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> > I enjoyed reading your article published in 2008 about wideband loop matching using cascaded balanaced>symmetrical lattice network where were cascaded together two first order lattices. When the

Hi Chris, I enjoyed reading your article published in 2008 about wideband loop matching using cascaded balanaced symmetrical lattice network where were cascaded together two first order lattices. My

The efficiency of small transmitting loops, and other parameters, can be had at the following URL: https://www.66pacific.com/calculators/small-transmitting-loop-antenna-calculator.aspx It is quite

Jerry, I used a 1788, chose it over the 1786 because 40 is very active and 10 is under used. Seems I can hear many FT8 signals, tons of CB stations a bit lower and nothing at all on 10CW or

Thanks, Mike.? I have a lot of loopiness to learn, although some already suggest I'm an expert (at loopiness).

Martin, The misconseption with Duffy's concept cleared up when I re-wrote his quation differently as: SND= 10log S / N ext. - 10 log S/ ( Nint + N ext) instead of his final convertion as? SND = 10

Hi Raphael, Signal to noise degradation (SND) is a concept that was suggested by Owen Duffy. https://owenduffy.net/blog/?p=22789 It is a mechanism that can be used in order to determine if a

Hi John Yes i agree..not so sure about using inside though. Check my qrz.com g0zen

Not quite sure what you're trying to say with the bulk of your comment - you seem to be mixing terms yourself e.g. SNR/SND/SDR - but I'm pretty sure this Owen Duffy is the guy who used to be in the

Sometimes the minimum coupling to the prevalent *local interference source* can be achieved by tilting the loop, so it is at some inbetween orientation for the best SNR. Usually still fairly close to

Simon, In the case of small confined areas where one cannot put up a full size wire loop or Yagi or dipoles/end fed long wires they do the job. I've worked on HF 20 meters well over 11000 kilometers

Hi Martin, Since I am new on this site I decided to spend some time finding out who is Mr. Owen Duffy,? VK20MD whom you have been frequently referencing regarding SND evaluation of loop antennae. Is

Sorry I guess I misunderstood. As you talk abt EmComms 1st thing that came in my mind was: NVIS radiation patterns. And this prop mode is ok below 14MHz or so. Anyway 10m is easy to solve as other

Hi, Jerry. FYI, this group is mainly for small receiving loops such as used for receiving VLF (3 to 30 kHz) LF (30 to 300 kHz) and MF (300 kHz to 3 MHz) frequencies. You might receive more comments

40m hands down..10m hardly open, 40 always ( nearly) for local ish ragchews and if lucky dx.. A 10m antenna is so easy to make and hide..( use cb mobile whip,1/4w etc) Simon

I've read about the two different orientations of loop antennas:? either vertical or horizontal. What happens inbetween those two extremes for transmit or receive? Are inbetween orientations useful

40 meter is not mandatory. I guess my question is which is "nicer to have", 40 meters or 10 meters? I guess for me the question is is it worth rigging up a separate antenna for 10 meters to get the

If 40m is mandatory and u are involved in local EmComms use the 1788. I have a 1786 since 1995 and actually I have a single element delta loop on 10. I use the loop on 30 ... 12m, installed at H pol.

40m is more useful, so personally I'd choose that option. You can build a wire dipole(s) or use a retuned CB antenna on the upper HF bands (including 10m) and it will be more efficient than a small

I have decided on either the MFJ-1786 (10 to 30 meters) or the MFJ-1788 (15 to 40 meters) mag loop for my sole HF antenna. I'm trying to decide which one might be best considering: * As meters