Message-ID: <4DDCBE54.7000002@dsl.pipex.com>
Date: Wed, 25 May 2011 09:31:16 +0100
From: Chris Dillon <c.r.dillon@dsl.pipex.com>
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Subject: Re: LF: 82 Hz
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Interesting - looking closely I can see what might be very short burst 
at 77Hz at around 0400 UTC and what might be a similar short burst at 
75Hz around 0645 UTC.  I can't see anything else except for the 4 minute 
burst at 82 Hz around 0530utc. This burst is usually the precursor to 
the main transmission 90 minutes or 150 minutes later - perhaps checking 
the transmitter. This morning, however, there has been no 0800 utc 
transmission.

73 Chris G3WCD

On 25/05/2011 08:00, mal hamilton wrote:
> ELF
> Around 82 - 83 Hz area there seems to be other activity as well as 
> zevs. Observed what looks like short bursts periodically, maybe not 
> related but strange these short bursts are around this frequency area 
> and not visible elswhere. I did see a short burst also on 77 Hz
> at 0407 utc this morning.
> No interest in this activity other than checking RX sensitivity and 
> Antenna.
> Using S/Lab and computer sound card and 150 metre inv L antenna
> G3KEV


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    Interesting - looking closely I can see what might be very short
    burst at 77Hz at around 0400 UTC and what might be a similar short
    burst at 75Hz around 0645 UTC.&nbsp; I can't see anything else except for
    the 4 minute burst at 82 Hz around 0530utc. This burst is usually
    the precursor to the main transmission 90 minutes or 150 minutes
    later - perhaps checking the transmitter. This morning, however,
    there has been no 0800 utc transmission. <br>
    <br>
    73 Chris G3WCD<br>
    <br>
    On 25/05/2011 08:00, mal hamilton wrote:
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      <div><font face="Arial">ELF</font></div>
      <div><font face="Arial">Around 82 - 83 Hz area there seems to be
          other activity as well as zevs. Observed what looks like short
          bursts periodically, maybe not related but strange these short
          bursts are around this frequency area and not visible
          elswhere. I did see a short burst also on 77 Hz</font></div>
      <div><font face="Arial">at 0407 utc this morning. </font></div>
      <div><font face="Arial">No interest in this activity other than
          checking RX sensitivity and Antenna.</font></div>
      <div>&nbsp;</div>
      <div><font face="Arial">Using S/Lab and computer sound card and
          150 metre inv L antenna</font></div>
      <div>&nbsp;</div>
      <div><font face="Arial">G3KEV</font></div>
      <div>&nbsp;</div>
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