Ham Sticks helically wound hf mobile antennas. Close to 90%.
Sent from my i-Thingamajig > On Mar 23, 2021, at 11:00 PM, Mark Brantana via BVARC <[email protected]> wrote: > > Good presentation. No stranger to asking a stupid question, but I am thinking > of the 10 meter slinky I used to run in my attic years ago. I had it strung > from one end of my apartment attic to the other over some chord; less than 30 > ft. I don’t recall how I tuned it or how long the actual straightened slinky > would have been. Not sure it was that sophisticated. I think I probably used > two slinkies on each side. My log shows the SWR was great. I wonder how this > would be if I had turned this slinky dipole vertically. Probably would yield > a high Q, for sure, but I wonder how far you can carry the concept of coiling > a dipole to shorten its length, and get away with it. > > Mark > N5PRD > >> On Mar 22, 2021, at 1:16 PM, john Parmalee via BVARC <[email protected]> wrote: >> >> First I would like to thank John Portune W6NBC for the presentation and his >> continuing leadership in the ham community. >> >> John Spoke on a 40 meter antenna without radials he has designed. John >> provides an number of construction tips as well the practical advantages of >> a vertical, an often misunderstood antenna, >> >> See his presentation: http://www.k5wh.net/Nars/Club/3-19-21 >> >> For more of the same check out W6NBC.COM >> >> John Parmalee >> [email protected] >> 281-380-3811 >> K5VGM WI2XLJ >> >> >> ________________________________________________ >> Brazos Valley Amateur Radio Club >> >> BVARC mailing list >> [email protected] >> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org >> Publicly available archives are available here: >> https://www.mail-archive.com/[email protected]/ > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > [email protected] > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/[email protected]/
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