Return-Path: Received: (qmail 25306 invoked from network); 14 Nov 2002 09:39:46 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 14 Nov 2002 09:39:46 -0000 Received: (qmail 6924 invoked from network); 14 Nov 2002 09:38:29 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 14 Nov 2002 09:38:29 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18CGQL-0000JO-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 14 Nov 2002 09:36:33 +0000 Received: from [213.218.77.54] (helo=cmailENV2.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.10) id 18CGQL-0000JF-00 for rsgb_lf_group@blacksheep.org; Thu, 14 Nov 2002 09:36:33 +0000 Received: from [62.21.168.45] (helo=w8k3f0.freeler.nl) by cmailENV2.svr.pol.co.uk with esmtp (Exim 3.35 #1) id 18CGQF-0002Ef-00 for rsgb_lf_group@blacksheep.org; Thu, 14 Nov 2002 09:36:29 +0000 Message-ID: <5.1.0.14.0.20021114102459.00aa7de0@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Thu, 14 Nov 2002 10:38:26 +0100 To: rsgb_lf_group@blacksheep.org From: "Dick Rollema" In-reply-to: <004801c28bb7$b2c00580$015e89d9@jackie> References: <3DD35969.30941.58250D@localhost> MIME-Version: 1.0 Subject: Re: LF: Loop vs Marconi Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=-0.2 required=5.0tests=BIG_FONT,IN_REP_TO,REFERENCES,SPAM_PHRASE_00_01version=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Content-transfer-encoding: 8bit Steve,

You can make a  loop omnidirectional by mounting it horizontal. That makes it respond to the vertically polarized component of the EM field, so of no use on LF.

Another way is to use two loops crossed under 90 degrees. But you have to introduce an extra 90 degrees phase shift in the signal from one of the loops  before combining them.

73, Dick, PA0SE

At 08:27 14-11-02 +0000, you wrote:
Anyone found a way to make a loop omnidirectional?

Steve