Return-Path: Received: from rly-dd04.mx.aol.com (rly-dd04.mail.aol.com [172.19.141.151]) by air-dd03.mail.aol.com (v123.4) with ESMTP id MAILINDD034-b744a0ad28c138; Wed, 13 May 2009 10:00:53 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dd04.mx.aol.com (v123.4) with ESMTP id MAILRELAYINDD046-b744a0ad28c138; Wed, 13 May 2009 10:00:46 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1M4F0E-0003eq-D7 for rs_out_1@blacksheep.org; Wed, 13 May 2009 15:00:10 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1M4F0E-0003eh-0d for rsgb_lf_group@blacksheep.org; Wed, 13 May 2009 15:00:10 +0100 Received: from cavuit02.kulnet.kuleuven.be ([134.58.240.44]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1M4F0B-00021M-EO for rsgb_lf_group@blacksheep.org; Wed, 13 May 2009 15:00:09 +0100 Received: from smtps01.kuleuven.be (smtpshost01.kulnet.kuleuven.be [134.58.240.74]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id E3C3051C00D for ; Wed, 13 May 2009 15:59:55 +0200 (CEST) Received: from PC_van_Rik.fys.kuleuven.be (dhcp-10-33-85-106.fys.kuleuven.be [10.33.85.106]) by smtps01.kuleuven.be (Postfix) with ESMTP id BB4FB31E704 for ; Wed, 13 May 2009 15:59:55 +0200 (CEST) X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Wed, 13 May 2009 15:59:56 +0200 To: rsgb_lf_group@blacksheep.org X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe In-Reply-To: <57a24ca70905130629q408f0128yfe5356c77bbe084e@mail.gmail.co m> References: <00f001c9d336$e20b35d0$0301a8c0@mal769a60aa920> <8C9A146733714A4BAFA422AEE4A99851@DR2> <010201c9d33a$d8907700$0301a8c0@mal769a60aa920> <57a24ca70905130629q408f0128yfe5356c77bbe084e@mail.gmail.com> Mime-Version: 1.0 Message-Id: <20090513135955.BB4FB31E704@smtps01.kuleuven.be> X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: AW: Low freq DDS VFO any ideas / for sale etc ? Content-Type: text/plain; charset="iso-8859-1"; 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=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-IP: 193.82.116.20 Warren, I guess this problem can be solved by removing=20 the onboard xtal and injecting a signal from a stable frequency source. 73, Rik ON7YD - OR7T At 15:29 13/05/2009, you wrote: >Graham, Gerhard, > > This is EXACTLY the dds that I used and observed considerable >temperature drift when operating QRSS 60 on 137 kHz. > >-- >73 Warren K2ORS > WD2XGJ > WD2XSH/23 > WE2XEB/2 > WE2XGR/1 > > > >On Tue, May 12, 2009 at 5:46 PM, Beckmann, Gerhard > wrote: > > Hello Graham, > > > > > > > > the DDS-Oscillator under this link may partial meet your requirements=20= =85 > > > > > > > > http://www.box73.de/catalog/pdf/FA0407_694-695.pdf?osCsid=3D983aae56f383= b > > > > > > > > 73 de Gerhard / DK6NI > > > > > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > > > > > > > > > > > ________________________________ > > > > Von: owner-rsgb_lf_group@blacksheep.org > > [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Graham > > Gesendet: Dienstag, 12. Mai 2009 23:25 > > An: rsgb_lf_group@blacksheep.org > > Betreff: LF: Low freq DDS VFO any ideas / for sale etc ? > > > > > > > > > > > > Looking for a low frequency , 100k > 30 Mhz ish dds vfo, possibly a kit=20= , > > > > better a part completed kit would be better ...second hand working > > > > even better ! > > > > > > > > Ideal would be a box with a frequency display and a key pad to > > > > enter the frequency , preferable to a pc addressed device > > > > > > > > Couple of volts sine wave out , nothing fancy , simple master > > > > oscillator for tx > > > > > > > > Any ideas or links (any for sale ?) > > > > > > > > Tnx- Graham .