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Old September 30th 06, 12:20 AM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Jul 2006
Posts: 303
Default First homebrew antenna and a question





I have explained to you several times that the length of the radiator
and the open wire section act together to influence the impedance
presented at the coax to open wire junction.

I asked if you had measured both elements and if you had considered
the velocity factor (for your actual line) in those measurements, but
you did not reply,





It can't be all that hard, can it.



PS: I noted your throw away comment that time is of the essence,


Owen,

I appreciate your advice.

Just glad I'm not your neighbor.
I'm certainly not your errant student.

There are some elmers out there and then there are responses as above.

If you feel it is beneath you to respond, then by all means don't waste
your time responding. This is all too familiar.

For the record, I did not have deviating from G5RV specs as part of my
"design" and, as a first attempt, I wanted to avoid higher order issues
such as the arcane bickering about water on a transmission line.

Frankly, from a newbie perspective, so much controversy over such issues
calls into question any science that is behind so many assertions and
counter-assertions. If so much depends upon water on the line, then how
important can velocity factor be? This is said only partially in jest.

In my mind MIS-application of science is far worse than its non-application.

I think a good engineer would agree with me. Would you?

John
AB8O
not an engineer

PS
Cecil, your advice is more on the mark for me and I appreciate it. I'll
work on velocity factor and EZNEC for the next project...if time allows.
I'm proud to say that this is my hobby but it's not my career.

 
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