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Old March 20th 05, 05:30 PM
Phaselock Ohms
 
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Default Rotatable Vertical - Honest

See URL:
http://www.vk4dx.net/rot_vert.htm

--
Elementary Ya All
Phaselock Ohms







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Old March 20th 05, 06:25 PM
Harold Burton
 
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"Phaselock Ohms" wrote in message
news:Wqi%d.57075$xt.25979@fed1read07...
See URL:
http://www.vk4dx.net/rot_vert.htm

--
Elementary Ya All
Phaselock Ohms



Either he's wanting to verify the true omni staus of the vertical by
experimentation or (more likely) he's installed a quickie vertical in place
of a busted beam, while he rebuilds the beam. Do you know the fellow well
enough to ask, so we can know for sure which it is?

Harold
KD5SAK


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Old March 20th 05, 07:55 PM
gil
 
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I would guess the latter.

gil

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Old March 21st 05, 03:28 PM
W3JXP
 
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Back in the 70's I saw a CB beam mounted with the boom in the rotor pointing
straight up. I guess he didn't want the mast to the rotor interfering with
the vertical yagi.


--
John Passaneau W3JXP
State College Pa.


"Phaselock Ohms" wrote in message
news:Wqi%d.57075$xt.25979@fed1read07...
See URL:
http://www.vk4dx.net/rot_vert.htm

--
Elementary Ya All
Phaselock Ohms









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Old March 21st 05, 07:37 PM
Bob Bob
 
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A few options here...

- NVIS.or short skip distance use only. A 3 element yagi has what, a 120
degree lobe? I did some experiments a long time ago with a quad on 27MHz
with it pointed up at about 60 degrees. Stations about 300km away were
real good but almost no locals. Have to be a very good ionospheric day
of course.

- Speaking to ET's (of course)

- The whole thing was fed as a phased array or the lengths of the Di/Re
were varied to give a broadside pattern. (Or an experiment with same)

- There were some low flying but stupid Galas in the area (pink & grey
parrots) that along with chewing coax also had a very set flight plan
that the operator was trying to dodge..

One of the funniest things I saw was the expectation that a yagi mounted
real close to the ground or roof was actually going to perform well..
A good example of this is one mounted 6-12" above a rotary clothes line.

Cheers Bob VK2YQA

W3JXP wrote:
Back in the 70's I saw a CB beam mounted with the boom in the rotor pointing
straight up. I guess he didn't want the mast to the rotor interfering with
the vertical yagi.




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Old March 22nd 05, 02:49 AM
Brian Kelly
 
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Phaselock Ohms wrote:
See URL:
http://www.vk4dx.net/rot_vert.htm

--
Elementary Ya All
Phaselock Ohms


Might not be what it looks like.

http://www.computeradio.us/INVert.htm

Brian w3rv

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