[Lowfer] [lowfrequency] Cave Communications Using LF Frequencies

[Zack Widup]

"Troglodyte" = "cave dweller"
:-)

73, Zack W9SZ

On Fri, Feb 26, 2010 at 2:49 PM, Paul Daulton <k5wms at centurytel.net> wrote:
> Some years ago I came across a site on cave communicaation using 73 khz,
> there was a 73 khz phasing type ssb tranceiver. I adthink the guys call
> themselves "troglytes" or something similar.
> Paul k5wms
> ----- Original Message -----
> From: "Mike.WE0H" <we0h at gmx.com>
> To: "Lowfer" <lowfer at mailman.qth.net>
> Sent: Friday, February 26, 2010 12:38 PM
> Subject: [Lowfer] [lowfrequency] Cave Communications Using LF Frequencies
>
>
>> Bootleg LF operations or what???
>>
>> Mike
>> WE0H
>>
>>
>>
>>
>> -------- Original Message --------
>> Subject: [lowfrequency] Cave Communications Using LF Frequencies
>> Date: Fri, 26 Feb 2010 18:23:25 -0000
>> From: Adam E <gccengineering at yahoo.com>
>> Reply-To: lowfrequency at yahoogroups.com
>> To: lowfrequency at yahoogroups.com
>>
>>
>>
>>
>>
>>
>> I was reading an article while I was looking around for radio projects
>> for long wave, and I came across this article about a teenager who was
>> said to be an inventor of something that people thought it could not be
>> done. He used a huge loop antenna with a 2 way LF radio, probably not
>> FCC approved or licensed, not part 15 to transmit a text signal deep in
>> the holes of the Earth at 1000 feet. Main thing is that how did he get
>> rights to text on LF when he is not licensed by the FCC, is he using the
>> 160 kHz to 190 kHz band to send the signals back and forth? Or is he
>> using VLF communications? I thought this might interest some long wave
>> radio hobbyists and techs, and engineers. There is no project or
>> schematic for this, so this maybe something he probably is used a dot
>> matrix display to do it. Is there a text data project out there that
>> uses a lowfers transmitter? Lets just hope he gets his FCC experimenters
>> license and patents applied. Now I feel that there is more to be
>> discovered today in digital LW technology.
>>
>> http://www.npr.org/templates/story/story.php?storyId=123116417
>> <http://www.npr.org/templates/story/story.php?storyId=123116417>
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>
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