Roger G3XBM's (Mainly) Amateur Radio Blog

Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.

Showing posts with label pa0rdt. Show all posts

Showing posts with label pa0rdt. Show all posts

10 Sept 2018

E-field probe

My mini-whip E-field probe has arrived from PA0RDT . It will be some time before this RX antenna can be erected as I depend on help these da...

9 Jul 2016

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. The...

3 Jul 2013

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 antenn...

29 Mar 2012

E-field probe tests

This afternoon I built a version of the PA0RDT E-field probe. In the shack the interference was horrendous, but in the garden with the lapto...

1 Sept 2009

More on the active LF antenna

Yesterday I used a PA0RDT designed active antenna (but with MPF102 and 2N3904 devices and a 9V supply from a PP3 battery)to listen success...

31 Aug 2009

136kHz WSPR on an active antenna

Just tried a PA0RDT designed active antenna (but just used an MPF102 and 2N3904 instead as these devices were to hand) with 1m of wire, la...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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