Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w0OIVDVg001425 for ; Wed, 24 Jan 2018 19:31:14 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eePjS-0008Kz-U8 for rs_out_1@blacksheep.org; Wed, 24 Jan 2018 18:25:10 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eePjS-0008Kq-4n for rsgb_lf_group@blacksheep.org; Wed, 24 Jan 2018 18:25:10 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eePjN-0006N0-Ti for rsgb_lf_group@blacksheep.org; Wed, 24 Jan 2018 18:25:08 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 31BC320F7E for ; Wed, 24 Jan 2018 19:25:05 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1516818305; bh=XWxME9GKnTu9PxuMRV666UpNK1SML4jFedryKdqj5+k=; h=Date:From:To:Subject:From; b=ZMYKKM9v8qnAPBE7XW5NQZ+12DyYyDUK/k8nSsC7/S1LpRrAES7RDAIz152839Prj i7/8kKD9mWaDb04wNWhuZDAXLAA30veHsdvZudYr7kvY+3Myi145tvNv3KxtQRky09 ctEdyd+B2jdVQFnASLmWZJqKpqeAx64GpptYzSUJFLP8xwbBjJMTC/meETmCnQZF7I NyZF1s5XrnV2b1TFnu8NrQwYzf776jW+WzzPB7buX6VqCnhFXJ+Od+ooOh64tMvf12 zHDzTaaOMZ5jDIo46/sP+XXFOhXwkbWEyAnXzBUZ9kdss53n57bnAPFvph3D+6ZN49 CU3PCgluKB+xg== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3zRYVm4yM1z9rxF for ; Wed, 24 Jan 2018 19:25:04 +0100 (CET) Message-ID: <5A68CB59.4080302@posteo.de> Date: Wed, 24 Jan 2018 19:07:21 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <001a01d394ff$8f3f54a0$adbdfde0$@go2.pl> In-Reply-To: X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Am 24.01.2018 15:00, schrieb Roger Lapthorn: > To get best results I think you need LOW conductivity around the > earth-electrode "antenna", so the signal spread (and hence effective > loop area) is greatest. Placing near a river is likely to give poor > results in my experience. I agree. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4ead635eadbaebfaa92cfec77deb715d Subject: Re: LF: RE: 136kHz WSPR experiment Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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=none 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 Am 24.01.2018 15:00, schrieb Roger Lapthorn: > To get best results I think you need LOW conductivity around the > earth-electrode "antenna", so the signal spread (and hence effective > loop area) is greatest. Placing near a river is likely to give poor > results in my experience. I agree. Best would be a stony mountain sourrounded by a small lake rivulet. For example like here: http://k7fry.com/grid/?qth=JN49AK54QN&from=JN49AK64OK !!!! (Unfortunately the directivity of that earth antenna is almost orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/ Ah and BTW it would be good to have a good Restaurant near that location, just to spend a few hours there while transmitting. Sharing some of my thoughts... :-) 73, Stefan