Envelope-to: dave@picks.force9.co.uk Delivery-date: Mon, 23 Jan 2006 17:06:38 +0000 Received: by ptb-mxcore02.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1F159I-0001ze-Ln for dave@picks.force9.co.uk; Mon, 23 Jan 2006 17:06:38 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (PlusNet MXCore v2.00) id 1F159I-0001wb-EK for dave@picks.force9.co.uk; Mon, 23 Jan 2006 17:06:36 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1F158h-0005Ey-DM for rs_out_1@blacksheep.org; Mon, 23 Jan 2006 17:05:59 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1F158g-0005Ep-PU for rsgb_lf_group@blacksheep.org; Mon, 23 Jan 2006 17:05:58 +0000 Received: from mout0.freenet.de ([194.97.50.131]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1F15mA-0007Qk-D3 for rsgb_lf_group@blacksheep.org; Mon, 23 Jan 2006 17:46:48 +0000 Received: from [194.97.50.135] (helo=mx2.freenet.de) by mout0.freenet.de with esmtpa (Exim 4.61) (envelope-from ) id 1F158d-00006z-KF for rsgb_lf_group@blacksheep.org; Mon, 23 Jan 2006 18:05:55 +0100 Received: from p5486c629.dip0.t-ipconnect.de ([84.134.198.41] helo=[192.168.0.200]) by mx2.freenet.de with esmtpsa (ID dl4yhf@freenet.de) (TLSv1:AES256-SHA:256) (Exim 4.61 #21) id 1F158d-00044R-Ev for rsgb_lf_group@blacksheep.org; Mon, 23 Jan 2006 18:05:55 +0100 Message-ID: <43D50D00.8070607@freenet.de> Date: Mon, 23 Jan 2006 17:06:08 +0000 From: Wolf DL4YHF User-Agent: Mozilla Thunderbird 0.9 (Windows/20041103) X-Accept-Language: de-DE, de, en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <43D493DB.15534.6E234E@localhost> <000701c61ffc$a1e84010$03b46dcb@cobaltxp> In-Reply-To: <000701c61ffc$a1e84010$03b46dcb@cobaltxp> Subject: Re: LF: Kahn EER? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit 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-PN-SpamFiltered: by PlusNet MXCore (v2.00) Hi Murray, Welcome to the group ... About I/Q-exciters for LF: Here is a VERY ugly one (mine ;-) http://people.freenet.de/dl4yhf/phasing_lf_exciter/index.html And here is a much nicer one: http://www.w1tag.com/Phasing.htm Some of the LF-specific software bundles (Jason, SpecLab) provide the necessary I/Q outputs to send CW, QRSS, HELL, PSK31, etc already. Best regards, Wolf DL4YHF . Murray ZL1BPU schrieb: > Is anybody doing any work with Kahn Envelope Elimination and > Restoration technology on LF? It would be especially applicable to > those of us with nonlinear LF transmitters (class C, D, E) wishing to > run sound card based modes (and even SSB). > > I'm especially interested to know about any sound card to LF carrier > and amplitude exciter designs or converters, or I and Q converters. > > 73, > Murray ZL1BPU > > > >