Return-Path: Received: from mtain-dc06.r1000.mx.aol.com (mtain-dc06.r1000.mx.aol.com [172.29.64.134]) by air-mf04.mail.aol.com (v129.4) with ESMTP id MAILINMF044-8be84c1b6114324; Fri, 18 Jun 2010 08:05:40 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 320DD38000227; Fri, 18 Jun 2010 08:05:24 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OPaFC-0004Tx-KP for rs_out_1@blacksheep.org; Fri, 18 Jun 2010 13:00:22 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OPaFC-0004To-9m for rsgb_lf_group@blacksheep.org; Fri, 18 Jun 2010 13:00:22 +0100 Received: from mout6.freenet.de ([195.4.92.96]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OPaF8-00078r-L6 for rsgb_lf_group@blacksheep.org; Fri, 18 Jun 2010 13:00:22 +0100 Received: from [195.4.92.16] (helo=6.mx.freenet.de) by mout6.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.72 #3) id 1OPaF2-0000rh-Ia for rsgb_lf_group@blacksheep.org; Fri, 18 Jun 2010 14:00:12 +0200 Received: from blfd-5d822dde.pool.mediaways.net ([93.130.45.222]:2884 helo=[192.168.0.105]) by 6.mx.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.72 #3) id 1OPaF2-0002aV-En for rsgb_lf_group@blacksheep.org; Fri, 18 Jun 2010 14:00:12 +0200 Message-ID: <4C1B5FCB.4040609@freenet.de> Date: Fri, 18 Jun 2010 14:00:11 +0200 From: =?ISO-8859-1?Q?Wolfgang_B=FCscher?= User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Spectrum Lab help please! Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-aol-global-disposition: G x-aol-sid: 3039ac1d40864c1b610471b5 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Hello Harry, I'd also vote to update to Spectrum Lab V2.75 b11 (or later), and use one of the 'Very Slow CW' configs from the menu. > Do I use "image cancelling DC receivers" These are only for software defined radios with I- and Q- output (either for the soundcard or with their own USB port). You won't need these to receive signals which the soundcard can process 'by itself', i.e. any signal with a frequency below half the soundcard's sampling rate. Cheers, Wolf