[Elecraft] K3S ELF 10KHz

Thu Mar 23 17:08:23 EDT 2017

Absolutely. You would need an antenna connected to an audio transducer (speaker or 'phones) to hear it. (Perhaps one would call it a non-conversion receiver.) 

An audio amplifier helps, but you have to deal with the 120 Hz buzz caused by the 60 Hz power line fields all around. A high pass filter with a cutoff above 150 Hz helps a great deal. 

Listening to the variety of squeaks, chirps and other noises produced by electronic discharges all over the planet is a fascinating hobby in itself. They are commonly referred to as 'Sferics, short for atmospherics. 

73 Ron AC7AC

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of thelastdb
Sent: Thursday, March 23, 2017 6:57 AM
To: Ken G Kopp; wa9fvp; elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3S ELF 10KHz

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

Myron WVØHPrinted on Recycled Data -------- Original message --------From: Ken G Kopp <kengkopp at gmail.com> Date: 3/23/2017  7:41 AM  (GMT-07:00) To: wa9fvp <repair at willcoele.com>, elecraft at mailman.qth.net Subject: Re: [Elecraft] K3S ELF 10KHz 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.

73

K0PP

On Mar 22, 2017 22:22, "wa9fvp" <repair at willcoele.com> wrote:

> Is it possible, maybe in the next firmware rev, to extend the bottom 
> end of the K3S down to 10KHz?
>
>
>
> -----
> Jack WA9FVP
>
> Sent from my home-brew I5 Core PC
> --
> View this message in context: http://elecraft.365791.n2.
> nabble.com/K3S-and-VLF-tp7628247p7628423.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net Please help support this email 
> list: http://www.qsl.net/donate.html Message delivered to 
> kengkopp at gmail.com
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message delivered to thelastdb at gmail.com ______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message delivered to ron at elecraft.com