Return-Path: Received: from mtain-md05.r1000.mx.aol.com (mtain-md05.r1000.mx.aol.com [172.29.96.89]) by air-di04.mail.aol.com (v129.4) with ESMTP id MAILINDI043-eac44c1a4bcd169; Thu, 17 Jun 2010 12:22:37 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-md05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 14CAD380050A1; Thu, 17 Jun 2010 12:22:33 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OPHpW-0007ZR-L8 for rs_out_1@blacksheep.org; Thu, 17 Jun 2010 17:20:38 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OPHpV-0007ZI-Ie for rsgb_lf_group@blacksheep.org; Thu, 17 Jun 2010 17:20:37 +0100 Received: from out1.ip04ir2.opaltelecom.net ([62.24.128.240]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OPHpS-0001ah-7u for rsgb_lf_group@blacksheep.org; Thu, 17 Jun 2010 17:20:37 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkIPAIfoGUxcEYxb/2dsb2JhbACKVYRJA49WcbgBiSOFGgQ X-IronPort-AV: E=Sophos;i="4.53,432,1272841200"; d="scan'208,217";a="294641947" Received: from unknown (HELO your91hoehfy9g) ([92.17.140.91]) by out1.ip04ir2.opaltelecom.net with SMTP; 17 Jun 2010 17:20:24 +0100 Message-ID: <003f01cb0e38$ff39b300$0301a8c0@your91hoehfy9g> From: "mal hamilton" To: References: <648287CF-49D0-4E2E-BCE5-B20F634C9384@numeo.fr> <569132.43932.qm@web81107.mail.mud.yahoo.com> <4C19DD25.4070109@gmx.com> Date: Thu, 17 Jun 2010 17:20:26 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: RE: Who needs antennas! - success with ground electrodes on500kHz Content-Type: multipart/alternative; boundary="----=_NextPart_000_003C_01CB0E41.608E1B20" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40, HTML_FONTCOLOR_UNSAFE,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: 3039ac1d60594c1a4bc93617 X-AOL-IP: 193.82.116.20 ------=_NextPart_000_003C_01CB0E41.608E1B20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tony I am QRV on 137 and 500. I will be on both band later tonite around= 1900utc. Normal CW on 502.6 and 137. You should hear me. 73 de mal/g3kev ----- Original Message -----=20 From: Tony Baldwin=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Thursday, June 17, 2010 11:18 AM Subject: Re: LF: RE: Who needs antennas! - success with ground elect= rodes on500kHz I will leave mine on overnight, although it would be a miracle if yo= u made it this far on my mediocre set up. I might also lay some wire out and make an "earth antenna" too. I'm reasonably new to the group, just re-registered, although I did= lurk in the background last winter. The intention is to get myself a better setup for the winter months= and build myself a transmitter for 136 and maybe have some fun along= the way. Station location is fairly close to Mizen Head, the opposite end of= Ireland to Finbarr (extreme SW), in IO51DN. In the meantime I will continue to "lurk" 73, Tony, EI8JK. ----- Original Message -----=20 From: Roger Lapthorn=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Thursday, June 17, 2010 9:56 AM Subject: Re: LF: RE: Who needs antennas! - success with ground ele= ctrodes on500kHz Folks, Well I need to do an estimate of ERP with the "earth antenna", so= will try to measure this in the coming days. Jusging by reports so fa= r the system is about 6-10dB down on my top loaded vertical antenna.= The power from the transverter is 5W still but with the vertical the= ERP was only around 1mW (calculated and measured). So, at a first gue= ss, the ERP is probably around 200uW but perhaps with directivity beca= use of the loop action. Rik, I could run it overnight tonight if you like to see who can= copy me. Anyone else willing and able to listen overnight tonight ple= ase? 73s Roger G3XBM On 17 June 2010 09:30, Mike-WE0H wrote: 3 watts into my 600 meter 70' vertical gets me easy CW copy at= 100 miles in daylight. If you can get a bit over 100 miles with 5 wat= ts CW in daylight with that Earth Electrode antenna, then you know it= works damn good. Mike WE0H --=20 http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM GQRP 1678 ISWL G11088 ------=_NextPart_000_003C_01CB0E41.608E1B20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Tony
I am QRV on 137 and 500. I will be on=   both=20 band later tonite around 1900utc. Normal CW on 502.6 and 137. You shou= ld hear=20 me.
73 de mal/g3kev
 
----- Original Message -----
From:=20 Tony Baldwin=
Sent: Thursday, June 17, 2010= 11:18=20 AM
Subject: Re: LF: RE: Who need= s antennas!=20 - success with ground electrodes on500kHz

I will leave mine on overnight, alt= hough it would=20 be a miracle if you made it this far on my mediocre set up.
I might also lay some wire out and= make an "earth=20 antenna" too.
 
I'm reasonably new to the group, ju= st=20 re-registered, although I did lurk in the background last winter.
The intention is to get myself a be= tter setup for=20 the winter months and build myself a transmitter for 136 and maybe= have some=20 fun along the way.
Station location is fairly close to= Mizen Head,=20 the opposite end of Ireland to Finbarr (extreme SW), in IO51DN.
In the meantime I will continue to= =20 "lurk"
 
73, Tony, EI8JK.
----- Original Message -----
Sent: Thursday, June 17, 20= 10 9:56=20 AM
Subject: Re: LF: RE: Who ne= eds=20 antennas! - success with ground electrodes on500kHz

Folks,

Well I need to do an estimate of= ERP with the=20 "earth antenna", so will try to measure this in the coming days.= Jusging by=20 reports so far the system is about 6-10dB down on my top loaded ve= rtical=20 antenna. The power from the transverter is 5W still but with the= vertical=20 the ERP was only around 1mW (calculated and measured). So, at a fi= rst guess,=20 the ERP is probably around 200uW but perhaps with directivity beca= use of the=20 loop action.

Rik, I could run it overnight tonight if you= like to see=20 who can copy me. Anyone else willing and able to listen overnight= tonight=20 please?

73s
Roger G3XBM




On 17 June 2010 09:30, Mike-WE0H <we0h@gmx.com>= wrote:
3= =20 watts into my 600 meter 70' vertical gets me easy CW copy at 100= miles in=20 daylight. If you can get a bit over 100 miles with 5 watts CW in= daylight=20 with that Earth Electrode antenna, then you know it works damn= =20 good.

Mike
WE0H




--=20
http://g3xbm-= qrp.blogspot.com/
http= ://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM=20    GQRP 1678      ISWL=20 G11088
------=_NextPart_000_003C_01CB0E41.608E1B20--