Yuri Blanarovich wrote:
BTW Tom used EZnec to "prove" that current across the loading coil in the
loaded antenna is the same at both ends. When you replace that coil with same
inductance value loading stub, you find that current is (significantly)
different at the ends of the stub.
Have you corrected him how to use EZnec properly to model lumped inductance and
get results that jive with reality? Cecil showed and explained the stuff. In
his presentation at Dayton, Tom still propagated that nonsense.

I'm going to add this to my web page. It's a mobile antenna with an 4'
bottom section, a loading coil, and an 4' whip. The loading coil is
made up of EZNEC segments with an octal shape. It is 4.5 turns in 0.9
foot length and one foot diameter. The feedpoint current is 1 amp.
The current in the first segment at the bottom of the coil is
0.9956 amps. The current in the last segment at the top of the the
coil is 0.5326 amps. The number of electrical degrees that the coil
occupies is about 50 degrees, more than half of the 90 degree antenna.
--
73, Cecil http://www.qsl.net/w5dxp



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