[Lowfer] 12.450 KHz Data Signal

Mike.WE0H we0h at gmx.com
Fri Feb 26 13:25:54 EST 2010


Dang, I knew there was a reason to keep those degaussing coils. Looks 
like I will be using one for a VLF loop antenna.

Mike
WE0H


Dex-W4DEX wrote:
> Andy,
> 
> This morning I was able to confirm I am hearing more than one of these signals. 
>   In the recording below you can faintly hear a weaker signal that appears to be 
> polling a network of devices.  If you listen closely you can hear the weaker 
> signal before, between and after the two transmissions of the stronger signal.
> 
> http://www.w4dex.com/vlf/12khz/12450hz_26feb10_c.wav
> 
> Of all the different antennas I have tried the best S/N on this signal is 
> with.... :) :) ...  the degaussing coil of wire removed from an old 27" TV 
> picture tube :)  A few years ago I hung the coil from a tree in the woods a few 
> hundred feet from the house.  I never tested the self resonant freq but by the 
> sound of the noise I receive as I tune the receiver indicates resonance just 
> below 12 KHz.
> 
> The "TE" decode you got indicated nothing I know of.
> 
> Dex


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