I'm building a 4 segment + whip coaxial collinear antenna for
2.441 ghz. The coax I'm using is RG58 with a VF of .66 but
I was told by some of you that the VF will vary on this antenna.

What I need to know is which way and how much should I
adjust the element lengths to compensate?

Also, I followed the instructions on this webpage to the letter:

http://wireless.gumph.org/content/4/...s-antenna.html

But instead of getting sector lengths of 40.5mm, I got 39mm
somehow. Have I created a waste of time because of that?

One last question - with HF antennas, if they are close to other
objects they sometimes need to be shortened slightly to work.
I plan on mounting these antennas on the back of my ThinkPad's
display so maybe they will work being 1.5mm short per sector?

God I love this stuff!
--
73's de Ken KG0WX - Kadiddlehopper #11808,
Flying Pigs #-1055, Grid EM17io,
Elecraft K2 #4913, XG2, 4SQRP Tenna Dipper,
Heath GD-1B, MP-1(X)antenna & HLA-150 amp.