Return-Path: Received: from mtain-dh10.r1000.mx.aol.com (mtain-dh10.r1000.mx.aol.com [172.29.65.30]) by air-da09.mail.aol.com (v129.4) with ESMTP id MAILINDA093-86414bed9840145; Fri, 14 May 2010 14:36:48 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dh10.r1000.mx.aol.com (Internet Inbound) with ESMTP id AD10D38000282; Fri, 14 May 2010 14:36:46 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OCzjo-0005kI-9l for rs_out_1@blacksheep.org; Fri, 14 May 2010 19:35:56 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OCzjn-0005k9-Tl for rsgb_lf_group@blacksheep.org; Fri, 14 May 2010 19:35:55 +0100 Received: from out1.ip02ir2.opaltelecom.net ([62.24.128.238]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OCzjl-0004V7-9N for rsgb_lf_group@blacksheep.org; Fri, 14 May 2010 19:35:55 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AsQKAGc17UsCYh4U/2dsb2JhbACOZAOPGQNxviqFEAQ X-IronPort-AV: E=Sophos;i="4.53,232,1272841200"; d="scan'208,217";a="323107829" Received: from unknown (HELO xphd97xgq27nyf) ([2.98.30.20]) by out1.ip02ir2.opaltelecom.net with SMTP; 14 May 2010 19:35:46 +0100 Message-ID: <002701caf394$44cbd980$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: "rsgb" Date: Fri, 14 May 2010 19:35:46 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.2 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RCVD_ILLEGAL_IP=0.234 Subject: LF: ref LD30 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0024_01CAF39C.A65BC400" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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 x-aol-global-disposition: G x-aol-sid: 3039ac1d411e4bed983e0727 X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0024_01CAF39C.A65BC400 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Well, I am getting 15v sine wave into a 50 ohm DL with the LD30,= this looks promising. All I need now is a 500W audio amp suitably mat= ched into 50 ohms. I prefer to keep a standard 50 ohm system for measuring purposesd. or I could change the 15v to sq wave and build a class D fet amp, maybe= a better approach. If I proceed the Ant system would consist of 3 x inv L antennas in par= allel, height about 100 ft and each one about 500 ft horizontal. Will have to calculate the loading coil L maybe less than 1 H with som= e luck This is just a proposal at present de mal/g3kev ------=_NextPart_000_0024_01CAF39C.A65BC400 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Well, I am getting= 15v sine wave=20 into a 50 ohm DL with the LD30, this looks promising. All I need now= is a 500W=20 audio amp suitably matched into 50 ohms.
I prefer to keep a standard 50 ohm sy= stem for=20 measuring purposesd.
or
I could change the 15v to sq wave and= build a class=20 D fet amp, maybe a better approach.
If I proceed the Ant system would con= sist of 3 x=20 inv L antennas in parallel, height about 100 ft and each one about 500= ft=20 horizontal.
Will have to calculate the loading co= il L maybe=20 less than 1 H with some luck
This is just a proposal at present
de mal/g3kev
 
 
 
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