[Elecraft] K3 Below 500 KHz RX Antenna

[Jim Miller]

If you just want to hear something without regard to directionality then a
longish wire on the ground even if the far end is unterminated will work to
receive signals. You may need a preamp or just turn on the preamp in the
K3. Use the RX antenna input. Simple is good, sometimes good enough.

jim ab3cv

On Sat, Jul 18, 2015 at 9:08 PM, Milverton M. Swire via Elecraft <
elecraft at mailman.qth.net> wrote:

> Jim / Don, thanks you both for your input. Albeit brief, I now have food
> for thought and some bedtime reading to do on Beverage antennas .
> ((((73)))) Milverton / W9MMS.
>
>       From: Jim Brown <jim at audiosystemsgroup.com>
>  To: elecraft at mailman.qth.net
>  Sent: Saturday, July 18, 2015 7:20 PM
>  Subject: Re: [Elecraft] K3 Below 500 KHz RX Antenna
>
> I don't completely agree with that. I have a pair of 2-wire Beverages
> that are approximately one wavelength on 160M. I use them on the AM
> broadcast band and find them quite effective as RX antennas. They are
> not as directional on the low end of the band, but they still have SOME
> directivity, and with the DX Eng preamp, they are quite sensitive.
>
> After installing my new synth boards in the radio with the KBPF and
> doing the mods, I tried listening down to 100 kHz. Around mid-day, I had
> good copy of a CW beacon about 125 miles away. These antennas are too
> short to be called Beverages at those low frequencies, but they do work
> well as RX antennas.
>
> 73, Jim K9YC
>
>
>
> On Sat,7/18/2015 2:55 PM, Don Wilhelm wrote:
> > Not practical for LF reception.
> >
> > While the beverage is an excellent and directional receive antenna, it
> > must be at least 1 wavelength long to be effective, longer is better.
>
>
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