Return-Path: Received: from mtain-dj02.r1000.mx.aol.com (mtain-dj02.r1000.mail.aol.com [172.19.187.138]) by air-md01.mail.aol.com (v129.4) with ESMTP id MAILINMD012-8b754c050ccc3cc; Tue, 01 Jun 2010 09:36:12 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dj02.r1000.mx.aol.com (Internet Inbound) with ESMTP id EB29E380000EB; Tue, 1 Jun 2010 09:36:09 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OJRcr-0003eq-C0 for rs_out_1@blacksheep.org; Tue, 01 Jun 2010 14:35:25 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OJRcr-0003eg-0Y for rsgb_lf_group@blacksheep.org; Tue, 01 Jun 2010 14:35:25 +0100 Received: from mhost02c.leeds.ac.uk ([129.11.76.154]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OJRcn-0005Cp-Ak for rsgb_lf_group@blacksheep.org; Tue, 01 Jun 2010 14:35:24 +0100 Received: from APOLLO2.ds.leeds.ac.uk (apollo2.leeds.ac.uk [129.11.5.5]) by mhost02c.leeds.ac.uk (8.14.3/8.14.3) with ESMTP id o51DZECZ014806 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT) for ; Tue, 1 Jun 2010 14:35:14 +0100 (BST) Received: from HERMES8.ds.leeds.ac.uk ([fe80::39ce:23e:d0b5:7e24]) by APOLLO2.ds.leeds.ac.uk ([129.11.5.5]) with mapi; Tue, 1 Jun 2010 14:35:14 +0100 From: Chris Trayner To: "rsgb_lf_group@blacksheep.org" Date: Tue, 1 Jun 2010 14:35:13 +0100 Thread-Topic: LF: QRO / QRP Thread-Index: AcsBj0OfV/PiW3I2QoSs7sWoxlBgCQ== Message-ID: <81893174-4350-4FE1-8D70-4FF4EBB44BCE@leeds.ac.uk> References: <4C0505F3.23023.3198CFC@mike.dennison.ntlworld.com>,<1OJR3q-0nK4tk0@fwd09.t-online.de> In-Reply-To: Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US, en-GB MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: QRO / QRP Content-Type: text/plain; charset="us-ascii" 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=TO_ADDRESS_EQ_REAL 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-sid: 3039cdbc9d064c050cc95c84 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Hi Rik, > interesting approach that QRP not only includes power (input, output, ER= P ...) but also dimensions. We meet something like that at work, where there are THz researchers as we= ll as those of us interested in (V)LF. They look down their noses at it if there aren't twelve zeroes in the freq= uency; we look down our noses at it if you can't build a small village inside a= photon. 73, Chris G4OKW ----------------------- Dr Chris Trayner School of Electronic & Electrical Engineering, The University of Leeds, Leeds LS2 9JT, United Kingdom Tel: +44 113 34 32053 Fax: +44 113 34 32032