Return-Path: Received: from rly-md07.mx.aol.com (rly-md07.mail.aol.com [172.20.29.145]) by air-md09.mail.aol.com (v121_r4.4) with ESMTP id MAILINMD092-9174946d5474a; Mon, 15 Dec 2008 17:08:14 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md07.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMD077-9174946d5474a; Mon, 15 Dec 2008 17:08:08 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LCLbX-0008Qo-Qu for rs_out_1@blacksheep.org; Mon, 15 Dec 2008 22:07:55 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LCLbX-0008Qf-CY for rsgb_lf_group@blacksheep.org; Mon, 15 Dec 2008 22:07:55 +0000 Received: from smtp3.wanadoo.co.uk ([193.252.22.156] helo=smtp3.freeserve.com) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LCLbV-0002ja-PW for rsgb_lf_group@blacksheep.org; Mon, 15 Dec 2008 22:07:55 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3214.me.freeserve.com (SMTP Server) with ESMTP id BDFDD7000085 for ; Mon, 15 Dec 2008 23:07:47 +0100 (CET) Received: from AGB (unknown [91.109.35.27]) by mwinf3214.me.freeserve.com (SMTP Server) with SMTP id 4425D7000081 for ; Mon, 15 Dec 2008 23:07:45 +0100 (CET) X-ME-UUID: 20081215220745279.4425D7000081@mwinf3214.me.freeserve.com Message-ID: From: "Graham" To: References: <002901c95e97$87b3f400$0301a8c0@mal769a60aa920><004001c95ea5$b34c32e0$8d01a8c0@JAYDELL><006601c95ea8$c07ffde0$0301a8c0@mal769a60aa920><57a24ca70812150800w249cb152wf212a2566f607fb0@mail.gmail.com><009001c95ed1$feba2e40$0301a8c0@mal769a60aa920><20081215164355.8DCA5F3862@smtps02.kuleuven.be><00b201c95ee2$813c91e0$0301a8c0@mal769a60aa920><20081215214048.ycybajir85s84kcw@webmail4.kuleuven.be> <20081215214925.6ea23758@lurcher.twatt.local> In-Reply-To: <20081215214925.6ea23758@lurcher.twatt.local> Date: Mon, 15 Dec 2008 22:07:34 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.5027.908 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.5027.908 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Re: Re: 500/137 XBAND QSO Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-IP: 193.82.116.20 Typo error may be ..... ''Like I said you could put my PA (transistor) in your pocket'' Or could have a coat like Fagin's ? G :) -------------------------------------------------- From: "John P-G" Sent: Monday, December 15, 2008 9:49 PM To: Subject: Re: LF: Re: Re: 500/137 XBAND QSO > > On Mon, 15 Dec 2008 21:40:48 +0100 > Rik Strobbe wrote: > >> > 1/4 wave inv L at over 100 ft high. > >> The radiation resistance of this antenna must be about 5 Ohm, with a >> loss resistance of 20 Ohm the efficiency is 25%. > > > So I guess a TX power no greater than 4W would be sufficient to meet > the 1W ERP limit? > > A super efficient, optimally tuned Class-E single-FET amplifier > capable of the necessary power would indeed fit in your pocket. > > However, we still wait for some technical details of this super QRP DX > transmitter.... and wait.... and wait.... > > > Like the man himself said "What some claim and what they do is a > different thing, do not believe everything you hear." > > John GM4SLV > > > > > > > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.176 / Virus Database: 270.9.18/1850 - Release Date: > 12/15/2008 17:04 >