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Old April 7th 06, 04:22 AM posted to rec.radio.amateur.antenna
Yuri Blanarovich
 
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Default Current across the antenna loading coil - from scratch

W8JI and other unbelievers that antenna and loading coils can not be
expressed in electrical degrees, can find another example in ON4UN's Low
Band DXing book, 4th edition, page 9-47, Fig 9-58, showing loaded vertical
with mast being 40 deg. 59.6 ft. long, loading coil of 144 uH taking
(replacing radiator of) 40 deg and whip of 10 deg and 14.9 ft long, for
overall 90 deg electrical and quarter wave resonant system.
Soooo, to anyone outside of "equal current worshippers" it is obvious that
coil is replacing 40 deg worth of radiator and it would drop equivalent
amount of current across the coil that corresponds to the length of radiator
that coil replaces, because rest of the "straight" radiator FORCES IT TO
DO - because of standing wave and current.

Such a heresy!
Theeere is your sign!

Yuri, K3BU/m


 
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