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Richard,
If your current is different at the ends of the coil, you're an angel. The question that leaps to mind is how are you going to replicate the data if you were so ignorant of the original details? Even more, it would further all discussion for you to offer a COMPLETE specification of what you are doing (or going to do), rather than an informal ramble around the garden with a camera. The point of the original argument was: is the current the same or different at the ends of the typical coil in loaded antenna. I will reiterate the exercise: I knew it was different from my "heat tests with Hustler", W8JI countered "you dummy, it can't be" (in a nutshell :-), ON4UN showed graphically how, W9UCW chimed in "it is, I measured it, here is some data", Cecil theorized it, W8JI chorus "calculated" it can't be. My point is that I argued that current is different, not how precisely I can calculate or offer calculated "proof", the first order was to convince unbelievers that there is a difference and let them loose to figure out why (Cecil shined light on it) and then to properly apply formulas and figures so we can model it. So when I say that I want to do MY measurements, I am not after exactly duplicating W9UCW measurements and test, I just want to pick, first my mobile antenna (practical situation) and then similar setup what Barry used - nice 60 radial ground plane and various loaded radiators and see what (formulas, software) comes close to reality. We are already seeing some path, and with sliding current probe I believe I can get more data along the radiators and we can see how does it jive with Barry's and with calculations and modeling. So again, I am not after replicating Barry's laboratory. If what we are saying is true, than it doesn't matter how fat the coil is, where it is within the limits, more data from various situations will help us to correlate the procedures. My goal was to convince unbelievers (and as we can see, there are plenty), well, to show that current in a typical loading coil's ends IS DIFFERENT (it is up them to believe it or not). This wasn't on the level of scientific conference paper, but more like a street fight - who is right and why are you ridiculing me (us) if I am (we are) right. Now roll your slide rule blades out and lets do the stage two, fine tune the "theory" and put some good numbers on IT. So she's round after all? Should we change thread name now? Yuri, K3BU.us |
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