Return-Path: Received: (qmail 23901 invoked from network); 1 Apr 2003 04:02:24 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 1 Apr 2003 04:02:24 -0000 Received: (qmail 25500 invoked from network); 1 Apr 2003 04:02:27 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 1 Apr 2003 04:02:26 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 190CsF-0001rQ-8L for rsgb_lf_group-outgoing@blacksheep.org; Tue, 01 Apr 2003 04:55:47 +0100 Received: from [63.171.43.2] (helo=ns2.genesis-technology.com) by post.thorcom.com with esmtp (Exim 4.14) id 190CsA-0001rH-FZ for rsgb_lf_group@blacksheep.org; Tue, 01 Apr 2003 04:55:42 +0100 Received: from we0h ([65.165.20.192]) by ns2.genesis-technology.com (8.10.2/8.10.2) with SMTP id h313tXH05027; Mon, 31 Mar 2003 21:55:34 -0600 From: "WE0H" To: rsgb_lf_group@blacksheep.org Cc: "Bill Ashlock @ Hotmail" Date: Mon, 31 Mar 2003 21:56:03 -0600 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 In-reply-to: Importance: Normal Subject: LF: RE: GAIN Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-15.3 required=5.0tests=IN_REP_TO,MSGID_GOOD_EXCHANGE,ORIGINAL_MESSAGE, QUOTED_EMAIL_TEXTversion=2.51 X-Spam-Checker-Version: SpamAssassin 2.51 (1.174.2.5-2003-03-20-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I got a measly 1304 miles with my 1w beacon and a North/South pointing loop this winter. The receiving station was Southwest of me to boot. I followed Bill's advice and it works. You have to follow his advice to the exact word or forget it as it will work like crap. Heck Bill even made a loop that was 25 feet by 25 feet and it still made it several hundred miles on less than a watt. Series resonate it and run the right ferrite cored transformer. No exceptions. Imagine if Bill was running 1000w or more, he would have one heck of a signal. Yea high current, but he runs copper water pipe for conductors. High current can be dealt with just like tree burning high voltages can so that isn't an excuse for not using a loop if you live around many trees. Mike>WE0H http://www.we0h.us/lf -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Ashlock,William Sent: Monday, March 31, 2003 1:11 PM To: 'rsgb_lf_group@blacksheep.org' Subject: LF: RE: GAIN Hi Ole Buddy! > I measured the gain today between my 90 metre perimiter vertical loop resonated on 137 khz and > my vertical system. The vertical has a 20 db gain over the loop measuring the noise floor. Using the Decca RF pre amp with > the loop gets close to the vertical performance but with the disadvantage of being only bi-directional. Measuring a signal >above the NF indicates the same 20 db gain by the vertical. The band is quiet with no environmental or locally generated >noise problems.The vertical is way ahead of the loop at this QTH. The loop is not worth considering as a TX > antenna given the above results. This recent test confirms previous observations. I see your still having problems with understanding how to connect up to that loop - transformer ratios and all. Don't give up; you'll figure it out one of these days. Bill Ashlock PS: I have to admit my TX loop didn't set the record distance over here this season........... but my 1785 miles came within 35 miles of it !