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[195.171.43.25]) by mx.google.com with ESMTP id vp1si14623690wjc.122.2014.02.18.05.50.09 for ; Tue, 18 Feb 2014 05:50:09 -0800 (PST) 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=@mx.aol.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WFknU-0003h9-AL for rs_out_1@blacksheep.org; Tue, 18 Feb 2014 13:33:16 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WFknT-0003h0-R0 for rsgb_lf_group@blacksheep.org; Tue, 18 Feb 2014 13:33:15 +0000 Received: from omr-d01.mx.aol.com ([205.188.252.208]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1WFknR-0008Pz-2a for rsgb_lf_group@blacksheep.org; Tue, 18 Feb 2014 13:33:14 +0000 Received: from mtaomg-mbc02.mx.aol.com (mtaomg-mbc02.mx.aol.com [172.26.221.144]) by omr-d01.mx.aol.com (Outbound Mail Relay) with ESMTP id 72274700000BC for ; Tue, 18 Feb 2014 08:33:11 -0500 (EST) Received: from core-dfe002a.r1000.mail.aol.com (core-dfe002.r1000.mail.aol.com [172.29.55.135]) by mtaomg-mbc02.mx.aol.com (OMAG/Core Interface) with ESMTP id 4067838000088 for ; Tue, 18 Feb 2014 08:33:11 -0500 (EST) References: <000e01cf2caa$fee840d0$6d01a8c0@DELL4> To: rsgb_lf_group@blacksheep.org In-Reply-To: <000e01cf2caa$fee840d0$6d01a8c0@DELL4> X-MB-Message-Source: WebUI MIME-Version: 1.0 From: Markus Vester X-MB-Message-Type: User X-Mailer: AOL Webmail 38394-BASIC Received: from 194.138.39.60 by webmail-d130.sysops.aol.com (149.174.18.20) with HTTP (WebMailUI); Tue, 18 Feb 2014 08:33:11 -0500 Message-Id: <8D0FAC51A0A6EB3-964-BBB@webmail-d130.sysops.aol.com> X-Originating-IP: [194.138.39.60] Date: Tue, 18 Feb 2014 08:33:11 -0500 (EST) x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1392730391; bh=5W1wk1Au0uwAQuAYw7Wd5oZoUGT/KAfsIE5P+gXruR8=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=FlcuS4wIzrhGvZ/XFCpHZaMQ6JZrftWm3DjEFrRamJ+jj394Kq4stTvImYdMyQsPM uMbaECcD3I1OsPcbyST8n/pKWSP8FZciMNFJRlTxah5wpALxP3aWgDn+IXPB09O2ca 0Uyj8+FjGb0eBKnCB9lB01JaYlyTEqypPYrT658M= x-aol-sid: 3039ac1add905303611764a0 X-Spam-Score: 0.5 (/) 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: Thanks Jay for this info. I like the switchable Beverage, using the coaxial cable both in common and odd mode.  One thing I has always puzzled me is which way is A and B: In analogy to a short directional coupler with capacitive and inductive coupling to a transmission line, an E-H or flag or K9AY antenna receives signals from the "back" side where the receiver is connected. On the other hand, it looks like a long Beverage would be sensitive towards the terminated side, like more like a leaky-waveguide forward coupler. Is there a transition between the two modes of operation (backward and forward), eg depending on wire length?  Best 73, Markus (DF6NM) [...] Content analysis details: (0.5 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [205.188.252.208 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markusvester[at]aol.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.6 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: c95b9a52470b89d54f2ef38e923e05cb Subject: Re: LF: Re: 136.1725 kHz DFCW Content-Type: multipart/alternative; boundary="--------MB_8D0FAC51A18B6F9_964_2DE6_webmail-d130.sysops.aol.com" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=FORGED_AOL_TAGS,HTML_30_40, HTML_FONTCOLOR_UNKNOWN,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 This is a multi-part message in MIME format. ----------MB_8D0FAC51A18B6F9_964_2DE6_webmail-d130.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Thanks Jay for this info. I like the switchable Beverage, using the=C2=A0co= axial cable both in common and odd mode.=20 =C2=A0 One thing I has always puzzled me=C2=A0is which=C2=A0way is A and B:=C2=A0I= n analogy to a short directional coupler with capacitive and inductive coup= ling to a transmission line, an E-H=C2=A0or flag or K9AY antenna=C2=A0recei= ves signals from the "back" side where the receiver is connected.=C2=A0On t= he other hand, it looks like=C2=A0a long Beverage=C2=A0would be=C2=A0sensit= ive=C2=A0towards the terminated side, like more=C2=A0like a leaky-waveguide= forward coupler.=C2=A0Is there a transition between the=C2=A0two modes of = operation (backward and forward), eg=C2=A0depending on=C2=A0wire length? =C2=A0 Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: jrusgrove <jrusgrove@comcast.net> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org> Verschickt: Di, 18 Feb 2014 2:13 pm Betreff: Re: LF: Re: 136.1725 kHz DFCW Markus =C2=A0 Grabber 1: Harris RF-590 / large K9AY (pointed east)=C2=A0 http://www.w1vd.= com/k9ay11.pdf =C2=A0 Grabber 2: R-75 / 1000' BOG (directional on=C2=A0500 kHz ... bi-directional= on 137 kHz) http://www.w1vd.com/500kHzBOG.pdf =C2=A0 Jay W1VD=C2=A0 WD2XNS=C2=A0 WE2XGR/2=C2=A0 WG2XRS/2 ... =C2=A0 ----------MB_8D0FAC51A18B6F9_964_2DE6_webmail-d130.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Thanks Jay for this info. I like the switchable Bev= erage, using the coaxial cable both in common and odd mode.
 
One thing = I has always puzzled me is which way is A and B: In analogy = to a short directional coupler with capacitive and inductive coupling to a = transmission line, an E-H or flag or K9AY antenna receives signal= s from the "back" side where the receiver is connected. On the other h= and, it looks like a long Beverage would be sensitive t= owards the terminated side, like more like a leaky-waveguide forward c= oupler. Is there a transition between the two modes of operation = (backward and forward), eg depending on wire length?
 
Best 73,
Markus (DF6NM)

-----Urspr=C3=BCngliche Mitteilung-----
Von: jrusgrove <jrusgrove@comcast.net>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Di, 18 Feb 2014 2:13 pm
Betreff: Re: LF: Re: 136.1725 kHz DFCW

Markus
 
Grabber 1: Harris RF-590 / large K9AY (poi= nted east)  http://www.w1vd.com/k9ay11.pdf
 
Grabber 2: R-75 / 1000' BOG (directional o= n 500 kHz ... bi-directional on 137 kHz) http://www.w1vd.com/500kHzBOG.pdf
 
Jay W1VD  WD2XNS  WE2XGR/2 = WG2XRS/2
...
 
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