Return-Path: Received: from rly-mf07.mx.aol.com (rly-mf07.mail.aol.com [172.20.29.177]) by air-mf07.mail.aol.com (v123.3) with ESMTP id MAILINMF072-96e49b251ae2cb; Sat, 07 Mar 2009 05:51:39 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mf07.mx.aol.com (v123.3) with ESMTP id MAILRELAYINMF074-96e49b251ae2cb; Sat, 07 Mar 2009 05:51:29 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Lfu7F-0002ba-Gn for rs_out_1@blacksheep.org; Sat, 07 Mar 2009 10:50:49 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Lfu7F-0002bR-4q for rsgb_lf_group@blacksheep.org; Sat, 07 Mar 2009 10:50:49 +0000 Received: from fwx.uvtc.net ([195.22.25.2] helo=uvtcmail.se) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Lfu7D-0002pS-4R for rsgb_lf_group@blacksheep.org; Sat, 07 Mar 2009 10:50:49 +0000 Received: from radiorummet ([87.227.51.55]) by uvtcmail.se with MailEnable ESMTP; Sat, 7 Mar 2009 10:50:39 +0000 Message-ID: <1DF611251F48450DB34200591E4F2D0D@radiorummet> From: "Gus" To: References: In-Reply-To: Date: Sat, 7 Mar 2009 11:50:38 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 X-ME-Bayesian: 0.000000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: Looking for HF to LF-Transverter, ... ? Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=0.1 required=5.0 tests=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-IP: 193.82.116.20 Marco, there is a very easy and good way to build a transmitting converter or transverter. For the mixer you have to use 8 diodes and 5 transformer, 1n4148 do the job. A filter and a simple amplifire and you are in the air. I build this type and use it now, i have test all mode like AM,SSB,CW WSPR with great sucess in a range of 10-900 kHz with an ICOM tranceiver. If you are interested or any else, i have made a design and pcb-board. 73 de Gus SM6BHZ ----- Original Message ----- From: "Scholz, Marco " To: Sent: Friday, March 06, 2009 9:55 PM Subject: LF: Looking for HF to LF-Transverter, ... ? Dear LF-Group, sorry for bandwidth, i looking for some sort of of mixer/transverter to use a shortwave transceiver on 137KHz for WSPR. Can be in experimental stage, but i need something to start. To build something from scratch is a bit a challenge for me, so i thought i ask around. Maybe someone has to sell some parts? If yes, please send me a mail to dd7pc@gmx.de Many thanks, vy73 Marco DD7PC