[Lowfer] 9kHz

Douglas D. Williams kb4oer at gmail.com
Tue Dec 3 05:58:49 EST 2013


Dex, I believe they have had some success in Europe detecting sub 9kHz
signals out to several hundred miles using QRSS5000 and slower. From what I
have read, they tend to feed their antennas directly into the computer's
Line or Mic input and use Spectrum Lab for the receive software. Spectrum
Lab can be "locked" to a military VLF signal to eliminate drift. I have
successfully managed to lock Spectrum Lab to NAA on 24 kHz. I don't
remember the exact steps to do so, and would have to figure it out again,
lol.

I wouldn't exactly call QRSS5000 a communications mode, lol.

-Doug


On Mon, Dec 2, 2013 at 6:45 PM, Dexter McIntyre W4DEX
<dexter.mc at gmail.com>wrote:

> Douglas D. Williams wrote:
>
>> Does anyone on this list have any knowledge of Rich, WD4RBX?
>>
>>
> He is active on the sub9khz yahoo group:
>
> http://groups.yahoo.com/neo/groups/sub9khz/info
>
>  I am very much interested in sub 9kHz, but Rich wants to use OPERA to
>> experiment, and I have little interest in OPERA.
>>
>>
> Same here Doug.
>
> I did some local test a while back on 9 kc.  A little over one mile is as
> far as I could detect the signal.  If I ever get what I think may be one
> chance in a million you could detect my signal I will let you know.
>
> Dex
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