I will soon be going up with a Hy-Gain TH3. This 3 element beam is now 17
feet above the ground on the side of the tower. Just put it there to check
the SWR. The beam has directions for either low,mid or the high end of the
band. I have is set for the mid position. As of now the SWR curve for all
three bands are lower than the lowest frequency swr chart shows. Can I
expect the SWR curve to go higher in frequency as I go from 17 feet to the
final height of about 58 feet ?

I am using a current balun (beads on the coax type) the Wire Man sells if
this makes any differance.

On Sun, 01 Oct 2006 21:51:34 GMT, "Ralph Mowery"
wrote:

Can I
expect the SWR curve to go higher in frequency as I go from 17 feet to the
final height of about 58 feet ?

Hi Ralph,

Such questions always deserve answers by degree. Yes, sort of. Let's
say you stand to observe less difference from 17 to 58 feet than from
3 feet to 17 feet.

Try the short cut of tuning the antenna pointing straight up (at
whatever short height).

Your BalUn is probably OK.

73's
Richard Clark, KB7QHC

I vote with RIchard...Standing the beam straight up on wood saw horses
and tuning it has worked for many, many times...

denny / k8do