One who Art calls Doctor writes:

The reason I can't agree with the 5% thing is that I haven't
measured it, not that the number is correct or not. There is
a difference in length when using insulated/noninsulated wire,
I just can't say exactly what that difference is.


I described what it is exactly as I measured it using #12 wire on a 10m 3
element quad. Calculated it with (cheap) EZNEC, I put it up, it ended up smack
in CB band. Calculated the offset, for the red insulation I was using (helps to
emit red hot electrons :-) it was 5%. Adjusted the length and bingo, right
where I wanted it.

Expensive EZNEC using NEC4 can include insulation in calculations and provides
more accurate results and it can be used to show the exact, more-less
difference due to plastic coated wires (according to Roy d'Eznec).

So if you didn't measure it yet, everyone is going to call me a liar? :-)
Maybe I should start taking bets? Haven't you guys learned to put a little
trust in my 45 years of haming, beating contest records and generaly honest and
being mostly right?


Yuri