Return-Path: Received: from mtain-dd06.r1000.mx.aol.com (mtain-dd06.r1000.mx.aol.com [172.29.64.146]) by air-dd07.mail.aol.com (v129.10) with ESMTP id MAILINDD073-865d4dbd26ba11b; Sun, 01 May 2011 05:24:10 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dd06.r1000.mx.aol.com (Internet Inbound) with ESMTP id BA403380000A4; Sun, 1 May 2011 05:24:07 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QGSrl-0001LH-Os for rs_out_1@blacksheep.org; Sun, 01 May 2011 10:23:01 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QGSrl-0001L8-4e for rsgb_lf_group@blacksheep.org; Sun, 01 May 2011 10:23:01 +0100 Received: from mail-yw0-f43.google.com ([209.85.213.43]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QGSri-0004KF-Id for rsgb_lf_group@blacksheep.org; Sun, 01 May 2011 10:23:01 +0100 Received: by ywa6 with SMTP id 6so2318878ywa.16 for ; Sun, 01 May 2011 02:22:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=Ut3Sx9UBwEjNgVx4Cv/8c0vl04UUVJmaX2yeVCPJIVo=; b=GVT3Lt+UCPOoRg42u6S5n1fNMElpHMTxy+OuXc/gwbBnnr2CX+Hiq4K9Yv+FoJhGzu Q4sjn3vYJKd0o6wKlxkUXHXSab+C5PP1WqGjHAgUMXo8E9peLq1LDR1LVe6El56OIEOK qpH2o/bW6X+OL5tsOLpbw9teouUpNVOP8MMxU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=DBtdmnqjh7/0yWOjE7Dd7Edtu8uH+w1jU8nmjgxdIBBHW9ve8aqpHeixETd1uZBXHT 7oTZXi+v57JELrYMjFnF52x9E5U0ApFTCl7EkT5KzqH5vWfM7gTdYXYadf/LWZ742ZmO z3koXBaqrEu1WIVGGMJvr/F1BSBQz9EbbaAn4= MIME-Version: 1.0 Received: by 10.101.138.14 with SMTP id q14mr4397663ann.49.1304241770735; Sun, 01 May 2011 02:22:50 -0700 (PDT) Received: by 10.100.195.5 with HTTP; Sun, 1 May 2011 02:22:50 -0700 (PDT) In-Reply-To: References: Date: Sun, 1 May 2011 10:22:50 +0100 X-Google-Sender-Auth: 5UKZkIGMBFM20PtFurWpOqEJiCc Message-ID: From: Gary - G4WGT To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Re: GB4FPR 502 KHZ INTERNATIONAL MARCONI DAY 30/4/2011 Content-Type: multipart/alternative; boundary=0016e6d27c6272277704a23373d8 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d007.1 ; domain : gmail.com DKIM : fail x-aol-sid: 3039ac1d40924dbd26b73d67 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --0016e6d27c6272277704a23373d8 Content-Type: text/plain; charset=ISO-8859-1 Hi Dennis, Alan G3NYK has an ERP spreadsheet calculator which should be a good estimate & make the calculations easier. Calculators at the bottom of the page & you will find the page here :- http://www.alan.melia.btinternet.co.uk/programs.htm#Programs 73 Gary - G4WGT. On 1 May 2011 09:49, DENNIS EASTERLING wrote: > Hi Luis > > In answer to your question, I calculated using the following web site: > www.smeter.net/antennas/simple-t-antennas.php and then followed the link > to TAntenna which provided a simple Basic program tantenna.exe by > A.J.Edwards G4GGQ. Probably the easiest way is to use a google search for > T Antennas and follow the links. > > The outcome is probably inexact as my antenna is really of the unbrella > type with the tops sloping down, however when I converted from true 'T' to > the present setup, no difference was noticed or reported. See attached > sketch. > > 73 Dennis M0JXM > > ----- Original Message ----- > *From:* Luis EA3WX > *To:* rsgb_lf_group@blacksheep.org > *Sent:* Saturday, April 30, 2011 7:32 PM > *Subject:* Re: LF: Re: GB4FPR 502 KHZ INTERNATIONAL MARCONI DAY 30/4/2011 > > Hi Dennis, > > A question, please. I am beaconing on 502,25 KHz. My transmitter puts 35 W > into a T antenna, high 20 m and an horizontal capacitor top of 10 m. > > With others ham fellows we are discussing what ERP I am sending, but we > have no results. Can you tell me how measure or are you calculating or > estimating this ERP? > > Thanks, 73 > > Luis, EA3WX > > *From:* DENNIS EASTERLING > *Sent:* Saturday, April 30, 2011 8:55 PM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* LF: Re: GB4FPR 502 KHZ INTERNATIONAL MARCONI DAY 30/4/2011 > > Hi Graham > > I tried sending to you 1630-1635 and 1940-1945 local times today Saturday > 30 04 2011, but no reply. I guess you could not hear me, or I you. I > send CW 25watts into a 'T' aerial 20m top and 10m vertical. Estimated erp > 250mW max. Anyway, I hope you had a good day with plenty of DX. > > 73 Dennis M0JXM > > > > --0016e6d27c6272277704a23373d8 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi Dennis,

Alan G3NYK has an ERP spreadsheet calculator= which should be a good estimate & make the calculations easier. Calcu= lators at the bottom of the page & you will find the page here :-


73

Gary - G4WGT.


=
On 1 May 2011 09:49, DENNIS EASTERLING <denn= is.easterling@btinternet.com> wrote:
Hi Luis
=A0
In answer to your question, I calcula= ted using the=20 following web site:
www.smeter.net/antennas/simp= le-t-antennas.php=20 and then followed the link to TAntenna which provided a simple Basic progr= am=20 tantenna.exe by A.J.Edwards G4GGQ.=A0=A0 Probably the easiest way is to=20 use a google search for T Antennas and follow the links.
=A0
The outcome is probably inexact as my= antenna is=20 really of the unbrella type with the tops sloping down, however when I con= verted=20 from true 'T' to the present setup, no difference was noticed or= =20 reported.=A0=A0 See attached sketch.
=A0
73 Dennis M0JXM
----- Original Message -----
From:=20 Luis EA3WX=20
Sent: Saturday, April 30, 2011 7:3= 2=20 PM
Subject: Re: LF: Re: GB4FPR 502 KH= Z=20 INTERNATIONAL MARCONI DAY 30/4/2011

Hi Dennis,
=A0
A question, please. I am beaconing on 502,25 KHz. My transmitter pu= ts 35=20 W into a T antenna, high 20 m and an horizontal capacitor top of 10 m.
=A0
With others ham fellows we are discussing what ERP I am sending, bu= t we=20 have no results. Can you tell me how measure or are you calculating or= =20 estimating this ERP?
=A0
Thanks, 73
=A0
Luis, EA3WX
=A0
Sent: Saturday, April 30, 2011 8:55 PM
Subject: LF: Re: GB4FPR 502 KHZ INTERNATIONAL MARCONI DAY=20 30/4/2011
=A0
Hi Graham
=A0
I tried sending to you 1630-1635 an= d 1940-1945=20 local times today Saturday 30 04 2011, but no reply.=A0=A0 I guess you could not hear me, or I you.=A0=A0= I send=20 CW 25watts into a 'T' aerial 20m top and 10m vertical.=A0=A0 Est= imated=20 erp 250mW max.=A0=A0 Anyway, I hope you had a good day with plenty of=20 DX.
=A0
73 Dennis M0JXM
=A0

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