Return-Path: Received: from rly-ma06.mx.aol.com (rly-ma06.mail.aol.com [172.20.116.50]) by air-ma01.mail.aol.com (v121.4) with ESMTP id MAILINMA014-8af47cd4a5719b; Tue, 04 Mar 2008 08:10:58 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-ma06.mx.aol.com (v121.4) with ESMTP id MAILRELAYINMA061-8af47cd4a5719b; Tue, 04 Mar 2008 08:10:49 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JWWuf-0004sO-6a for rs_out_1@blacksheep.org; Tue, 04 Mar 2008 13:10:33 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JWWue-0004sD-Ra for rsgb_lf_group@blacksheep.org; Tue, 04 Mar 2008 13:10:32 +0000 Received: from pne-smtpout2-sn2.hy.skanova.net ([81.228.8.164]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1JWWub-0008W6-IQ for rsgb_lf_group@blacksheep.org; Tue, 04 Mar 2008 13:10:32 +0000 Received: from [127.0.0.1] (81.232.131.201) by pne-smtpout2-sn2.hy.skanova.net (7.3.129) (authenticated as u33233109) id 47A02DB900B65B82 for rsgb_lf_group@blacksheep.org; Tue, 4 Mar 2008 14:10:20 +0100 Message-ID: <47CD4A3C.4020206@telia.com> Date: Tue, 04 Mar 2008 14:10:20 +0100 From: "Johan H. Bodin" User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <88d2415e0803040455r1da06941l36e4a20ecd296ceb@mail.gmail.com> <47CD4914.90800@telia.com> In-Reply-To: <47CD4914.90800@telia.com> X-Karma: -1000: uceprotect.blacklist: if-match(0) => return-bad(1.0) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: TA on 500kHz Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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=0.0 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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n X-Mailer: Unknown (No Version) I meant "rejectivity" and "narrow notch filter" of course... I wrote: > Indeed. > > The selectivity, and hence the QRM rejecting performance, of most e-mail > receivers can be greatly improved simply by inserting a narrow filter in > the signal path. With careful adjustment, the shape factor can be really > impressive. > > 73 > Johan SM6LKM