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LF: VLF

To: [email protected]
Subject: LF: VLF
From: Stefan Schäfer <[email protected]>
Date: Sat, 22 Sep 2012 23:42:44 +0200
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Am 22.09.2012 23:28, schrieb Graham:
 
Yes  , ref , your  8K  test's  some  time ago  , I remember  you  reached  TH3  ??

You mean TF3HZ? Yes, and 4X1RF. Not only, here is the summary of my /p tests https://dl.dropbox.com/u/19882028/VLF/VLF_11th_all.png
But that was with 500W on a 300m vertical, not from this tiny antenna i'm using here in JN49IK. The 300m kite permission expired in the end of July. So now i'm limited to 100m again.

The ERP is about 20 dB lower here, i.e. below 1 mW. I can't make much more here, the isolators do only withstand 35 kV rms and i'm very close to that...

   , Gary  also  had a  trace  from your  signal.
short  range  ...   Kent ?
 
Well  , OP4H test  , ground  tests  have been  carried out  in the  usa  and several   miniature  test  ranges  using the  output  from a  sound card and a remote  Rx  at the  end of the  garden , giving  levels   round  -45 -50 dB with  'real'   noise  .
OK, in the near field this is much easier as we have seen. Anyway, good start.


73, Stefan

PS: So many emails today!!
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