If you don't mind having a little less gain than is ultimately possible
by using an antenna modeling program, the NBS (Nation Bureau of
Standards) designs are pretty straight-forward. For a 6 element Yagi,
here is element lengths and spacings for building with insulated
elements (insulated from the boom, so I would use wood, 1" X 2" X 8.5')

Lengths:
Reflector = 3' 4"
Driven = 3' 2-3/16"
Dir 1 = 3' 7/8"
Dir 2 = 3' 7/16"
Dir 3 = 3' 7/16"
Dir 4 = 3' 7/8"

Spacing:
Ref to Driven = (187.2/Fc) X 12
Spacing between all other elements = (234/Fc) X 12
where Fc is the design center frequency in MHz, ie 146 for the center of
the FM portion). The spacing calculations give the answer in inches.

Then you need to feed it. I use delta matches. Are you good at
qrz.com? If so I can send you a drawing of the feed to get you started
(but you would need an SWR meter that works at 2M to get it adjusted).

Scott
N0EDV

Merlin-7 KI4ILB wrote:
What design plans would you use?

Thanks
joe

"Scott" wrote in message
.. .

Depends what you want. Are you going to use a small Yagi for FM work or
a long boom Yagi for SSB/CW? If you want something fairly simple, a
homemade 6 or 8 element Yagi is fairly simple. Otherwise, for some
serious weak signal work, the K1FO designs are quite commonly used.
Directive Systems sell them...

http://www.directivesystems.com/antenna4.htm

Hope that helps!

Scott
N0EDV