Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df05.r1000.mx.aol.com (Internet Inbound) with ESMTP id C3B5938000098; Tue, 21 Jun 2011 11:25:39 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QZ2o2-0004XR-Fb for rs_out_1@blacksheep.org; Tue, 21 Jun 2011 16:23:58 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QZ2o1-0004XI-Sr for rsgb_lf_group@blacksheep.org; Tue, 21 Jun 2011 16:23:57 +0100 Received: from smtp-vbr4.xs4all.nl ([194.109.24.24]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QZ2ny-0006gf-T0 for rsgb_lf_group@blacksheep.org; Tue, 21 Jun 2011 16:23:57 +0100 Received: from pc-roelof (ndb.demon.nl [82.161.81.65]) by smtp-vbr4.xs4all.nl (8.13.8/8.13.8) with ESMTP id p5LFNmLH075633 for ; Tue, 21 Jun 2011 17:23:53 +0200 (CEST) (envelope-from roelof@ndb.demon.nl) To: rsgb_lf_group@blacksheep.org References: <000c01cb5a7a$44cfcc50$0401a8c0@xphd97xgq27nyf> <4C1A271605FB0B62@smtp208.alice.it> <4C9A8CC5.30305@gmx.com> <4C9B3FCE.5080700@gmx.com> <7C83B6E4275F422A83872B7E0134B689@Hugh> Date: Tue, 21 Jun 2011 17:23:45 +0200 MIME-Version: 1.0 From: "Roelof Bakker" Message-ID: In-Reply-To: <7C83B6E4275F422A83872B7E0134B689@Hugh> User-Agent: Opera Mail/11.11 (Win32) X-Virus-Scanned: by XS4ALL Virus Scanner X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Content-Type: text/plain; charset=iso-8859-15; format=flowed; delsp=yes Subject: Re: LF: PA0RDT polarisation 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:472168544:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40d94e00b7f368e9 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello Hugh, Though it may not make sense, mounting orientation is irrelevant. And the feed line does not need to run vertical either. I have tested the antenna at the same "position in space" with two ways of mounting. The first one was the normal way with a vertical mast in the garden. The second way was using the same mast and cable length, but this time extended horizontal from an upstairs window. The receiver was a battery operated selective level meter, which could be read to 0.5 dB. The test was carried out receiving the vertical polarized signal of NDB ONO on 399.5 kHz, 59 km away. The measured levels agreed within 1 dB! So the good news is when the need arises, the antenna can be mounted on a pole and pushed out of the window! Best regards, Roelof Bakker, pa0rdt