Hi Hugh Let me get in before the experts and we can maybe all learn some more. Polarisation is vertical, its a capacitive probe. Like all antennas it needs an earth or a counterpoise etc. Two identic
Hello Group, My apologies if this topic has already been covered, but I have trawled back through many LF E-mails and can't find any discussion of it. I have been persuaded to build a PA0RDT miniwhip
Hello Hugh, Though it may not make sense, mounting orientation is irrelevant. And the feed line does not need to run vertical either. I have tested the antenna at the same "position in space" with tw
Hi Hugh, LFers, Being that it is a capacitive probe, the orientation doesn't matter with such a small "antenna" portion. I think you are correct about it having to "work against" something. That expl
Thankyou very much to those who answered my questions. When I have used an E-field probe to explore unwanted radiation from circuit boards, the orientation of the probe had an effect on the signal st
Hello Hugh, The model i have in my mind is a capacitive divider that is within an E field (TX signals and noise). There are 2 plates, the probe and the counterpoise. The counterpoise has a C against
