In article ,
"Ralph Mowery" wrote:

"Mikey" wrote in message
...
As an experiment, if you're looking for something for both channels 57 and
69, cut your yagi for the frequency right between them, and it should
cover
both. #14 wire is relatively flimsy - are you using this indoors? If
not,
you will want to tape it down to a frame of some type (wood, pvc, etc.).


Simple yagi antennas are relative narrow band antennas. They are not too
effective for that broad of a frequency range. Also for many they are more
like a low pass filter in that at frequencies below the designed one the
pattern is not too bad but going above the designed frequency the pattern
falls apart very rapidly. If anything design the antenna for the highest
frequency used.




This is not going to work. Yagi's are narrow band to begin with, lucky
if you can get 6 mhz bandwidth. Using thin #14 wire makes it impossible.

If you want to build this antenna, make it out of 1/2" copper water
pipe. Cut the reflector to channel 69; the directors and dipole to
channel 58.

Putting a low noise amplifier at the antenna is a good idea. But good
ones cost.

I missed the setup to your question, are both channels in the same
direction?