"billkennedy3" wrote in
message .. .

Is a "V" array a good idea for directional gain? (My space available
make the "V" very tempting)

The V antenna may be made at any angle up to a 90d right angle, but the
optimum for omnidirectional reception (which you want for VOR) would put the
angle of the V somewhere around 120-140d. The V antenna will have SLIGHTLY
better reception in the apex of the V -- that is, this V antenna will pick
up slightly better towards the top of the page than the bottom, but will
have no effect for all practical purposes.





How long should the elements be for optimum reception of a 109MHz
signal?

Why 109? The center of the localizer band is 110 and the center of the
whole nav band is 113. However, to answer your question directly, about
23.5" for each element. If you wanna split hairs l = 2575 / f where l is
the length of an element and f is the frequency in MHz. In this case, the
number works out to 23.62, but this is also like building a house with a
micrometer.

How fat?


We've found that 1/2 " copper tape is about the best compromise between
bandwidth and work-ability.


Jim