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'Doc, are you telling us that CB guys that always claim an end fed 1/4 wave will show 35 oms of impedance are closer to the facts than what the licensed method of moments algorithms used with Eznec can produce even if the model was not produced and certified by LB Cebik?

 

You and I may accept the fact that this reference probably is a generalization, and that it is an accepted idea to be about 1/2 the value as stated for a 1/2 wave dipole. But I've never heard anybody that makes such a claim for any 1/4 wave ground plane say it has a 35 ohm impedance and that the value is "generalized." You just made that up in order to support an argument.

 

I'm not even making a claim that my Eznec models are perfect, but I think they can show the condition of an end fed 1/4 wave radiator a little closer to the facts...than some claims we often hear from CBr's.

 

Knowing you 'Doc, I would image you to be among the very first to Johnny on the Spot asking some CB'r where he got the idea that the feed point impedance as the bottom of a 1/4 wave antenna was in fact 35 ohms.

 

I'm just trying to make a similar point to what you did with in some other post, I think maybe even in this same thread: when you asked the poster, "...how do you determine resonance?", and after the guy tried to explain by saying in response, "...when the value of reactance equals Zero." I kinda' got your point on that one and did not raise some meaningless comment to confuse what you were trying to do.

 

Just to show how close such a claim might be noted by Eznec in another situation on this subject, and using the center fed dipole...here is a model at the same height of 32' feet, and one at 18' to compare as being fairly accurate with what theory reports to us about the feed point impedance for a center fed dipole at a couple of different heights. We don't see any need here for any "generalization" idea, do we?

 

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Do I think anything we do here will change any body's mind about the subject I tried to raise...not on your life 'Doc. CBr's hardly ever change their minds about anything they have in their imagination, and that too is a fact... that time and experience has taught me.