On 2/16/2013 10:08 AM, Ralph Mowery wrote:
"Sal"salmonella@food poisoning.org wrote in message
...
I'm building a yagi from the measurement tables the ARRL Antenna Book. I
have the driven element finished and getting a good SWRs with a home-made
gamma match.

I'm going to mount it on a wood 2 X 2 with as many directors as will fit
on an 8 feet boom.

Any advice? (I've already read that a gamma match is a poor choice but it
did work, so we can skip that one. :-)


While not what you want to hear, scrap that idea. Look at the Quagi antenna
and a 10 foot piece of the grey plastic electrical conduit. I built one
from an old handbook design years ago and it worked great. Compaired it to
a comercial Crushcraft 11 element beam and also a 6 element home built one,
all at the top of a 40 foot push up pole, one at a time. I used some
stainless steel welding rods for the directors and some fiberglass sticks
about 1/4 inch in diameter for the quad spreaders from those bicycle flags.




I concur! I disassembled my 2 meter quagi antennas and an the process of
building a 222 MHz quagi from using the parts. I also use 1/8 inch
stainless steel welding rods, because I have a bunch of them!

The 2 meter quagi antennas worked great and I expect the 222 antenna to
work well, also.

Paul, KD7HB