Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-db02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0B266380000F2; Sat, 2 Feb 2013 14:33:09 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U1io7-0000yG-5M for rs_out_1@blacksheep.org; Sat, 02 Feb 2013 19:31:23 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U1io6-0000y7-MR for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 19:31:22 +0000 Received: from mout2.freenet.de ([195.4.92.92]) by relay1.thorcom.net with esmtps (UNKNOWN:AES256-GCM-SHA384:256) (Exim 4.77) (envelope-from ) id 1U1io4-00067c-BY for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 19:31:21 +0000 Received: from [195.4.92.142] (helo=mjail2.freenet.de) by mout2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.76 #1) id 1U1inj-0000Il-8y for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 20:30:59 +0100 Received: from localhost ([::1]:39946 helo=mjail2.freenet.de) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.76 #1) id 1U1inj-0004Ll-26 for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 20:30:59 +0100 Received: from [195.4.92.20] (port=54093 helo=10.mx.freenet.de) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.76 #1) id 1U1ikM-0000M8-9y for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 20:27:30 +0100 Received: from blfd-4db0116d.pool.mediaways.net ([77.176.17.109]:4725 helo=[192.168.178.22]) by 10.mx.freenet.de with esmtpsa (ID dl4yhf@freenet.de) (TLSv1:CAMELLIA256-SHA:256) (port 465) (Exim 4.76 #1) id 1U1ikM-0003Dj-50 for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 20:27:30 +0100 Message-ID: <510D68A1.6070608@freenet.de> Date: Sat, 02 Feb 2013 20:27:29 +0100 From: wolf_dl4yhf User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20120713 Thunderbird/14.0 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: ,<7F4CF64248DB4E6184E59688EA3B5435@Extensa> In-Reply-To: X-Spam-Score: -0.4 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Laurence and all, You asked: > Is it better to have a longer FFT input size and smaller decimate or say smaller input size and larger decimate :-) ? < [...] Content analysis details: (-0.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [195.4.92.92 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dl4yhf[at]freenet.de) -0.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: e90dcb17768c7e768f13e0721cc1c0c7 Subject: Re: LF: 0.003 Hz drift DJ8WX at 8970,022 Hz 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: 3039ac1d4056510d69f51fd9 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Laurence and all, You asked: > Is it better to have a longer FFT input size and smaller decimate or say smaller input size and larger decimate :-) ? < It doesn't matter for this application. Important is only the resulting FFT bin width, which is displayed on the 'FFT Settings' panel. Longer FFT and less decimation has the advantage of covering a larger bandwidth (to pan around), but since we know Uwe's frequency quite accurately that's not so important. On PCs with less than a gagabyte of RAM, or if many other programs need to run simultaneously, keep the FFT size below 512k . 73, Wolf DL4YHF . (back from the club station; quite heavy QRM/QRN here so I decided to call it day on MF)