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Generally speaking they are really only useful as LF and MF receive antennas. Increasing the number of turns also increases the overall conductor length and consequent resistive losses per unit

There's been some interest in flat spiral antennas for HF recently, see: Harry, SM0VPO - http://sm0vpo.altervista.org/antennas/frameant.htm Frank, N4SPP -

Sorry I forgot to provide a link to my Moebius loop webpage, which may possibly be helpful with your experiments. https://www.g8jnj.net/moebius-loop-antenna Regards, Martin

Maybe, maybe not... Personally I think the Youloop is a good example of marketing hype over substance, where a 'special' feature is publicised in order to make a product stand out from the rest of

Quote “ Personally I'm not a great fan of tuned transmit loops on the upper HF bands, as they don't seem to offer much that can't be provided by a much simpler dipole of modest size. ” Said

I? keep the subscription but turned off emails I? receive more than 200 per day The question is simple I m missing something? I have read? a lot of info via the swling page? for the Youloop

It's a not very scientific way of differentiating between the broadband non-resonant receive loops that usually have an amplifier attached, and which typically tend to be the type that is most

Thank you for all the response. Very interesting dialog and links as well. I have read quite a lot of articles and antenna books but it seems that most of them does not discuss the topic or gives the

Hi all I start as Martin i think does with making the feed loop much bigger than needed. And cutting down.. its just easier that way and one uses less materials. ( important if like me you are using

I think everyone’s on the same track here; it’s just a matter of semantics.This is my understanding based on my own non-engineering experience, which should provide my fellow experimenters with

In this instance we are talking about tuned loops, with a separate low impedance 'energising' loop. I'm happy about Simon's comment, as it was only a generalised observation on my part, which I don't

I would have to disagree with Martin about coupling loop size re efficiency. I find it the opposite. More efficient= bigger feed loop. First the 1/5 rule is a staring point, and really should be

Question:? Are we talking about resonant or non-resonant coupling coils?? There is considerable difference in how these should be handled.? I have used a resonant ferrite loop to couple a resonant

For quick and dirty Moebius loop connection at the top, see this video: https://www.youtube.com/watch?v=TkUYdCPFXXs The chapter starting at 2:42 shows how to make it. Not a weather resistant

Forget pm.. Info maybe of use to others.. What you trying to do??

https://zachs-radiopage.blogspot.com/2022/02/the-new-loop-experiment.html It seems that I? m missing something Any ideas? Please PM me . Thanks!

The easiest method during construction is to make a larger coupling loop rotatable through the axis of the loop, so that you can vary the amount of coupling between the two. Changing the shape of the

Hi Read Leigh’s papers on subject..Leigh turner.. Google leigh and magnetic loops My loops all have bigger coupling coils than 1/5.. Also google Steve’s vk5sfa loop experience.. Simon g0zen..

Hi everyone. I really appreciate all the information in this forum. Have been building some small magnetic loops myself based upon coaxial cables. But have really some problems with the coupling loop

Hi Dave, Maybe, maybe not. Like you I, think a lot depends upon how the noise component is distributed. SNR is usually improved by greater directivity of the receive antenna, and omni coverage may