Actually, tune for resonance, not 1:1 SWR. Loops tend to be 50 Ω, but that isn’t the right measurement. Luckily, tuning for maximum noise is the same as tuning for resonance.
wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 14, 2020, at 7:36 PM, Fred Jensen <k6...@foothill.net> wrote: > > Small mag loops can be effective antennas if you can't put up 5 over 5 over > 5. One caveat: They are resonant transformers and the loop MUST be exactly > resonant at your QRG. This means, bypass any ATU and tune the loop [only] for > 1:1 SWR. Using the "get it close and let the ATU match it" scheme will lead > to a round, fairly pricey dummy load. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 5/14/2020 7:19 PM, Phil Kane wrote: >> On 5/13/2020 12:42 PM, brianchapn...@rogers.com wrote: >> >>> Im thinking of a loop. I've had good luck with them. Any thoughts? >> I've been using a loop on the porch of our ground level apartment. At >> 15 watts. It is useless - can't get it to tune properly and I often >> think that I would have a better signal with my dummy load at 100 watts. >> If you are getting good luck you must be doing something right. At >> east you have the advantage of 34 stories - good for you. >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wun...@wunderwood.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
