Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mp03.r1000.mx.aol.com (Internet Inbound) with ESMTP id AB3AD3800009C; Tue, 5 Feb 2013 02:43:50 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U2d9l-0007Bk-Ou for rs_out_1@blacksheep.org; Tue, 05 Feb 2013 07:41:29 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U2d9l-0007BZ-0t for rsgb_lf_group@blacksheep.org; Tue, 05 Feb 2013 07:41:29 +0000 Received: from alinga.sron.nl ([131.211.40.2]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1U2d9j-0005yu-CD for rsgb_lf_group@blacksheep.org; Tue, 05 Feb 2013 07:41:27 +0000 Received: by localhost.sron.nl (TUNIX/Firewall Mail Server) with ESMTP id 97D46F74A6 for ; Tue, 5 Feb 2013 08:41:06 +0100 (CET) Received: by alinga.sron.nl (TUNIX/Firewall Mail Server) with ESMTP for ; Tue, 5 Feb 2013 08:41:06 +0100 (CET) Received: by filter.sron.nl (Postfix, from userid 1000) id 8FE263A6051; Tue, 5 Feb 2013 08:41:06 +0100 (CET) Received: from gw1.sron.nl (gw1.sron.nl [172.16.40.26]) by filter.sron.nl (Postfix) with ESMTP id C3FC23A6025 for ; Tue, 5 Feb 2013 08:41:00 +0100 (CET) Received: from SRON-MTA by gw1.sron.nl with Novell_GroupWise; Tue, 05 Feb 2013 08:41:00 +0100 Message-Id: <5110C599020000FA00018975@gw1.sron.nl> X-Mailer: Novell GroupWise Internet Agent 8.0.2 Date: Tue, 05 Feb 2013 08:40:57 +0100 From: "Victor van Kooten" To: References: <511035B2.8040306@iup.uni-heidelberg.de> In-Reply-To: <511035B2.8040306@iup.uni-heidelberg.de> Mime-Version: 1.0 Content-Disposition: inline X-Spam-Score: -0.0 (/) 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: Hello Stefan, I don't know how sensitive wspr15 is for drift,maybe this is a cause for lost decodes.Maybe you can change the xtal osc for a tcxo or a ocxo,they are very cheap these days,ofcourse it depends on the freq. you use. Your construction isn't that ugly,This evening I will send you some pictures of my own experiments, [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 6ffbd2c9950b634d6cc91f9565b01a8b Subject: Re: LF: RE: Re: Testing WSPR-15 on 630m Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.1 required=5.0 tests=MAILTO_TO_SPAM_ADDR 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: 3039ac1dc1475110b8357450 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello Stefan, I don't know how sensitive wspr15 is for drift,maybe this is a cause for lost decodes.Maybe you can change the xtal osc for a tcxo or a ocxo,they are very cheap these days,ofcourse it depends on the freq. you use. Your construction isn't that ugly,This evening I will send you some pictures of my own experiments, 73,GL Victor >>> Stefan Sch=C3=A4fer 04/02/2013 23:26 >>> Hi Victor, Thanks for the feedback. Yes i see i'm drifting. Not so fine. There were=20 some missing decodes. Must have been due to the timing or maybe the drift? My TX converter is quite an ugly construction. It was grown from a very temporary arrangement of a few electronic parts. The drift may come from=20 some nearby parts (The ICL7667 and a 78S05) which become warm during=20 TXing and feed the heat to the xtal. I will investigate... 73, Stefan Am 04.02.2013 22:04, schrieb victor13@online.nl:=20 > Hi Stefan, > your signal on the waterfall > Victor >