Return-Path: Received: (qmail 16392 invoked from network); 18 Apr 2003 10:29:11 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 18 Apr 2003 10:29:11 -0000 Received: (qmail 17108 invoked by uid 10001); 18 Apr 2003 10:29:11 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 18 Apr 2003 10:29:11 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 196T34-0007lw-5N for rsgb_lf_group-outgoing@blacksheep.org; Fri, 18 Apr 2003 11:24:50 +0100 Received: from [62.253.164.42] (helo=mta2-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.14) id 196T2t-0007ln-Ue for rsgb_lf_group@blacksheep.org; Fri, 18 Apr 2003 11:24:40 +0100 Received: from l8p8y6 ([62.252.228.249]) by mta2-svc.business.ntl.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030418102438.IXWQ1184.mta2-svc.business.ntl.com@l8p8y6> for ; Fri, 18 Apr 2003 11:24:38 +0100 Message-ID: <000201c3058c$45093ee0$f9e4fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Thu, 17 Apr 2003 18:25:11 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Mystery Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.4 required=5.0tests=DATE_IN_PAST_12_24,HTML_20_30,HTML_MESSAGEversion=2.53 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 2.53 (1.174.2.15-2003-03-30-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

Hi Ian. What a complicated business. Keep it simple and put a series capacitor of several Mfd in series with the RF output,

then a matching transformer from 4 ohms to 50 ohms, use 50 ohm coax to the loading coil at the base of the antenna. Adjust this coil for resonance and 50 ohm matching and I would be surprised if you had any more problems. Disregard any other advice from some quarters, because when they were using the BK amps their sigs were pathetic until they got the DJ.

Tuning for max SMOKE is NOT the way to proceed. With the above suggestions you will be able to use a normal sensitive SWR bridge and know exactly how you stand. This method avoids blowing FETS or FUSES quicker than you replace them.

de G3KEV