Thread: Dual-Z0 Stubs
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Old May 8th 09, 12:31 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
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Default Dual-Z0 Stubs

Tom Donaly wrote:
Cecil's using the old "You cain't prove it ain't" argument.


I have presented my arguments. Nobody has refuted
them technically. All the objections have been ad
hominem or based on false premises.

A 75m Texas Bugcatcher coil meets the Corum test
for a helical sheath. That test is on page 4 of:

http://www.ttr.com/TELSIKS2001-MASTER-1.pdf

"... is valid for helices with 5ND^2/WLo 1
where N is the TPI and D is the diameter."

That figure is 0.244 1 for the 75m Texas Bug
Catcher used on 4 MHz.

5*4*6^2/2952 = 0.244

So all you guys have to do to shoot down my analysis
is to prove that 0.244 is not less than one.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com