Message-ID: <4C7FE4DD.7040005@iup.uni-heidelberg.de>
Date: Thu, 02 Sep 2010 19:54:37 +0200
From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= <schaefer@iup.uni-heidelberg.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <AANLkTimUDj5oaFLwDGHhjjjFLFLsNVAhjorRAi+zs1LT@mail.gmail.com> <8CD18D871990A26-1370-24FA@Webmail-d118.sysops.aol.com>
In-Reply-To: <8CD18D871990A26-1370-24FA@Webmail-d118.sysops.aol.com>
Subject: Re: LF: ERP calculation (revised)
Content-Type: multipart/alternative;
 boundary="------------000407090303050901010609"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org


--------------000407090303050901010609
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

Hello Markus, Roger, LF,

Am 02.09.2010 19:07, schrieb Markus Vester:
>
> Note this is using the radiation resistance for a loop in free space, 
> as the effect of ground is already included in the earth antenna 
> picture. For an above-ground loop with a mirror image beneath it, 
> radiation resistance would be doubled.

Can the ground/soil be seen as a mirror for LF? It depends on the 
conductance and Epsilon R of course, but i mean the "normal" conds ;-)

73, cu, Stefan

--------------000407090303050901010609
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id o82Hskmc023449

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content=3D"text/html; charset=3DUTF-8" http-equiv=3D"Content-Type"=
>
  <title></title>
</head>
<body bgcolor=3D"#ffffff" text=3D"#000000">
Hello Markus, Roger, LF,<br>
<br>
Am 02.09.2010 19:07, schrieb Markus Vester:
<blockquote   cite=3D"mid:8CD18D871990A26-1370-24FA@Webmail-d118.sysops.ao=
l.com"   type=3D"cite"><!-- end of AOLMsgPart_2_50ca1a4a-e30f-4696-be2e-0f=
899db8bbb4 --><font   color=3D"black" face=3D"arial" size=3D"2"><br>
  <div>Note this is using the radiation resistance for a loop in free
space, as the effect of ground is already included in the earth antenna
picture. For an above-ground loop with a mirror image beneath it,
radiation resistance would be doubled. </div>
  <div>=C2=A0</div>
  </font></blockquote>
<br>
Can the ground/soil be seen as a mirror for LF? It depends on the
conductance and Epsilon R of course, but i mean the "normal" conds ;-)<br>
<br>
73, cu, Stefan<br>
</body>
</html>

--------------000407090303050901010609--