Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 53E593800009C; Thu, 31 May 2012 10:00:58 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Sa5ur-0002Bp-VL for rs_out_1@blacksheep.org; Thu, 31 May 2012 14:59:53 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Sa5ur-0002Bg-E1 for rsgb_lf_group@blacksheep.org; Thu, 31 May 2012 14:59:53 +0100 Received: from qmta03.westchester.pa.mail.comcast.net ([76.96.62.32]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Sa5uo-0003BA-Qm for rsgb_lf_group@blacksheep.org; Thu, 31 May 2012 14:59:52 +0100 Received: from omta24.westchester.pa.mail.comcast.net ([76.96.62.76]) by qmta03.westchester.pa.mail.comcast.net with comcast id GaxW1j0031ei1Bg53dzoQR; Thu, 31 May 2012 13:59:48 +0000 Received: from DELL4 ([71.234.119.9]) by omta24.westchester.pa.mail.comcast.net with comcast id Gdzo1j01G0CFS1j3kdzo11; Thu, 31 May 2012 13:59:48 +0000 Message-ID: <002f01cd3f35$a45c6e70$6d01a8c0@DELL4> From: To: References: <8BE4322932454ABBAF36917E7F0B7293@uwePC> <4FC74C16.1050905@iup.uni-heidelberg.de> <4FC75239.6090105@iup.uni-heidelberg.de> <000601cd3f2d$7877fca0$6d01a8c0@DELL4> <4FC76ECD.8040401@iup.uni-heidelberg.de> Date: Thu, 31 May 2012 09:59:48 -0400 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 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: Stefan Thanks for the positive comments. Have to admit I haven't been following what you're up to ... curious what problems you're running into with VMCD at 500 kHz? [...] 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 [76.96.62.32 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (jrusgrove[at]comcast.net) -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record X-Scan-Signature: c9d6a1e47761f7ec7375ac340bef30d0 Subject: Re: LF: Re: Current mode class D PA for 475 kHz Content-Type: text/plain; format=flowed; charset="Windows-1252"; 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=0.3 required=5.0 tests=NO_REAL_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-SCOLL-SCORE: 0:2:509283456:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1db4064fc779996dc5 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror Stefan Thanks for the positive comments. Have to admit I haven't been following what you're up to ... curious what problems you're running into with VMCD at 500 kHz? Jay ----- Original Message ----- From: "Stefan Schäfer" To: Sent: Thursday, May 31, 2012 9:14 AM Subject: Re: LF: Re: Current mode class D PA for 475 kHz Hi Jay, LF, Tnx! I already found your paper in a forum :-) Really, your work looks perfect. My compliments! Actually it is no amateur radio any more but looks more than proffessional. Amazing! I'm still going through that IEEE paper. It is worth to mention that the explanation of the working principle is excellent! Most papers i found are very complex and related to very special UHF stuff. Will try the CMCD today! 73, Stefan Am 31.05.2012 15:01, schrieb jrusgrove@comcast.net: > Stefan > > CMCD working well up through 40 meters here on AM ... http://www.w1vd.com/375wattclassD.html . > > Jay W1VD WD2XNS WE2XGR/2 > > > ----- Original Message ----- From: "Stefan Schäfer" > To: > Sent: Thursday, May 31, 2012 7:12 AM > Subject: LF: Current mode class D PA for 475 kHz > > > > Am 31.05.2012 12:46, schrieb Stefan Schäfer: >> [...] Looks all very interesting. I will take the idea of the "current mode class D PA" and play >> arround with it... > > This paper looks most interesting: > http://sigma.ucsd.edu/research/articles/2001/2001_2.pdf > Maybe just the solution for my problem in my current MF PA construction. > > 73, Stefan >