Message-ID: <004001cb0173$fa152e30$0301a8c0@your91hoehfy9g>
From: "mal hamilton" <g3kevmal@talktalk.net>
To: <rsgb_lf_group@blacksheep.org>
References: <9B1ACF98A3384489B37FABB5028106E9@IBM7FFA209F07C> <4C04D7B8.9020203@iup.uni-heidelberg.de>
Date: Tue, 1 Jun 2010 11:19:53 +0100
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Subject: LF: Re: vertical antenna calculation tool
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Stefan
Some of your emails are flagged UNSAFE ATTACHMENTS or SPAM=20
de mal/g3kev

  ----- Original Message -----=20
  From: Stefan Sch=E4fer=20
  To: rsgb_lf_group@blacksheep.org=20
  Sent: Tuesday, June 01, 2010 10:49 AM
  Subject: LF: vertical antenna calculation tool


  LF, VLF,

  Once i have created an Excel sheet for calculating my vertical kite=
 antenna on 137 kHz. Today i want to share it with you. It is in germa=
n language but usable for everyone anyway i think. It calculates all=
 important parameters of a vertical antenna and shows the resonance cu=
rve.

  I am NO expert in writing excel sheets and it can surely be done muc=
h more impressive and pretty in Java or so, but it just works and show=
s me what happens to the system, if i change one parameter.

  In the yellow fields above, you can type the given parameters like=
 TX power, antenna height, losses and so. In the lower fields, the nee=
ded L for resonance, antenna efficiency, EMRP, ERP, Lambda, wire volta=
ge and so on is calculated. Additionally you can see the resonance cur=
ve of the antenna...

  If you want you can use or modify it, or throw it away ;-)

  73, Stefan/DK7FC

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<DIV><FONT face=3DArial size=3D2>Stefan</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Some of your emails are flagged UNSAF=
E ATTACHMENTS=20
or SPAM </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>de mal/g3kev</FONT></DIV>
<DIV>&nbsp;</DIV>
<BLOCKQUOTE   style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-L=
EFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV     style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color:=
 black"><B>From:</B>=20
  <A title=3DStefan.Schaefer@iup.uni-heidelberg.de     href=3D"mailto:=
Stefan.Schaefer@iup.uni-heidelberg.de">Stefan Sch=E4fer</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A title=3Drsgb_lf_group@=
blacksheep.org     href=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_l=
f_group@blacksheep.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, June 01, 2010=
 10:49=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> LF: vertical antenna=
 calculation=20
  tool</DIV>
  <DIV><BR></DIV><FONT size=3D2><FONT face=3DArial>LF, VLF,<BR><BR>Onc=
e i have=20
  created an Excel sheet for calculating my vertical kite antenna on=
 137 kHz.=20
  Today i want to share it with you. It is in german language but usab=
le for=20
  everyone anyway i think. It calculates all important parameters of=
 a vertical=20
  antenna and shows the resonance curve.<BR><BR>I am NO expert in writ=
ing excel=20
  sheets and it can surely be done much more impressive and pretty in=
 Java or=20
  so, but it just works and shows me what happens to the system, if i=
 change one=20
  parameter.<BR><BR>In the yellow fields above, you can type the given=
=20
  parameters like TX power, antenna height, losses and so. In the lowe=
r fields,=20
  the needed L for resonance, antenna efficiency, EMRP, ERP, Lambda,=
 wire=20
  voltage and so on is calculated. Additionally you can see the resona=
nce curve=20
  of the antenna...<BR><BR>If you want you can use or modify it, or th=
row it=20
  away ;-)<BR><BR>73, Stefan/DK7FC<BR></BLOCKQUOTE></FONT></FONT></BOD=
Y></HTML>

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