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.).

Also, bear in mind that a yagi is a directional array; you'll have to point
it at the transmitter you're trying to see. Ultimately, your 3-el guinea
pig antenna will outperform the bowties, especially since they have no
reflector. In the long run, you will probably be very happy with a
commercial UHF yagi...

Mike KI6PR
El Rancho R.F., Ca

"cme" wrote
I've read all the ham sites and I was hoping someone could enlight me.
Some
of the questions may seem dumb, but i figure there is no dumb question
unless you dont ask it.
I'm making a yagi antenna for channel 57,
I'm thinking of using 14 copper wire for dipole element and the 14 gage
wire
for reflector and director elements, just ot see if I can get it to work
better. actually thinking of use the channel 69 to make the antenna to cut
the peices of antenna.
Will I be able to pull 57 easier. Presently have a 4 elemnet bowtie
Delhi
uhf antenna. want to play with a yagi before buying one, to see if it
works
better, with out dropping the cash. would stacking another one on top of
the 4 bowtie on top of the present one give me anymore gain???? theres no
refector on mine. I'm half way in between 2 areas buffalo and toronto
transmission towers.
Not being a ham I know you have to tune the antenna for impediance I
guess.
Can I use a 300 to 75 ohm transformer or how would I find the impediance
of
the antenna If I made it from 14 gage house wire.
What if I use 300 twin antenna wire for the active element and 14 gage
wire
for the refectors and directors?

Are the reflectors and directors NOT connected to the active element.

I would appreciate any good sites on building your own TV antenna or any
info. in this area.
talked to alot of antenna tv shops and I get no help, so I decided to trry
and build a experimntal unit before droping the cash on another uhf
antenna.