Mini-whip E-field probe

There is little doubt that I shall have to try one of these on LF and MF and possibly other bands next autumn. I have the time from now until then to find the best spot to mount one. I may buy one from PA0RDT, although I have had success in the past with my own.

See https://sites.google.com/site/g3xbmqrp3/antennas/efp

PA0RDT mini-whip

Several people use this very compact antenna on LF and MF for RX. It is an active antenna for receive only. I am thinking of buying one. There was an interesting article on http://www.amateurradio.com/ about optimum height mounting.

Analysis of the PA0RDT E-field probe RX antenna

Image of miniwhip on VK1OD's website

VK1OD has done an interesting analysis of the PA0RDT E-field probe miniwhip receiving antenna. This is very popular as an effective antenna from 8.9kHz right through to the HF bands. I have used my own versions on the VLF, LF and MF bands with great success, but I commend the PA0RDT design to you. His design uses readily available semiconductors to give excellent IP2 and IP3 figures. You may be surprised how something this tiny and simple can work so well if mounted away from the house on a small pole. Remember, you do NOT need big antennas to receive on the lower bands: it is S/N that matters not very low noise figures. VK1OD's analysis is somewhat harsh: in my view it works as a true E-field probe should, even at VLF.