X-GM-THRID: 1235053231774139599 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.35.22.5 with SMTP id z5cs362796pyi; Sun, 29 Apr 2007 02:22:28 -0700 (PDT) Received: by 10.67.115.19 with SMTP id s19mr4462246ugm.1177838547674; Sun, 29 Apr 2007 02:22:27 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id i39si10207285ugd.2007.04.29.02.22.23; Sun, 29 Apr 2007 02:22:27 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) DomainKey-Status: bad (test mode) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Hi5a5-000861-Mo for rs_out_1@blacksheep.org; Sun, 29 Apr 2007 10:20:33 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Hi5a5-00085s-3a for rsgb_lf_group@blacksheep.org; Sun, 29 Apr 2007 10:20:33 +0100 Received: from an-out-0708.google.com ([209.85.132.251]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Hi5a4-00014l-3G for rsgb_lf_group@blacksheep.org; Sun, 29 Apr 2007 10:20:32 +0100 Received: by an-out-0708.google.com with SMTP id c14so1081024anc for ; Sun, 29 Apr 2007 02:20:29 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=googlemail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; b=rOFqqBCkD95rIGXfjfxDv44K6cc6RugiNkjyqN8pWFN+1gJcTiDnCuKbXNOTg7i5eSDNa6X3rDtKWsBB7NedWQrPZ22WEP8wNA0WtxwtzcQBZGOYFp7d3C09Qgvuj9O/qQ0mxgw5Rte0L5gcw1idb7qwbY6ljxdxTj9dMfKgbQs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type; b=sOo6Xljodb5IHnoSst46RkYBSPtsOcWg6qoFGsqdGJfBhI4GuqBai6ZZmop61Fye5rpqPoju0U0FTOQiBMI+CFMvbq1kOQ8ncCQfAtk4NA2rMhm4KMzxSYuTMbh4qnzy+tbszYo3BBSCUexWNSz45Hnr270y0jv1TElD4gejzyY= Received: by 10.100.109.13 with SMTP id h13mr1424317anc.1177838429422; Sun, 29 Apr 2007 02:20:29 -0700 (PDT) Received: by 10.100.112.20 with HTTP; Sun, 29 Apr 2007 02:20:29 -0700 (PDT) Message-ID: <88d2415e0704290220g5f09dce6oe34245df3201d05a@mail.gmail.com> Date: Sun, 29 Apr 2007 10:20:29 +0100 From: "lawrence mayhead" To: rsgb MIME-Version: 1.0 DomainKey-Status: good (testing) X-Spam-Score: 0.9 (/) X-Spam-Report: autolearn=disabled,AWL=-0.904,HTML_00_10=0.642,HTML_MESSAGE=0.001,SUBJ_ALL_CAPS=1.166 Subject: LF: 500 PA2NL QRS Content-Type: multipart/alternative; boundary="----=_Part_309695_9394187.1177838429370" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_MESSAGE,SUBJ_ALL_CAPS autolearn=no version=2.63 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 Status: O X-Status: X-Keywords: X-UID: 3747 ------=_Part_309695_9394187.1177838429370 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline PA2 beacon very strong here also, on the south coast. Interesting antenna effect:- I run a pair of large grounded loops situated close to the main TX antenna (inv L ) These have worked very well on 136 and are quite directional, providing useful improvement in SNR. On 500kHz however they are not directional, at least not in the right directions. I have spent several hours trying to find out what has gone wrong with them ! By chance this morning I left the TX ant. grounded and was surprised to find that the loops are now directional. So it looks like there is much more coupling between the TX and RX ants on 500 than 136. Could this simply be capacitive ? perhaps I need smaller loops? Anyway if you are running a RX loop close to your TX antenna, beware. 73 Laurie. ------=_Part_309695_9394187.1177838429370 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline PA2 beacon very strong here also, on the south coast.

Interesting antenna effect:-
I run a pair of large grounded loops situated close to the main TX antenna (inv L )
These have worked very well on 136 and are quite directional, providing useful
improvement in SNR. On 500kHz however they are not directional, at least not
in the right directions.
I have spent several hours trying to find out what has gone wrong with them !
By chance this morning I left the TX ant. grounded and was surprised to find that
the loops are now directional. So it looks like there is much more coupling between the
TX and RX ants on 500 than 136.
Could this simply be capacitive ? perhaps I need smaller loops?
Anyway if you are running a RX loop close to your TX antenna, beware.
73 Laurie.
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