Return-Path: Received: (qmail 18218 invoked from network); 5 May 2000 12:26:50 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by teachers.core.plus.net.uk with SMTP; 5 May 2000 12:26:50 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12nh4j-0005Yp-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 05 May 2000 13:19:21 +0100 Content-Transfer-Encoding: 8bit Received: from mail.cc.kuleuven.ac.be ([134.58.10.6]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12nh4c-0005Yj-00 for rsgb_lf_group@blacksheep.org; Fri, 05 May 2000 13:19:14 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from LCBD15.fys.kuleuven.ac.be (LCBD15.fys.kuleuven.ac.be [134.58.80.15]) by mail.cc.kuleuven.ac.be (8.9.3/8.9.0) with SMTP id OAA764626 for ; Fri, 5 May 2000 14:18:55 +0200 Message-ID: <3.0.1.16.20000505141455.21ffadcc@mail.cc.kuleuven.ac.be> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Sender: pb623250@mail.cc.kuleuven.ac.be X-Mailer: Windows Eudora Pro Version 3.0.1 (16) Date: Fri, 05 May 2000 14:14:55 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: Re: LF: Spectran accuracy In-reply-to: <39129641.7B25DF02@netscapeonline.co.uk> References: <3617AC3245C2D1118A840000F805359C017528B5@pdw-mercury-1.dera.gov.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Everybody who is involved in extreme narrowband mode such as QRSS and DFCW will confirm that signals that are 10 to 20dB below the 'normal CW' detectable level can still be copied and lead to a QSO. OK, it takes about 30 minutes or more but this time period is accepted for Meteor Scatter contact on VHF (I believe that the time limit for a valid QSO is 2 hours for MS). Nothing wrong with being a 'die hard' CW operator, but that is no reason for neglecting the fact that extreme narrowband modes are superior to 'normal speed' CW when it comes to signal to noise ratio. Both theory and practise proves this. 73, Rik ON7YD >Keep it SIMPLE all that is required is a good cw operator at each end with >well filtered, selective symmetrical EARS able to read morse through qrn and >qrm and a steady hand for sending. >There is none of this palaver required on the other bands so why 136 khz. CW >operators in Europe are working ZL and other dx locations frequently through >qrn, qrm and other difficulties on 160 metres. The cw method is simple and very >effective for those competent and experienced and very COST EFFECTIVE for radio >amateur type of communications. > ....