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Cecil,
I was going to drop this discussion, but I will respond to your request to share physics knowledge. 1) I will repeat. E-fields, H-fields, voltages, and currents are all related through some very profound equations. However, shout THEY ARE NOT INTERCHANGEABLE. /shout This is not just a matter of semantics. These entities have different physical meanings, different units, and different dimensionalities. 2) I offered a physics-based explanation for your proposed "current drop" in the 440 MHz RG-58 example a few days ago. Did you not read that message before responding to it? 3) A one foot long section of wire and a one foot long section of coil exhibit similar phase shifts, according to both the theory and the reported data. What is not correct is the assertion that the coil exhibits a phase shift consistent with, for example, 20 feet of wire used to make the coil. The notion that a coil replaces some sizable portion of the total phase shift in an antenna has been shown to be incorrect. Experiments reported by Roy and Tom R. convincingly demonstrate the phase shift behavior of coils. 73, Gene W4SZ Cecil Moore wrote: [snip] Please pick one item of physics with which you disagree with me and let's discuss it in a gentlemanly fashion. There's some pretty savvy people on this newsgroup who agree with me. Perhaps, the argument is only a semantics problem, like the definition of "drop" and "flow". It's really hard to see how an E-field can drop but not flow and an H-field can flow but not drop. Pick one simple topic upon which you think you and I disagree. So far, you have posted nothing except ad hominem attacks. That's not a good way to impress people and win technical arguments. I think you are a better person than that. Here's a topic if you can't think of one. How can a one foot long section of transmission line exhibit a phase shift if a one foot long coil doesn't? |
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