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Old April 11th 04, 04:53 PM
Cecil Moore
 
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N2EY wrote:
Dipole dimensions:
Innermost section (not a stub; shorted at both ends): 8'
Next section (stub; open at inner end): 6' 11" [resonant at 10 meters?]
Next section (stub, open at inner end): 13' 10" [resonant at 20 meters?]
Outermost section (stub, open at inner end): 27' 5" [resonant at 40 meters?]


Is this just an attempt at a trapped antenna using stubs for traps?
It doesn't seem to model out to be very functional. The outermost
stub on 40m needs to have a very high impedance, i.e. 1/4WL shorted.
That works well to resonate the vertical on 40m, but 1/8WL on 80m
makes the antenna resonant at 3 MHz according to EZNEC.
--
73, Cecil, W5DXP



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