Don't think so.
IIRC the OP said the tubing diameter went from 4" down to 1". If you modeled in
NEC with stepped-diameter correction to get an equivalent uniform length and
then took a percentage before changing back to tapered, you might get there.
But if you can model in NEC, why not just work out the change there?
Wes N7WS
On 9/13/2017 10:58 AM, Charles Morrison wrote:
Not length to diameter, It is independent of diameter.
It is a simple method to determine a difference of length as a ratio based
on frequency.
On Wed, Sep 13, 2017 at 11:41 AM, V. Sciucka <vytenis.sciucka@gmail.com>
wrote:
Thanks Gary K9RX and Charlie N1RR, 2nd question is clear now.
Charlie also gave formula for length 246/f(mhz) = element (feet) which I
assume includes length to diameter ratio or this ratio is not so much
important.
--------------------
Vytenis
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