Return-Path: X-Spam-DCC: paranoid 1356; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_50_60,HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u3U4wLpP006362 for ; Sat, 30 Apr 2016 06:58:21 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1awMtK-00030m-4r for rs_out_1@blacksheep.org; Sat, 30 Apr 2016 05:52:30 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1awMtJ-00030c-Qf for rsgb_lf_group@blacksheep.org; Sat, 30 Apr 2016 05:52:29 +0100 Received: from mail-lf0-x22b.google.com ([2a00:1450:4010:c07::22b]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1awMtH-0007NU-1k for rsgb_lf_group@blacksheep.org; Sat, 30 Apr 2016 05:52:28 +0100 Received: by mail-lf0-x22b.google.com with SMTP id u64so138392406lff.3 for ; Fri, 29 Apr 2016 21:52:26 -0700 (PDT) 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=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to; bh=DylTfFJVJ+k1zz+OiVy0RrTr+LJOB2Y405F3cLwX+zI=; b=EM2ELha/Y/IS+d3HFV3iUkMqMzIy8cBieD0SesSVSrH8mdVKwX2YjWCNePp4yYWdee 50O2v2zi+aRTny/QgpARMcWBY2M0/A97hsrLv2Xf7hX+5/0uJpMCbmOMMzIZnwLRDARg 2Bru483YSUXNzRQiPmhI81nvQY9yzNuXFCG/i+DFOfs1ziVS882uiIIH9Y6iAkA1Ex6K 3SODWR4+/WuyrJiLf1g1fvracivXN/Gc3lNWKYoHOt2Cz5j2wyrb1sEqN6O/X4GqSjvc lKy/3iI9vlYyepWYHX98JwdLsfzgOVs4QA0rrK6bcgFJ3NdEnnUrbYqglDV/snwjz4Nk S0fw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to; bh=DylTfFJVJ+k1zz+OiVy0RrTr+LJOB2Y405F3cLwX+zI=; b=gcAhHmEebXvyWdNCSJEP/SzlANjUkWhiXgffltxSwPizegWP1CxYliDDgGFL2kibGp utI5AOnwp9VgRvDS5fV01Y56sF9qQ06NlYII6jpi7uEluRog6C8BMeGWUmQFxbS4I8x/ F1Tpop2J1Qs9RupkjMpFqw6/VBFUCa8KGDd1vDaOSbk3kPkT1h9C3PXzBya70hLnS0hX oZ79apJdtmhPvj+8Oiv/QnI/GcWDEHt4x9mgvwuzpVfpDGluqlSwTGvGRONZT1UzScos UUiAtfLpbRkGhqK2khE5rQ8u+xj1VqeP5n2WPKHbxjHuZMVWuBF8t7GunWI83ctY8RTK Rf+A== X-Gm-Message-State: AOPr4FX3Bwxtuid8tm5OW5hk6Cyz/gbkDgsxVXznqjoWz6L5hV2gZ8/25X4Am/U+i+UOg726tPoJJAN7zOb9kQ== MIME-Version: 1.0 X-Received: by 10.25.64.212 with SMTP id n203mr10168670lfa.54.1461991945559; Fri, 29 Apr 2016 21:52:25 -0700 (PDT) Received: by 10.25.22.90 with HTTP; Fri, 29 Apr 2016 21:52:25 -0700 (PDT) In-Reply-To: <5723BC65.9050808@web.de> References: <5723BC65.9050808@web.de> Date: Sat, 30 Apr 2016 07:52:25 +0300 Message-ID: From: Alex R7NT To: rsgb_lf_group@blacksheep.org X-Scan-Signature: 0b36c952c26be93e626fe2fa1c93657f Subject: Re: RV: LF: TXing on VLF again, my first homemade linear PA! :-) Content-Type: multipart/alternative; boundary=001a113fc26a9465910531ac8696 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7936 --001a113fc26a9465910531ac8696 Content-Type: text/plain; charset=UTF-8 Eike, I use a different idea on LF from 2013 http://136.73.ru/d_pa/d_pa.htm IRAUDAMP7S-150 - abt 200-220W RMS Output on 136 (one ch) at very long beacon's time with abt 90% total efficiency (~220V 50Hz -> 136kHz) now - I use Chinese full analogue ($38 2013) of IRAUDAMP7S http://www.irf.com/reference-designs/design-family/_/N~1njcja#tab-tab2 The theory of Class D Audio (linear) PA http://www.irf.com/product-info/audio/classdtutorial2.pdf I do not know how to achieve the very high stability to your ideas 2KW PA from the same Chinese manufacturer IRAUDAMP9 on ebay http://goo.gl/MxYh5E $179 73! Alex R7NT 136.73.ru 2016-04-29 22:56 GMT+03:00 Eike DL3IKE : > Hi, > > 1. set switching frequency to LF or MF band > 2. remove output filter > 3. add LF or MF Lowpassfilter > 4. input NF > 5. have high efficiency AM-Transmitter? > > stupid idea? > > 73s de Eike > --001a113fc26a9465910531ac8696 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Eike,
I use a different idea on LF from 2013http://136.73= .ru/d_pa/d_pa.htm =C2=A0=C2=A0 IRAUDAMP7S-150 - abt 200-220W RMS Output= on 136 (one ch) at very long beacon's time with abt 90% total efficien= cy (~220V 50Hz -> 136kHz) now - I use Chinese full analogue ($38 2013) o= f=C2=A0=C2=A0IRAUDAMP7S=C2=A0http://www.irf.com/r= eference-designs/design-family/_/N~1njcja#tab-tab2
The theory= of Class D Audio (linear) PA http://www.irf.com/product-info/= audio/classdtutorial2.pdf
I do not know how to achieve the ve= ry high stability to your ideas

2KW PA from th= e same Chinese manufacturer IRAUDAMP9 on ebay=C2=A0=C2=A0http://goo.gl/MxYh5E=C2=A0 $179

=
73! Alex R7NT =C2=A0136.73.ru

2016-04-29 22:56 GMT+03:00 Eike DL3I= KE <dl3ike@web.de>:
=20 =20 =20
Hi,

1. set switching frequency to LF or MF band
2. remove output filter
3. add LF or MF Lowpassfilter
4. input NF
5. have high efficiency AM-Transmitter?

stupid idea?

73s de Eike
--001a113fc26a9465910531ac8696--