Return-Path: Received: (qmail 68385 invoked from network); 17 Jul 2004 10:15:58 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 17 Jul 2004 10:15:58 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1BlmGB-000PTU-Ui for dave@picks.force9.co.uk; Sat, 17 Jul 2004 11:17:40 +0100 Received: from [192.168.67.3] (helo=ptb-mxcore03.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1BlmGB-000PSl-RA for dave@picks.force9.co.uk; Sat, 17 Jul 2004 11:17:39 +0100 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1BlmEV-000Jfh-JJ for dave@picks.force9.co.uk; Sat, 17 Jul 2004 11:15:55 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1BlmE9-0007MR-AQ for rs_out_1@blacksheep.org; Sat, 17 Jul 2004 11:15:33 +0100 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1BlmE8-0007MI-VG for rsgb_lf_group@blacksheep.org; Sat, 17 Jul 2004 11:15:32 +0100 Received: from mta06-svc.ntlworld.com ([62.253.162.46]) by relay.thorcom.net with esmtp (Exim 4.34) id 1BlmE1-0005JF-1G for rsgb_lf_group@blacksheep.org; Sat, 17 Jul 2004 11:15:32 +0100 Received: from captbrian ([80.1.188.75]) by mta06-svc.ntlworld.com (InterMail vM.4.01.03.37 201-229-121-137-20020806) with SMTP id <20040717101528.IVDF2500.mta06-svc.ntlworld.com@captbrian> for ; Sat, 17 Jul 2004 11:15:28 +0100 Message-ID: <000601c46be7$4373daa0$4bbc0150@captbrian> From: "captbrian" To: rsgb_lf_group@blacksheep.org References: <40F8F62A.70307@cytanet.com.cy> Date: Sat, 17 Jul 2004 11:17:27 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=no,RCVD_IN_SORBS=0.1 Subject: LF: Re: RE: Feeding grounded tower on 136KHz Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) No initiative , that's the trouble.with amateurs today... ;-) After sutable temporary extra guying, saw thro' each leg in turn and insert a compression resisting insulator. OR , to save money on insulators, dig a hole around and under each leg, then , using a swimming pool rubber liner, insulate the foundations from the surrounding soil... A 60m _insulated_ vertical tower would be worth having, you would save money then by needing a much smaller dustbin ! Bryan - G3GVB ----- Original Message ----- From: Geoff To: Sent: Saturday, July 17, 2004 10:49 AM Subject: LF: RE: Feeding grounded tower on 136KHz > Thankyou to M0BMU, RU6LA and ON7YD for your replies, which have provided me > with enough information to dismiss shunt feeding. > > I have a sling shot which I can loop over an outcrop on the structure at > around 20m AGL, > from which I will use an insulated wire down to a dustbin formed coil. > > Geoff > > PS Ed, my power will not approach 1W ERP with my projected antenna. > > >