Return-Path: Received: (qmail 18420 invoked from network); 10 May 2000 17:01:15 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by bells.core.plus.net.uk with SMTP; 10 May 2000 17:01:15 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12pYkI-0003Bg-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 10 May 2000 16:49:58 +0100 Received: from helios.herts.ac.uk ([147.197.200.2]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12pYkF-0003Bb-00 for rsgb_lf_group@blacksheep.org; Wed, 10 May 2000 16:49:55 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from [147.197.200.44] (helo=gemini) by helios.herts.ac.uk with esmtp (Exim 3.11 #1) id 12pYgz-0001Lm-00 for rsgb_lf_group@blacksheep.org; Wed, 10 May 2000 16:46:33 +0100 Message-ID: <12939.200005101555@gemini> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 From: "James Moritz" Organization: University of Hertfordshire To: rsgb_lf_group@blacksheep.org Date: Wed, 10 May 2000 16:56:11 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit Subject: LF: RE: 1Hz Bandwidths In-reply-to: <3617AC3245C2D1118A840000F805359C017528CD@pdw-mercury-1.dera.gov.uk> X-Mailer: Pegasus Mail for Win32 (v3.11) Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: > All signals sound like a perfect audio tone - even > static crashes sound like a carrier with slow fading on it ! Loran lines > are tones in this BW. But it really does bring signals out of the noise, > even in the severe thunder storms of the last few days. > > Andy G4JNT > > Dear Andy & Group, With a 1Hz Bandwidth, isn't it rather difficult to find the signals in the first place? How do you tell if what you are receiving is a signal or not? It seems to me that some radically different operating procedures will have to be devised to exploit extreme narrow band techniques such as these! Cheers, Jim Moritz 73 de M0BMU