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Message-ID: <C38D87D2AED243D59ED8357663143FF4@IBM7FFA209F07C>
From: "Chris" <c.ashby435@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
References: <80E0204D3E534137903FE0B8E499597F@IBM7FFA209F07C> <4D0783FC.3090107@iup.uni-heidelberg.de>
Date: Tue, 14 Dec 2010 16:27:41 -0000
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Subject: Re: LF: Earth Electrodes
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HiStefan,
Yes, but 600m is VERY long! The wire even laying on the ground I would=
 expect to radiate quite well at 137 with that length! And how many wa=
tts?? ERP??
I am sure 8970 would do well through the ground at the sort of powers=
 being spoken about. Probably ideal for submarines, as Roger says!
Vy 73, Chris, G4AYT.
  ----- Original Message -----=20
  From: Stefan Sch=E4fer=20
  To: rsgb_lf_group@blacksheep.org=20
  Sent: Tuesday, December 14, 2010 2:49 PM
  Subject: Re: LF: Earth Electrodes


  Hi Chris,

  But how do you explain that i have crossed 49.6 km with a 600m space=
d earth electrode antenna on 8970 Hz? It was rather summer time than=
 winther (regarding QRN)! With the same antenna, my 137 kHz signal was=
 seen 20 dB above noise near Paris in DFCW-3!?????

  73, Stefan


  Am 14.12.2010 15:15, schrieb Chris:=20
    Hi Mal,
    Yes, that is what I had concluded years ago. No harm in trying tho=
ugh!
    Further to your previous e-mail to LF, looks to me like beacons ar=
e now becoming the norm on 136/7kHz band and below. I have no problem=
 with that personally, indeed, I think it preferable to a QSO taking=
 forever! I woud like to see full idents though, no matter how slow.
    Vy 73,
    Chris, G4AYT.

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3DISO-8859-1" http-equiv=3DContent=
-Type>
<META name=3DGENERATOR content=3D"MSHTML 8.00.6001.18975"></HEAD>
<BODY bgColor=3D#ffffff text=3D#000000>
<DIV><FONT size=3D2 face=3DArial>HiStefan,</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial>Yes, but 600m is VERY long! The wire=
 even laying on=20
the ground I would expect to radiate quite well at 137 with that lengt=
h! And how=20
many watts?? ERP??</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial>I am sure 8970 would do well <EM>thro=
ugh the=20
ground</EM> at the sort of powers being spoken about. Probably ideal=
 for=20
submarines, as Roger says!</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial>Vy 73, Chris, G4AYT.</FONT></DIV>
<BLOCKQUOTE   style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT:=
 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"   dir=
=3Dltr>
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV     style=3D"FONT: 10pt arial; BACKGROUND: #e4e4e4; 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, December 14,=
 2010 2:49=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: LF: Earth Electr=
odes</DIV>
  <DIV><BR></DIV>Hi Chris,<BR><BR>But how do you explain that i have=
 crossed=20
  49.6 km with a 600m spaced earth electrode antenna on 8970 Hz? It wa=
s rather=20
  summer time than winther (regarding QRN)! With the same antenna, my=
 137 kHz=20
  signal was seen 20 dB above noise near Paris in DFCW-3!?????<BR><BR>=
73,=20
  Stefan<BR><BR><BR>Am 14.12.2010 15:15, schrieb Chris:=20
  <BLOCKQUOTE cite=3Dmid:80E0204D3E534137903FE0B8E499597F@IBM7FFA209F0=
7C     type=3D"cite">
    <META name=3DGENERATOR content=3D"MSHTML 8.00.6001.18975">
    <STYLE></STYLE>

    <DIV><FONT size=3D2 face=3DArial>Hi Mal,</FONT></DIV>
    <DIV><FONT size=3D2 face=3DArial>Yes, that is what I had concluded=
 years ago. No=20
    harm in trying though!</FONT></DIV>
    <DIV><FONT size=3D2 face=3DArial>Further to your previous e-mail=
 to LF, looks to=20
    me like beacons are now becoming the norm on 136/7kHz band and bel=
ow. I have=20
    no problem with that personally, indeed, I think it preferable to=
 a QSO=20
    taking forever! I woud like to see full idents though, no matter=
 how=20
    slow.</FONT></DIV>
    <DIV><FONT size=3D2 face=3DArial>Vy 73,</FONT></DIV>
    <DIV><FONT size=3D2 face=3DArial>Chris,=20
G4AYT.</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>

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