[Elecraft] K3 Below 500 KHz RX Antenna

[Peter Eijlander (PA0PJE)]

Hi Phil,

Ever heard of the "pa0rdt mini-whip"?
Want to know how it performs?

Listen to the WEB-sdr at the Twente University made by PA3FWM.
It uses such a mini-whip created by PA0RDT.

I have one in my backyard, just two metres above the earth on an 
aluminium pole in a plastic box that formerly contained a HP printer 
power-supply.

I regularly listen to the transmissions of the old Alexanderson 
alternator in Grimeton Sweden (callsign SAQ) that transmits on 17.2 kHz 
from time to time but also on all amateur bands up to 28 MHz although 
the upper limit is stated as 20 MHz.
Incredible to be able to receive the alternator on a piece of PCB-copper 
clad of just a few square centimetres... Ok, SAQ's output is in the 
order of 200 kW.
http://alexander.n.se/

The WEB-sdr can be found here:
http://websdr.ewi.utwente.nl:8901/

Mind you it can be very busy !
On Android you should use Mozilla Firefox to listen to it.

Info about the pa0rdt-Mini-Whip can be found here:

http://pi4utr.nl/wp-content/uploads/download/pa0rdt_whip.pdf
The document starts in English but continues in Dutch and Italian.

73,
Peter - P0PJE

Op 2015-07-18 20:52 schreef Phil Hystad:
> What is the cheapest easiest although effective RX antenna for listening to whatever below 500 KHz with a K3 and the new K3SYNA board?
>
> Thanks,
>
> 73, phil, K7PEH
>
> P.S.  This might have been discussed here before but I must have missed it if it was.
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