Return-Path: Received: (qmail 9798 invoked from network); 16 Jan 2002 16:10:32 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 16 Jan 2002 16:10:32 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 14505 invoked from network); 16 Jan 2002 16:10:34 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 16 Jan 2002 16:10:34 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16QsXv-0007J9-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 16 Jan 2002 16:04:15 +0000 Received: from d06lmsgate-4.uk.ibm.com ([195.212.29.4]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16QsXt-0007J1-00 for rsgb_lf_group@blacksheep.org; Wed, 16 Jan 2002 16:04:13 +0000 Received: from d06relay02.portsmouth.uk.ibm.com (d06relay02.portsmouth.uk.ibm.com [9.166.84.148]) by d06lmsgate-4.uk.ibm.COM (1.0.0) with ESMTP id PAA37092 for ; Wed, 16 Jan 2002 15:49:40 GMT Received: from usa.net (ss01.raleigh.ibm.com [9.37.3.89]) by d06relay02.portsmouth.uk.ibm.com (8.11.1m3/NCO v5.01) with ESMTP id g0GG07F172192 for ; Wed, 16 Jan 2002 16:00:12 GMT Message-ID: <3C45A3F2.A575633F@usa.net> Date: Wed, 16 Jan 2002 17:01:54 +0100 From: "Alberto di Bene" X-Mailer: Mozilla 4.78 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: G3YXM's Jason test sigs References: <5.1.0.14.0.20020116102434.00a7a7f8@gemini.herts.ac.uk> <5.1.0.14.0.20020116135224.00af0e08@gemini.herts.ac.uk> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: James Moritz wrote: > you would need 17 tones - then in the example it would be 13+16 mod 17 = > 12; perhaps this is something like what Stuart is suggesting? > Dear Jim and the group, exactly, with 17 tones, taking into account the sign as indicator of 'wraparound', it is possible to encode the 16 deltas, with the modulo operator. This is the alternate scheme. It seems that the consensus is on reducing the bandwidth. So please Johan, wait a little before modifying the PIC code that drives the DDS... Thanks for your input 73 Alberto I2PHD