DB, thanks for the info, but I missed a couple of key words in this presentation, words that have been suggested to be essential if we'll see 35 ohms at the feed point for a resonant 1/4 wave.
I don't mean to be rude here, but on your post #28, you suggested the idea using a perfect ground plane with no losses. I did just that, without knowing what to expect, and I posted those results...and we saw no change. That idea went down without a whimper, simply because it did not fit the group thinking.
I can't explain anything else in that regard, but I hear you guys that are positive with your ideas, ideas that you can't or won't support until you are almost challenged.
I'm just giving my opinion here, and if I'm wrong...so be it. Is the truth of a matter not important anymore? I think pride is the ruler around here and if I am convinced by any of you guys arguments...then I benefit.
You also confirmed the idea that a perfect ground plane was essential in order for a 1/4 wave to show a 35 ohms feed point impedance when resonant. My point is that I don't test over a perfect ground plane, and I claim here and now...that no body else does either. So if the idea has to be tested over a perfect ground plane, how in this world would we ever see 35 ohms in this case.
I can't count how many times I've received complaints about producing Free Space models as having some value...and what I hear in return is Free Space models are not real and don't mean nothing. You guys are claiming a perfect ground plane idea here, and to me this is the same O, same O and maybe even worse...since all you guys should know better.
I see what you believe to be true, and for years I believed that too, just like it was cast in granite. However, when I tested my 102" whips with several 102" whips as a suitable ground plane...I didn't see the 35 ohms of resistance I was promised. I mostly saw on my VA1 analyzer less than 35 ohms unless I slanted the radials down some.
I ask you, Ron, and CK, did you guys miss that when you tested 1/4 wave radiators with a suitable ground plane, or did you stop because you didn't have a perfect ground plane available?
What I saw was a lot of values that varied widely some times, but hardly ever was 35 ohms. If I had seen that I would have stopped what I was doing...because for years I was told that is where you stop with a 1/4 radiator.
Did any of you read my link I posted last night where Cebik answered in support of what I've claimed here? I didn't read it all, but I don't recall Cebik making any comments about doing his test over a perfect ground plane. It looked to me like he was doing some regular impedance work with an analyzer, but I could be wrong.
Go to Cebik's table #7, at this link: The 5/8-Wavelength Mystique and you will see his 146 mhz data for the impedance of a 1/4 wave, and it is clear the impedance is 26 ohms with very little reactance, and I don't think we'll read this testing was done over a perfect ground. But, if I'm wrong on that score...I will apologize to everyone here.
