[Elecraft] K3S ELF 10KHz

[Mike Morrow]

I didn't understand the reference to audio either.

When I on the crew of a US ballistic missile submarine more than 40 years ago, our main communications receivers were AN/BRR-3 units whose full frequency range was only 14 to 30 kHz.  These received signals from coastal stations operating at megawatt output levels, but there was no one near such a station with his ear drums damaged by or even sensitive to the station's continuous output.  :-)

Anyone can listen to such signals as they exist today.  I'm not sure what the point would be...everything down there is very deeply encrypted.

Mike / KK5F

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>> Wait a second, there's a big difference between a sound pressure wave
>> and an electromagnetic wave at 10-kHz...

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> Receivers THAT I AM AWARE OF begin coverage at 15 khz.  Used to listen to
> 16 khz from GBR in England on an RAL when lived in Florida.
>
> After all, 10 khz -is- audio.