Return-Path: Received: (qmail 14396 invoked from network); 27 Jan 2001 00:22:46 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by 10.226.25.101 with SMTP; 27 Jan 2001 00:22:46 -0000 Received: (qmail 6968 invoked from network); 27 Jan 2001 00:26:16 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 27 Jan 2001 00:26:16 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14MJ63-00073I-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 27 Jan 2001 00:20:03 +0000 Received: from imo-r13.mx.aol.com ([152.163.225.67]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14MJ61-00072o-00 for rsgb_lf_group@blacksheep.org; Sat, 27 Jan 2001 00:20:02 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from G0MRF@aol.com by imo-r13.mx.aol.com (mail_out_v29.5.) id l.b6.106c8a8a (4252) for ; Fri, 26 Jan 2001 19:19:16 -0500 (EST) From: G0MRF@aol.com Message-ID: Date: Fri, 26 Jan 2001 19:19:15 EST Subject: Re: LF: RE: VA3LK seen in ON To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Mailer: AOL 5.0 for Windows sub 105 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: In a message dated 1/26/01 10:10:24 AM GMT Standard Time, ACTALBOT@dera.gov.uk writes: << how about several levels of frequency shift in say 1Hz and just learn a new visual code. Just as an example of a visual code, 7 frequency levels, using two sucessive symbols per character gives potential for 49 different symbols, enough for letters numbers and a few punctuation. >> Good idea for strong signals Andy, but for the task in hand you would need to accurately position them between interfering Loran spurs. Also a 7Hz wide signal would seem to be outside the 2Hz across the screen currently necessary for Larry to see a 500mW signal from the UK. But, if the resulting tone sequence from your receiver could be automatically decoded into a character on the screen........ 73 David