Wednesday, July 8, 2009

VLF antenna

18_1_khz

This my vlf antenna, yes it is a deguass coil from an old tv, an tl-074 as instrument amp and BPF ~400 Hz - ~100 KHz



Above is the instrument amplifier and BPF.



The thin black line is a demagnitising coil from an old TV, the picture is taking looking straight south
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4 comments:

  1. VLF antenna « HAM radio homeBREW | Ham Radio Antennas and GearJuly 13, 2009 at 10:14 AM

    [...] The rest is here: VLF antenna « HAM radio homeBREW [...]

    ReplyDelete
  2. Andrew LankfordJuly 16, 2009 at 6:40 AM

    Coolness. Is glfer running native on FreeBSD, with Linux emulation, or on a Linux box? I take it that your antenna and circuitry goes into your soundcard.

    ReplyDelete
  3. OZ2DAKJuly 16, 2009 at 10:31 AM

    Yes it is glfer running native on FreeBSD, though i have not yet committed it to the ports tree.
    Yes it is coil antenna, instrmument amplifier + amp (including a BPF) then into the mic in. The circuitry is supplied with a 9V battery

    ReplyDelete
  4. Andrew LankfordJuly 16, 2009 at 12:14 PM

    SpecLab 2.7 seems to work fairly well with Wine on freebsd, too.

    ReplyDelete

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