Return-Path: Received: from mtain-mc02.r1000.mx.aol.com (mtain-mc02.r1000.mx.aol.com [172.29.96.74]) by air-ma09.mail.aol.com (v129.4) with ESMTP id MAILINMA093-b5364d6e54c15c; Wed, 02 Mar 2011 09:31:29 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7101038000115; Wed, 2 Mar 2011 09:31:28 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Pun49-0006bW-QB for rs_out_1@blacksheep.org; Wed, 02 Mar 2011 14:30:13 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Pun49-0006bN-EU for rsgb_lf_group@blacksheep.org; Wed, 02 Mar 2011 14:30:13 +0000 Received: from smtp6.freeserve.com ([193.252.22.190]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Pun47-0006yR-Mb for rsgb_lf_group@blacksheep.org; Wed, 02 Mar 2011 14:30:13 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3629.me.freeserve.com (SMTP Server) with ESMTP id 118F070000AF for ; Wed, 2 Mar 2011 15:30:06 +0100 (CET) Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3629.me.freeserve.com (SMTP Server) with ESMTP id 04AB270000B4 for ; Wed, 2 Mar 2011 15:30:06 +0100 (CET) Received: from g4dmp.fsnet.co.uk (unknown [91.107.139.239]) by mwinf3629.me.freeserve.com (SMTP Server) with ESMTP id C132670000AF for ; Wed, 2 Mar 2011 15:30:05 +0100 (CET) X-ME-UUID: 20110302143005791.C132670000AF@mwinf3629.me.freeserve.com Message-ID: Date: Wed, 2 Mar 2011 14:29:55 +0000 To: rsgb_lf_group@blacksheep.org From: David Pratt References: <523d8738-db86-4950-bb5b-1b69289f6cfe@blur> In-Reply-To: <523d8738-db86-4950-bb5b-1b69289f6cfe@blur> MIME-Version: 1.0 User-Agent: Turnpike/6.07-M () X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: WRC-2012 proposal for 'near' 500kHz band(s) 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-sid: 3039ac1d604a4d6e54bf3475 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) But very few domestic broadcast receivers can be described as 'good', Warren. Even so, I can't imagine any receiver with an IF of 470kHz having an IF rejection of 60dB at 472kHz. If we do cause QRM to b/c receivers people, including the licensing authorities certainly will care about MW. 73 de David G4DMP In a recent message, "wd2xgj@gmail.com" writes >A good receiver will have something upwards of=A0 60dB=A0 i.f. rejection, >consumer models somewhat less. >The bottom line is that nobody cares about MW (except hams!) > --=20 + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - +