"James Barrett" wrote in message
. ..
Can a 20 meter yagi be tuned down to 10 meters? can a 40 meter yagi be
tuned down to 10?


Don't mess up a good 20-meter beam.
And that 40-meter yagi must be huge! If its working, I wouldn't want to mess
with it, either.
You can make a 10-meter beam easy enough.
I could replace my pickup's hemi with a lawn-mower engine, but then how
would I cut the grass?