Return-Path: Received: from rly-dg12.mx.aol.com (rly-dg12.mail.aol.com [172.19.151.96]) by air-dg07.mail.aol.com (v125.7) with ESMTP id MAILINDG074-60e4af48c9e39c; Fri, 06 Nov 2009 15:53:05 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dg12.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDG125-60e4af48c9e39c; Fri, 06 Nov 2009 15:52:48 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1N6Vma-0006PI-To for rs_out_1@blacksheep.org; Fri, 06 Nov 2009 20:51:44 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1N6Vma-0006P9-81 for rsgb_lf_group@blacksheep.org; Fri, 06 Nov 2009 20:51:44 +0000 Received: from mtaout01-winn.ispmail.ntl.com ([81.103.221.47]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1N6VmW-00058P-V8 for rsgb_lf_group@blacksheep.org; Fri, 06 Nov 2009 20:51:43 +0000 Received: from know-smtpout-1.server.virginmedia.net ([62.254.123.1]) by mtaout01-winn.ispmail.ntl.com (InterMail vM.7.08.04.00 201-2186-134-20080326) with ESMTP id <20091106205135.OLQZ17029.mtaout01-winn.ispmail.ntl.com@know-smtpout-1.server.virginmedia.net> for ; Fri, 6 Nov 2009 20:51:35 +0000 Received: from [86.27.93.99] (helo=jimdesk) by know-smtpout-1.server.virginmedia.net with esmtp (Exim 4.63) (envelope-from ) id 1N6VmR-0001eD-3y for rsgb_lf_group@blacksheep.org; Fri, 06 Nov 2009 20:51:35 +0000 From: "James Cowburn" To: References: <9afca2640911060845r17eb75daracad4f874c3a1c9c@mail.gmail.com> Date: Fri, 6 Nov 2009 20:51:33 -0000 Message-ID: <001e01ca5f22$ec89c8a0$0617aac0@jimdesk> MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 In-Reply-To: <9afca2640911060845r17eb75daracad4f874c3a1c9c@mail.gmail.com> Thread-Index: AcpfANmrJD5svWuVTNimu9mgaO/I+QAIOdUg X-Cloudmark-Analysis: v=1.0 c=1 a=yRNOrxR5oUYA:10 a=F3M5lZpKAAAA:8 a=fnYqA7hvAAAA:8 a=j6Q1dnSHAAAA:8 a=1XLbTVPQbCnreGn2TE0A:9 a=GPhipbhWb2RzmY3oCdcA:7 a=BjsLRpkuF1Pg2McoB6RUtezPdMUA:4 a=wk6s2zzMB60A:10 a=gA6IeH5FQcgA:10 a=NWVoK91CQyQA:10 a=nokx4-U_Vn_8P93Y:21 a=kEQlG8njoTSnsovZ:21 a=SSmOFEACAAAA:8 a=G0SVe0yW0fni6X1cu5IA:7 a=2kdb_T4Wx2JiaKVlTCs11zGO-sQA:4 X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,HTML_FONT_BIG=0.256,HTML_MESSAGE=0.001 Subject: LF: RE: G3XBM: 500kHz ERP increased by 6dB - WSPR reports please Content-Type: multipart/alternative; boundary="----=_NextPart_000_001F_01CA5F22.EC89C8A0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.4 required=5.0 tests=HTML_50_60, HTML_FONTCOLOR_UNKNOWN,HTML_FONT_BIG,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-IP: 193.82.116.20 ------=_NextPart_000_001F_01CA5F22.EC89C8A0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Roger! Well done! You are booming into Biggleswade! You used to be in the -20db and below zone now its -11 and better. Uber QRO and you make me look very QRPp!! My problem is down to lack of vertical height (5.5M) and lousy earth (50 ohm at a guesstimate). I'm going to ask Santa for 2 sets of swaged poles to give me 40' height and then run a lot more earths and radials out. With that I calculate I can go from about 0.1% eff up to 2% and get abt 500mW erp. With best regards Jim Dr. James Cowburn G7NKS _____ From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Roger Lapthorn Sent: 06 November 2009 16:46 To: rsgb_lf_group@blacksheep.org Subject: LF: G3XBM: 500kHz ERP increased by 6dB - WSPR reports please Today I modified my 500kHz antenna. The 28MHz halo up at the top of the 5-6m vertical section (which was the coax feed to the 28MHz halo) was removed and replaced by a spiral inductance/ top capacity hat consisting of around around 8 "spiralling in" turns in the space occupied by the original halo. Seeing my initial reports from M0BMU I am some 5-6dB stronger than I was before, I guess because more of the antenna current is in the vertical section. The measured antenna current is not much different though. Please listen for me on 500kHz WSPR and let me know if I am now stronger than before. 73s Roger G3XBM -- ------------------------------------------------------------- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk G3XBM GQRP 1678 ISWL G11088 ------=_NextPart_000_001F_01CA5F22.EC89C8A0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Roger!<= /o:p>

 

Well done! You= are booming into Biggleswade!  You used to be in the -20db and below zone now its= -11 and better.  Uber QRO and you make me look very QRPp!!

 

My problem is= down to lack of vertical height (5.5M) and lousy earth (50 ohm at a guesstimate).   I= ’m going to ask Santa for 2 sets of swaged poles to give me 40’ height and= then run a lot more earths and radials out.  With that I calculate I can go= from about 0.1% eff up to 2% and get abt 500mW erp.

 

With best regar= ds

 

 

Jim=

 

 

Dr. James Cowbu= rn G7NKS

 

From: owner-rsgb_lf_group@blac= ksheep.org [mailto:owner-= rsgb_lf_group@blacksheep.org] On Behalf Of Roger Lapthorn
Sent: 06 November 2009= 16:46
To: rsgb_lf_group@blacksheep.org
Subject: LF: G3XBM: 500= kHz ERP increased by 6dB - WSPR reports please

 

Today I modified my 500kHz antenna. The 28MHz= halo up at the top of the 5-6m vertical section (which was the coax feed to the 28MHz halo) was= removed and replaced by a spiral inductance/ top capacity hat consisting of ar= ound around 8 "spiralling in" turns in the space occupied by the= original halo.  Seeing my initial reports from M0BMU I am some 5-6dB st= ronger than I was before, I guess because more of the antenna current is in= the vertical section. The measured antenna current is not much different= though.

Please listen for me on 500kHz= WSPR and let me know if I am now stronger than before.

73s
Roger G3XBM

--
-------------------------------------------------------------
http://g3xbm-qrp.blogspot.c= om/
http://www.g3xbm.co.uk
G3XBM    GQRP 1678      ISWL G11088

------=_NextPart_000_001F_01CA5F22.EC89C8A0--