"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.