Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 8B96D380000B5; Tue, 2 Aug 2011 15:13:56 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QoKOt-0006Cn-Ag for rs_out_1@blacksheep.org; Tue, 02 Aug 2011 20:13:11 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QoKOs-0006Ce-Us for rsgb_lf_group@blacksheep.org; Tue, 02 Aug 2011 20:13:10 +0100 Received: from mail-gy0-f171.google.com ([209.85.160.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QoKOq-0005sA-C9 for rsgb_lf_group@blacksheep.org; Tue, 02 Aug 2011 20:13:10 +0100 Received: by gyh20 with SMTP id 20so87949gyh.16 for ; Tue, 02 Aug 2011 12:13:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=lXXssYgkQ1sREDduN79NGkI2T6dAHko58OQCy3Lybuo=; b=lm76x9QiV1c4MeNCH0AtI9sDWOv6QdFgQl0KGZ10ULZ44aZnM+CqjtgZOl48SE0vcq ykgldfW3hGIIbvh3oKYJDJAjS38mpMkY0yC/x8KxlqTaKl+NquN/SF4feV4H0sKhiH4g GDBpZAyS2R7Zz0UdjZq6ZYZD6XvZl4twWE4j4= MIME-Version: 1.0 Received: by 10.142.4.24 with SMTP id 24mr4109240wfd.143.1312312381521; Tue, 02 Aug 2011 12:13:01 -0700 (PDT) Received: by 10.142.108.4 with HTTP; Tue, 2 Aug 2011 12:13:01 -0700 (PDT) In-Reply-To: <001601cc5147$61942b50$0401a8c0@xphd97xgq27nyf> References: <001601cc5147$61942b50$0401a8c0@xphd97xgq27nyf> Date: Tue, 2 Aug 2011 15:13:01 -0400 Message-ID: From: Warren Ziegler To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Poor antennas Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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: 0:2:454025376:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d243.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d60d84e384c7433f2 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Mal, Don't discount the increased interference from switching power supplies, plasma televisions, PLTs and the like. Everyone is battling a higher noise floor these days. My suggestion: get a sail boat and operate from it! --=20 73 Warren K2ORS =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XGJ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XSH/23 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XEB/2 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XGR/1 On Tue, Aug 2, 2011 at 3:07 PM, mal hamilton wrote: > LF > It now takes hundreds of watts to be observed or heard around EU on=A0137= Khz > whereas some years back less than 200 watts achieved a good result like a > QSO on CW. The 130 watt Ropex used by many resulted in many CW QSO'S, > In those days most Amateurs were using normal antennas like loaded inv L > systems or some sort of vertical for both RX es TX. > At present the trend seems to be probe or small loop antennas and these d= o > not seem to produce enough signal capture to the RX. > The DX that I have worked in the past all had large antenna systems. > These are my observations, maybe others have another theory. > de mal/g3kev >