.com> <56DF8C4BED71466A80EB2EB1D99F6788@JimPC> <38A51B74B884D74083D7950AD0DD85E82A1BA3@File-Server-HST.hst.e-technik.tu-darmstadt.de>
In-Reply-To: <38A51B74B884D74083D7950AD0DD85E82A1BA3@File-Server-HST.hst.e-technik.tu-darmstadt.de>
Date: Sun, 28 Mar 2010 00:39:26 -0000
MIME-Version: 1.0
DomainKey-Status: good (testing) 
Subject: LF: Re: Question about ground impedance at 8.97 KHZ 
Content-Type: text/plain;
	format=flowed;
	charset="iso-8859-1";
	reply-type=original
Content-Transfer-Encoding: 7bit
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org


Dear Stefan, LF Group,


...>300 Ohm earth+surroundings losses is very good compared to my values on 
the hill, although i have just one small tree in a radius of >100m. What 
about your ground conductivity?....>

The ground here is clay, with a high water content, so conductivity is 
probably high. The earth system was 4 - 6, 1m long, ground rods, spaced a 
few metres around the feed point.

...>Will you prepare a TX system on the dreamers band as well? Than we could 
repeat our CW QSO just like on 137kHz ;-)...>

Based on the experience of the last few weeks, in order to achieve anything 
more than very short range communication, it will be neccessary for me to 
use the /P site I have used for the receive tests for transmission also. 
This requires some diplomacy with the owner of the site, who is one of my 
relations. I am working on it...

Cheers, Jim Moritz
73 de M0BMU