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[195.171.43.25]) by mx.google.com with ESMTP id t9si443123eeo.335.1969.12.31.16.00.00; Thu, 12 Sep 2013 11:16:23 -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=fail header.i=@gmail.com; dmarc=fail (p=NONE dis=NONE) header.from=gmail.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1VKBQA-0008Ca-QQ for rs_out_1@blacksheep.org; Thu, 12 Sep 2013 19:15:14 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VKBQA-0008CR-4v for rsgb_lf_group@blacksheep.org; Thu, 12 Sep 2013 19:15:14 +0100 Received: from mail-qe0-f52.google.com ([209.85.128.52]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1VKBQ7-0006wJ-8x for rsgb_lf_group@blacksheep.org; Thu, 12 Sep 2013 19:15:13 +0100 Received: by mail-qe0-f52.google.com with SMTP id i11so140240qej.39 for ; Thu, 12 Sep 2013 11:15:09 -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:date:message-id:subject:from:to:content-type; bh=ihNmjFVgJ1p6GBexAFDQpX8TwU/GTurb/OPVTUsOh4E=; b=HaoPBBlXro8H8zWnoMOcGb/IqjTeHzAZ/xPjLiJTAybu1VqLN40WKd/IbTpO8Xxjxi ry5nU1qeCOED5vsa0TJAI6i1xZS8kvPfHg4ab89qM8ihN/VC1dQ/uWWKC0482eUOtpCw p1WSABAU6/0gjzOo3EaPp1VzftDOUk22V617DnarBz6c7J/h92UzUHhVqYusggZxJJAu RcCiiVTTc9t65Yu0CQuGB2ai0qD7wlUD1HtrDxHlOviBlg4Qb1j6Wdz70uGH10qSO3w2 hwJDx64wvWmhk9oLtorfjkkAxTjsRIkzbKMABqcobLzkdlPaxZhpT4+8XD56kte7vVnE tV2w== MIME-Version: 1.0 X-Received: by 10.49.130.162 with SMTP id of2mr15967806qeb.37.1379009709361; Thu, 12 Sep 2013 11:15:09 -0700 (PDT) Received: by 10.229.11.138 with HTTP; Thu, 12 Sep 2013 11:15:09 -0700 (PDT) Date: Thu, 12 Sep 2013 19:15:09 +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: '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. [...] 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 [209.85.128.52 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: c0e6e8bcdc231effb9da2003d606d9a2 Subject: LF: 630m WSPR this evening Content-Type: multipart/alternative; boundary=047d7bd6a880de921304e633b7cb X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE, 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: 134 --047d7bd6a880de921304e633b7cb Content-Type: text/plain; charset=ISO-8859-1 '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 --047d7bd6a880de921304e633b7cb Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
'Recently I moved 350m east (!) to a new QTH and I'= ;ve been experimenting with 630m WSPR.

My initial tests were with t= he 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). A= lthough I managed to get reports from G, ON and PA, it was clear that resul= ts 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 sh= orter and due to buried wires and pipes criss-crossing the lawn. On RX it i= s working very well though and I have copied most of the nearer Europeans o= n 630m WSPR.

This afternoon I converted the earth-electrode antenna to an "in t= he 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 v= ia a 3C90 step-down toroid.

Initial encouraging reports include first spots from M0PPP, who had fai= led 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 e= ncouraging.

73s
Roger G3XBM

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