Return-Path: Received: (qmail 9134 invoked from network); 24 Feb 2005 12:23:08 -0000 Received: from unknown (HELO ptb-spamcore01.plus.net) (192.168.71.1) by ptb-mailstore01.plus.net with SMTP; 24 Feb 2005 12:23:08 -0000 Received: from mailnull by ptb-spamcore01.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1D4I2B-0007h0-1H for dave@picks.force9.co.uk; Thu, 24 Feb 2005 12:24:01 +0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore01.plus.net with esmtp (Exim 4.32; FreeBSD) id 1D4I2A-0007gp-Me for dave@picks.force9.co.uk; Thu, 24 Feb 2005 12:23:58 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1D4I1I-000CMg-LD for dave@picks.force9.co.uk; Thu, 24 Feb 2005 12:23:04 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1D4Hyd-00034f-RQ for rs_out_1@blacksheep.org; Thu, 24 Feb 2005 12:20:19 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1D4Hyc-00033c-HA for rsgb_lf_group@blacksheep.org; Thu, 24 Feb 2005 12:20:18 +0000 Received: from relay.sotline.ru ([80.89.139.226]) by relay.thorcom.net with esmtp (Exim 4.43) id 1D4HyZ-00015s-Nw for rsgb_lf_group@blacksheep.org; Thu, 24 Feb 2005 12:20:18 +0000 Received: from astral.omskcity.com (mxs.sotline.ru [80.89.139.227]) by relay.sotline.ru (8.x.x) with ESMTP id j1OCKB5r060248 for ; Thu, 24 Feb 2005 18:20:12 +0600 (OMST) (envelope-from fitec@omskcity.com) Received: from noname.nodomain.nowhere (host198.m02.dial.sotline.ru [81.176.51.198]) by astral.omskcity.com (8.x.x) with ESMTP id j1OCKA15022207 for ; Thu, 24 Feb 2005 18:20:10 +0600 (OS) Received: from localhost (fitec@localhost) by noname.nodomain.nowhere (8.8.5/8.8.5) with SMTP id SAA00291 for ; Thu, 24 Feb 2005 18:39:03 GMT X-Authentication-Warning: noname.nodomain.nowhere: fitec owned process doing -bs Date: Thu, 24 Feb 2005 18:39:03 +0000 (GMT) From: "Alexander S. Yurkov" To: rsgb_lf_group@blacksheep.org In-Reply-To: <200502241223.37150.smtp01@email.it> Message-ID: MIME-Version: 1.0 X-SPF-Result: relay.thorcom.net: domain of omskcity.com designates 80.89.139.226 as permitted sender X-Spam-Score: 1.3 (+) X-Spam-Report: autolearn=no,DATE_IN_FUTURE_06_12=1.202,FORGED_RCVD_HELO=0.05 Subject: LF: Digital radio Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.9 required=5.0 tests=DATE_IN_FUTURE_06_12 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit On Thu, 24 Feb 2005, Claudio Pozzi wrote: > > But without a single channel roofing filter a 130 dB outband signal > make the AD converter overload, despite any sampling rate. Or not? Keep total signal less then overload treshold. You do not (!) need have weak desired signal more then lower sign meaning ('step of quantization'). Dithering will help you (see my previous msg). 73 de RA9MB/Alex http://www.qsl.net/ra9mb