Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-de04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0D1FC38000098; Fri, 8 Jun 2012 09:29:06 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SczEo-00081q-4V for rs_out_1@blacksheep.org; Fri, 08 Jun 2012 14:28:26 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SczEn-00081h-Mn for rsgb_lf_group@blacksheep.org; Fri, 08 Jun 2012 14:28:25 +0100 Received: from out1.ip04ir2.opaltelecom.net ([62.24.128.240]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1SczEm-0007gC-4V for rsgb_lf_group@blacksheep.org; Fri, 08 Jun 2012 14:28:24 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ag0FALb40U9cHnWs/2dsb2JhbABFnnMDlVeBCIITFAEBA0kCFAoDCwIIAgEHARw5AQQaBggcHQECAgEBh365IpEmA4gNhTGXW4Jg X-IronPort-AV: E=Sophos;i="4.77,377,1336345200"; d="scan'208,217";a="374808189" Received: from host-92-30-117-172.as13285.net (HELO xphd97xgq27nyf) ([92.30.117.172]) by out1.ip04ir2.opaltelecom.net with SMTP; 08 Jun 2012 14:28:22 +0100 Message-ID: <000c01cd457a$92dfce80$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: "rsgb" Cc: Date: Fri, 8 Jun 2012 13:28:20 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) 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: MF I have been investigating the K9AY LOOP system and could easily convert my 40m quad loop. Instead of a fixed resistor going to Earth at one end use a 1 Kohm variable resistor and adjust for best front to back in the selected direction, although at my QTH noise is not a problem in any direction, so the advantage would be minimal except for some gain maybe. A motor driven resistor might be useful for some. I get good results with the bi directional 40m loop N/S and do not feel that I am missing anything but I might try the K9AY if I get time. I do not use a preamp, but on 137 it might enhance sensitivity. mal/g3kev . [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [62.24.128.240 listed in list.dnswl.org] 0.0 FSL_XM_419 Old OE version in X-Mailer only seen in 419 spam -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 FSL_UA FSL_UA 0.0 AXB_XMAILER_MIMEOLE_OL_024C2 AXB_XMAILER_MIMEOLE_OL_024C2 X-Scan-Signature: 75bd9e83b9a4dd6aff3296cebc5bb885 Subject: LF: K9AY ANT Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CD457A.927BB580" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE 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: 0:2:380704672:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40cc4fd1fe22220a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CD457A.927BB580 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MF I have been investigating the K9AY LOOP system and could easily convert = my 40m quad loop. Instead of a fixed resistor going to Earth at one end = use a 1 Kohm variable resistor and adjust for best front to back in the = selected direction, although at my QTH noise is not a problem in any = direction, so the advantage would be minimal except for some gain maybe. A motor driven resistor might be useful for some.=20 I get good results with the bi directional 40m loop N/S and do not feel = that I am missing anything but I might try the K9AY if I get time. I do not use a preamp, but on 137 it might enhance sensitivity. mal/g3kev . ------=_NextPart_000_0009_01CD457A.927BB580 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
MF
I have been investigating the K9AY LOOP system = and could=20 easily convert my 40m quad loop. Instead of a fixed resistor going to = Earth at=20 one end use a 1 Kohm variable resistor and adjust for best front to back = in the=20 selected direction, although at my QTH noise is not a problem in any = direction,=20 so the advantage would be minimal except for some gain = maybe.
A motor driven resistor might be useful for = some.=20
I get good results with the bi directional 40m = loop N/S=20 and do not feel that I am missing anything but I might try the K9AY if I = get=20 time.
I do not use a preamp, but on 137 it might = enhance=20 sensitivity.
mal/g3kev
.
 
 
 
 
------=_NextPart_000_0009_01CD457A.927BB580--