RST Engineering wrote:
(By the way, you are operating close enough to the third harmonic of 144 on
440 that the antenna will perform quite well on both frequencies.)

It will even perform well as a satellite antenna on
440. EZNEC says it has a TOA of about 45 degrees.
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
RST Engineering wrote:
(By the way, you are operating close enough to the third harmonic of
144 on 440 that the antenna will perform quite well on both frequencies.)

It will even perform well as a satellite antenna on
440. EZNEC says it has a TOA of about 45 degrees.

Hmmm. In some cases, would be nice to keep more of that signal terrestrial.

Regards,
JS

That's why you bend the radials down at a 45. It bends the pattern right
along with it.

Jim



"John Smith I" wrote in message
...


Hmmm. In some cases, would be nice to keep more of that signal
terrestrial.

Regards,
JS

John Smith I wrote:
Cecil Moore wrote:
RST Engineering wrote:
(By the way, you are operating close enough to the third harmonic of
144 on 440 that the antenna will perform quite well on both
frequencies.)

It will even perform well as a satellite antenna on
440. EZNEC says it has a TOA of about 45 degrees.

Hmmm. In some cases, would be nice to keep more of that signal
terrestrial.

That's the subtle point I was trying to make. To keep
the TOA low, the antenna should not exceed 5/8 WL.
6/8 WL raises the TOA. That's not optimum for hitting
repeaters unless they are on very high, very close
mountains.
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
...
That's the subtle point I was trying to make. To keep
the TOA low, the antenna should not exceed 5/8 WL.
6/8 WL raises the TOA. That's not optimum for hitting
repeaters unless they are on very high, very close
mountains.

Cecil:

OK. No problem, subtle is all yours ...

But, remember, I get sarcastic and blunt! evil grin

Regards,
JS

"Cecil Moore" wrote in message
t...
John Smith I wrote:
Cecil Moore wrote:
RST Engineering wrote:
(By the way, you are operating close enough to the third harmonic of
144 on 440 that the antenna will perform quite well on both
frequencies.)

It will even perform well as a satellite antenna on
440. EZNEC says it has a TOA of about 45 degrees.

Hmmm. In some cases, would be nice to keep more of that signal
terrestrial.

That's the subtle point I was trying to make. To keep
the TOA low, the antenna should not exceed 5/8 WL.
6/8 WL raises the TOA. That's not optimum for hitting
repeaters unless they are on very high, very close
mountains.
--
73, Cecil http://www.w5dxp.com

Yup, the peak of the main lobe is elevated. ... but my 144 copper pipe
j-pole does put sufficient 440 energy toward the horizon that I am often
able to hit a repeater more than 70 miles away (Santiago Peak in Orange
County CA from southern San Diego County). Power out is around 4 watts from
a Yaesu FT-530.

Just now I tried Santiago and didn't hear back, so I tried 449.08 on Palomar
Mountain, 45 miles away, with a half watt and bought it up. Antenna is only
20 ft above ground; house is around 510 ft above sea level on a small rise.

Sal M. Onella wrote:
Yup, the peak of the main lobe is elevated. ... but my 144 copper pipe
j-pole does put sufficient 440 energy toward the horizon that I am often
able to hit a repeater more than 70 miles away (Santiago Peak in Orange
County CA from southern San Diego County).

Yep, paraphrasing Roy:
All antennas emit energy at all angles.

I just don't like to waste 10m/VHF/UHF energy
at high angles.
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
...
I just don't like to waste 10m/VHF/UHF energy
at high angles.

Cecil:

And, neither do I. (well, 11m band--sometimes. Just for medicinal
purposes, mind you. evil grin)

I have pursued the "Ultimate 10M Antenna", and a yaga or quad is/are
great. However, I like a omni to listen for traffic on. And, when
there are high winds, I like to point those directional antennas into
the wind. (have stripped too many rotor gears and suffered too much
damage in past decades)

Like you point out, and I concur, the perfect Omni which throws no rf to
the sky is elusive ... strange too, we can do it with light.

I have gotten used to the "RF GODS" extracting their portion of my rf
field to their realms in the sky (sometimes they toss a bit back to
australia though, I like the women there )

Regards,
JS

And I did not mean to imply that you couldn't use brazing (not welding) rod,
which is nothing but brass and a little more to make the elements. IT
certainly makes a STIFFER antenna, but copper wire is a lot easier to work
with.

Jim



"Cecil Moore" wrote in message
et...
RST Engineering wrote:
(By the way, you are operating close enough to the third harmonic of 144
on 440 that the antenna will perform quite well on both frequencies.)

It will even perform well as a satellite antenna on
440. EZNEC says it has a TOA of about 45 degrees.
--
73, Cecil http://www.w5dxp.com