Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 8386B380000CD; Wed, 6 Feb 2013 12:08:21 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U38Dl-0005RB-Bk for rs_out_1@blacksheep.org; Wed, 06 Feb 2013 16:51:41 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U38Dk-0005R2-To for rsgb_lf_group@blacksheep.org; Wed, 06 Feb 2013 16:51:40 +0000 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1U38Dj-0004f9-45 for rsgb_lf_group@blacksheep.org; Wed, 06 Feb 2013 16:51:39 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id r16GpIb5032558 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 6 Feb 2013 17:51:18 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id r16GpIe5017765 for ; Wed, 6 Feb 2013 17:51:18 +0100 Message-ID: <51128A00.7080801@iup.uni-heidelberg.de> Date: Wed, 06 Feb 2013 17:51:12 +0100 From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id r16GpIb5032558 X-Spam-Score: -0.7 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. 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Content preview: 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 [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 138e3b341e0543401afa7e97ee054540 Subject: Re: LF: RE: Re: Testing WSPR-15 on 630m Content-Type: text/plain; charset=UTF-8; format=flowed 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: 3039ac1d408251128e04708b X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror Hi Victor, That's not ugly at all :-) Looks like a lot of effort! 70 MHz, is that=20 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 wor= ks 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. yo= u > use. > Your construction isn't that ugly,This evening I will send you some > pictures of my own experiments, > > > 73,GL > > Victor > > =20 >>>> Stefan Sch=C3=A4fer 04/02/20= 13 >>>> =20 > 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: > =20 >> Hi Stefan, >> your signal on the waterfall >> Victor >> >> =20 > > > ----- > 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 > > =20