Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w18CpGHx026857 for ; Thu, 8 Feb 2018 13:51:17 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ejla8-0002lh-Jo for rs_out_1@blacksheep.org; Thu, 08 Feb 2018 12:45:40 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ejla8-0002lY-Ar for rsgb_lf_group@blacksheep.org; Thu, 08 Feb 2018 12:45:40 +0000 Received: from mail-oi0-x22f.google.com ([2607:f8b0:4003:c06::22f]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1ejla5-0007pr-Aj for rsgb_lf_group@blacksheep.org; Thu, 08 Feb 2018 12:45:39 +0000 Received: by mail-oi0-x22f.google.com with SMTP id 24so3368428oij.3 for ; Thu, 08 Feb 2018 04:45:37 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=N5Q41+iFQOtYpsxeNChRnPBAElGcVhU77m+t6aLOlNc=; b=EnAqlEYUI+4p8yEZTXA94nP6YzLqmEB1Injq7Fnyo+gfa6zkU8M82MgfLTK35eoUxH fsy8RB1/4XF+LOWE6Mwq2NCLgtYtqfUU/n5+nuwBMl7srs2ePKTqi65VBOahHaTn70Ri CFtLsPTt0bg3m1+jEqsvhbL5DdwY9kS+O6UqA9pDhZ7isvbCLIdQf1IwCP7w4oxQV8eK 2fTfYAHxodPJmFJFRD2V27bFbqB2G3XSWoI5PjOv150VLHwhJkHaTfiPB2Ow+PuqncTM hy7LfeaMxMTu5lWIUX+jDnTtNfV8VtD02Sz7wMScMMgEmFGpAYYVtPrmHQeFhMEYL/U2 gHnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=N5Q41+iFQOtYpsxeNChRnPBAElGcVhU77m+t6aLOlNc=; b=MNiT2R5erVcXfq0n3N0AG+SkWmNlqpP1qX+cJtWG9esjttq3MWma53Q6zTehU8qmDm s1upxdesjFu+HGkjcqr817b/6Pk7chEdUIrNBr2hii8DB+yBaYRd/08b55Gl1pZM/zLq 7n4o887DC1m297npaX5m+Fzk0ebKucGoxfrAiIEDI5w4Q3FJbDeJ9hxKpcxE51/xTMiK 5qMniQ8kywXE1s+ZyVA6/G2tA0emVGkZP9NQ7OOWUr2M5flI1ibYp/vTfEsvKNHHKxjN XG708eqPkcTCbIQNgIeNV1UX/sNoWPi9tRqtO+NKtls5GQhdIZr7sjP8ZhgxOdRvz9qQ Fxfw== X-Gm-Message-State: APf1xPAk+kMmHkMOBySrWMi93upyJJN+0heofPLlc7ZEhtGD9DHfGmP8 IIhitqGuUtb1oGEr6+E1d3Fb0tp4MTKwgbXMaWDXRC1H X-Google-Smtp-Source: AH8x226sjHahYGMqLUpbrne2q1rDnIBhpYe5uaKW0UKo7qpCX8tggHAmwwSn+oZ0ljDcDPA++S2GlGEz/peeKZdIHJc= X-Received: by 10.202.252.68 with SMTP id a65mr396788oii.256.1518093934002; Thu, 08 Feb 2018 04:45:34 -0800 (PST) MIME-Version: 1.0 Received: by 10.157.28.165 with HTTP; Thu, 8 Feb 2018 04:45:33 -0800 (PST) From: Roger Lapthorn Date: Thu, 8 Feb 2018 12:45:33 +0000 Message-ID: To: "rsgb_lf_group@blacksheep.org" , rsgb_lf_group@yahoogroups.co.uk X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: If you want a simple way to get started on 472kHz maybe my transverter can help? This appeared in QST and in the book "LF Today". No great claims for it are made, but you should get 10-15W out into 50 ohms. Use it maybe as a starting point for your own design? [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (rogerlapthorn[at]gmail.com) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4e3b1488273adbbe9757d6bdd5adf219 Subject: LF: Simple transverter for 472kHz Content-Type: multipart/alternative; boundary="001a113df40cac09580564b2c955" 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=HTML_MESSAGE 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 --001a113df40cac09580564b2c955 Content-Type: text/plain; charset="UTF-8" If you want a simple way to get started on 472kHz maybe my transverter can help? This appeared in QST and in the book "LF Today". No great claims for it are made, but you should get 10-15W out into 50 ohms. Use it maybe as a starting point for your own design? I build mine on a piece of copper laminate, but I have seen versions built on a PCB. Before you ask, no, I do NOT have a PCB! https://sites.google.com/site/g3xbmqrp3/mflf/472khz_tvtr 73s Roger G3XBM --001a113df40cac09580564b2c955 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
If you want a simple way to get started on 472kHz may= be my transverter can help? This appeared in QST and in the book "LF T= oday".

No great claims for it are made, but = you should get 10-15W out into 50 ohms. Use it maybe as a starting point fo= r your own design?

I build mine on a piece of copp= er laminate, but I have seen versions built on a PCB. Before you ask, no, I= do NOT have a PCB!


73s
Roger G3XBM=

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