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[195.171.43.25]) by mx.google.com with ESMTP id wj1si3501089wjb.46.1969.12.31.16.00.00; Thu, 12 Sep 2013 12:47:25 -0700 (PDT) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1VKCSh-0000Lp-2H for rs_out_1@blacksheep.org; Thu, 12 Sep 2013 20:21:55 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VKCSg-0000Lg-E5 for rsgb_lf_group@blacksheep.org; Thu, 12 Sep 2013 20:21:54 +0100 Received: from mail-qc0-f175.google.com ([209.85.216.175]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1VKCSd-0007Ds-3n for rsgb_lf_group@blacksheep.org; Thu, 12 Sep 2013 20:21:53 +0100 Received: by mail-qc0-f175.google.com with SMTP id v2so184058qcr.6 for ; Thu, 12 Sep 2013 12:21:49 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=No6uZJjQfKOLhIcL51S0AfEkHiDuMtnQQ9IhqhtKk0M=; b=vjbFKe5U4W0kRZJGA9LwKD9a5eZ2Byf2WRcz2VopPr1s/fCPaVIrmK213DiTtaj0jp RvlmxYtn/aaJ/RdoOfHUpdyryhbtgfFCuC6pIZHTtltO23psKVN4lGxfZchpOXqQEx6k 6m6O4X3wARb/958eyIdbekY5ts969g3QiVuICWCPBwlk9JXSZI2Lc6mhcjEJR9N1c/RV Gw8nqyrGh1a0WlB+qnHvvPzRQdC5L3MeBIXh/1MavUwS3JcMOn4nFpLg1yJcQQUlwVWC 4SxyWDAkSpUCeZLfopivRIwthg2YQ15MoCXUbPyIw+h1WOUfzkOWc3hheFmzXdbBo5Yz x5xw== MIME-Version: 1.0 X-Received: by 10.49.116.99 with SMTP id jv3mr4568715qeb.34.1379013709382; Thu, 12 Sep 2013 12:21:49 -0700 (PDT) Received: by 10.229.11.138 with HTTP; Thu, 12 Sep 2013 12:21:49 -0700 (PDT) In-Reply-To: References: Date: Thu, 12 Sep 2013 20:21:49 +0100 Message-ID: From: Roger Lapthorn To: "rsgb_lf_group@blacksheep.org" X-Spam-Score: -0.7 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: And you are weaker with me Dave G3WCB (-30dB) than on the earth-electrode set-up. Suspect loop directionality and odd orientation may be the issue? 73s Roger G3XBM On 12 September 2013 20:06, Dave G3WCB. wrote: [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.216.175 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (rogerlapthorn[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 52d17ee6003fa6763aae891a69410baf Subject: Re: LF: RE: 630m WSPR this evening Content-Type: multipart/alternative; boundary=047d7b6dc86e49e5bf04e634a67d X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.7 required=5.0 tests=HTML_20_30,HTML_FONTCOLOR_BLUE, HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE,MAILTO_TO_SPAM_ADDR, TO_ADDRESS_EQ_REAL 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: 2631 --047d7b6dc86e49e5bf04e634a67d Content-Type: text/plain; charset=ISO-8859-1 And you are weaker with me Dave G3WCB (-30dB) than on the earth-electrode set-up. Suspect loop directionality and odd orientation may be the issue? 73s Roger G3XBM On 12 September 2013 20:06, Dave G3WCB. wrote: > ** > Hi, Roger. > > No sign of you so far this evening. > > 73, Dave G3WCB IO9RM > > -----Original Message----- > *From:* owner-rsgb_lf_group@blacksheep.org [mailto: > owner-rsgb_lf_group@blacksheep.org]*On Behalf Of *Roger Lapthorn > *Sent:* 12 September 2013 19:15 > *To:* rsgb_lf_group@blacksheep.org > *Subject:* LF: 630m WSPR this evening > > 'Recently I moved 350m east (!) to a new QTH and I've been experimenting > with 630m WSPR. > > My initial tests were with the transverter on my website feeding a pair of > earth-electrodes but with a shorter baseline than was possible at the old > QTH (about 12m separation). Although I managed to get reports from G, ON > and PA, it was clear that results were nowhere near as good as I obtained > at the old QTH. I am speculating that this is due to the effective spacing > between earth rods being much shorter and due to buried wires and pipes > criss-crossing the lawn. On RX it is working very well though and I have > copied most of the nearer Europeans on 630m WSPR. > > This afternoon I converted the earth-electrode antenna to an "in the air" > loop by disconnecting the earth rods and joining the wire ends with a wire > running along the top of the lawn (in the grass). The loop DC resistance is > 0.9 ohms and it tunes sharply with about 1.7nF. Matching is via a 3C90 > step-down toroid. > > Initial encouraging reports include first spots from M0PPP, who had failed > to copy me before from this QTH, as well as PA3ABK/2 and G8HUH. > > If anyone else can look for me this evening I'd appreciate it. The loop is > not very high and can be further improved if results this evening are > encouraging. > > 73s > Roger G3XBM > > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > https://sites.google.com/site/sub9khz/ > http://qss2.blogspot.com/ > http://www.youtube.com/user/g3xbm > > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk https://sites.google.com/site/sub9khz/ http://qss2.blogspot.com/ http://www.youtube.com/user/g3xbm --047d7b6dc86e49e5bf04e634a67d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
And you are weaker with me Dave G3WCB (-30dB) th= an on the earth-electrode set-up. Suspect loop directionality and odd orien= tation may be the issue?

73s
Roger G3XBM


On 12 September 2013 20:06, Dave G3WCB. = <ganymede444@btopenworld.com> wrote:
Hi,=20 Roger.
=A0
No=20 sign of you so far this evening.
=A0
73,=20 Dave G3WCB IO9RM
-----Original Messa= ge-----
From:=20 o= wner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Roger=20 Lapthorn
Sent: 12 September 2013 19:15
To:=20 rsgb_lf= _group@blacksheep.org
Subject: LF: 630m WSPR this=20 evening

'Recently I moved 350m east (!) to a new QTH and I&#= 39;ve been=20 experimenting with 630m WSPR.

My initial tests were with the=20 transverter on my website feeding a pair of earth-electrodes but with a= =20 shorter baseline than was possible at the old QTH (about 12m separation).= =20 Although I managed to get reports from G, ON and PA, it was clear that re= sults=20 were nowhere near as good as I obtained at the old QTH. I am speculating = that=20 this is due to the effective spacing between earth rods being much shorte= r and=20 due to buried wires and pipes criss-crossing the lawn. On RX it is workin= g=20 very well though and I have copied most of the nearer Europeans on 630m W= SPR.=20

This afternoon I converted the earth-electrode antenna to an &quo= t;in the=20 air" loop by disconnecting the earth rods and joining the wire ends = with a=20 wire running along the top of the lawn (in the grass). The loop DC resist= ance=20 is 0.9 ohms and it tunes sharply with about 1.7nF. Matching is via a 3C90= =20 step-down toroid.

Initial encouraging reports include first spots = from=20 M0PPP, who had failed to copy me before from this QTH, as well as PA3ABK/= 2 and=20 G8HUH.

If anyone else can look for me this evening I'd appreci= ate it.=20 The loop is not very high and can be further improved if results this eve= ning=20 are encouraging.

73s
Roger G3XBM

--
<= /blockquote>



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