Topband: Shunt fed twr

Herbert Schoenbohm herbs at surfvi.com
Thu May 31 08:43:59 EDT 2007


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 I had a 20M5 and converted it over to a 4 element hair pin store bought
match on a 42 ft boom. Do I need a 1:1 balun, the hair pin requires a
balanced feed or can I get away with "wide spacing" and an input impedance
of @ 40 ohms? If I do use a 5K 1:1 balun what is the chance that I will/can
destroy it?

Thanks for any input...Ron  KB7ZR


If you are worried about roasting baluns then IMHO the coil of coax choke
recommended by Hy-Gain for all their balanced feed beams antennas is
probably a "don't worry be happy" solution ...and with no additional cost
either.

Herb Schoenbohm, KV4FZ
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