Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-ma04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 85CC738001BB4; Wed, 6 Feb 2013 11:59:32 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U38KW-0005f6-U0 for rs_out_1@blacksheep.org; Wed, 06 Feb 2013 16:58:40 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U38KW-0005ex-GG for rsgb_lf_group@blacksheep.org; Wed, 06 Feb 2013 16:58:40 +0000 Received: from smtpout5.wanadoo.co.uk ([80.12.242.80] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1U38KU-0004jh-Ke for rsgb_lf_group@blacksheep.org; Wed, 06 Feb 2013 16:58:39 +0000 Received: from AGB ([2.26.17.117]) by mwinf5d66 with ME id x4yF1k00B2XYqqi034yFq5; Wed, 06 Feb 2013 17:58:17 +0100 Message-ID: <93448468FF4E44ED9027FAC62A4C37D7@AGB> From: "Graham" To: References: <51128A00.7080801@iup.uni-heidelberg.de> In-Reply-To: <51128A00.7080801@iup.uni-heidelberg.de> Date: Wed, 6 Feb 2013 16:58:15 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 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: 70MHz = 4 Meter Band http://www.70mhz.org/ From: "Stefan Schäfer" Sent: Wednesday, February 06, 2013 4:51 PM To: Subject: Re: LF: RE: Re: Testing WSPR-15 on 630m [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [80.12.242.80 listed in list.dnswl.org] X-Scan-Signature: bf9cd6b3d49c805062abf73a1027fea8 Subject: Re: LF: RE: Re: Testing WSPR-15 on 630m Content-Type: text/plain; format=flowed; charset="UTF-8"; reply-type=response Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.2 required=5.0 tests=MAILTO_TO_SPAM_ADDR, MISSING_OUTLOOK_NAME 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: 3039ac1d600c51128bf448c5 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none 70MHz = 4 Meter Band http://www.70mhz.org/ -------------------------------------------------- From: "Stefan Schäfer" Sent: Wednesday, February 06, 2013 4:51 PM To: Subject: Re: LF: RE: Re: Testing WSPR-15 on 630m > Hi Victor, > > That's not ugly at all :-) Looks like a lot of effort! 70 MHz, is that the > LO for a MF mixer? > > 73, Stefan > > Am 05.02.2013 16:57, schrieb victor13@online.nl: >> Hello Stefan, >> >> picture of a ugly 70MHz treansverter,lots of glue and solder but it works >> very well. >> Spurious sgnals more than 100 dB down,except harmonics,just 70db down. >> >> 73 >> >> Victor >> >> -----Oorspronkelijk bericht----- >> Van: owner-rsgb_lf_group@blacksheep.org >> [mailto:owner-rsgb_lf_group@blacksheep.org]Namens Victor van Kooten >> Verzonden: dinsdag 5 februari 2013 8:41 >> Aan: rsgb_lf_group@blacksheep.org >> Onderwerp: Re: LF: RE: Re: Testing WSPR-15 on 630m >> >> >> 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 Schäfer 04/02/2013 >>>>> >> 23:26>>> >> Hi Victor, >> >> Thanks for the feedback. Yes i see i'm drifting. Not so fine. There >> were >> 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 >> some nearby parts (The ICL7667 and a 78S05) which become warm during >> TXing and feed the heat to the xtal. I will investigate... >> >> 73, Stefan >> >> Am 04.02.2013 22:04, schrieb victor13@online.nl: >> >>> Hi Stefan, >>> your signal on the waterfall >>> Victor >>> >>> >> >> >> ----- >> Geen virus gevonden in dit bericht. >> Gecontroleerd door AVG - www.avg.com >> Versie: 2013.0.2897 / Virusdatabase: 2639/6081 - datum van uitgifte: >> 02/04/13 >> >> >