Imax-2000?
 

Anybody have one? I am going to stick it in a tree. There are tuning rings on
it. Anyone ever tune one of these? I am going at it alone when I install it. I
am going to use a climbing tree stand, and it will be impossible to tune it when
it is hung. If I tune it on the ground, will the SWR be drastically affected if
it is a couple feet off the ground, as opposed to when it is about 30 feet up?

Vinnie S.

On Sat, 26 Mar 2005 21:22:09 -0500, Vinnie S.
wrote in :

Anybody have one? I am going to stick it in a tree. There are tuning rings on
it. Anyone ever tune one of these? I am going at it alone when I install it. I
am going to use a climbing tree stand, and it will be impossible to tune it when
it is hung. If I tune it on the ground, will the SWR be drastically affected if
it is a couple feet off the ground, as opposed to when it is about 30 feet up?


Can't say specifically for the 2000. For a 1/2-wave vertical dipole,
the input impedance is highest (around 100 ohms) when the feedpoint is
1/4-wave above the ground (as low as it can go without digging a
hole). It is lowest (about 70 ohms) when the feedpoint is 1/2-wave
above ground. As you get higher the input impedance levels off to
slightly above the average impedance of a horizontal dipole (the
latter being about 73 ohms). Turning the antenna horizontally won't
work because it will then behave like a horizontal dipole, the input
impedance dropping towards zero as you get closer to the ground.

IOW, if you tune it on the ground, the SWR -will- change after you get
it up the tree -- and that's disregarding any effect the tree will
have on it's impedance.







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"Vinnie S." wrote in message
...
Anybody have one? I am going to stick it in a tree. There are tuning rings
on
it. Anyone ever tune one of these? I am going at it alone when I install
it. I
am going to use a climbing tree stand, and it will be impossible to tune
it when
it is hung. If I tune it on the ground, will the SWR be drastically
affected if
it is a couple feet off the ground, as opposed to when it is about 30 feet
up?

Vinnie S.

I run an Army BigStick in a 110' Redwood. We sorta tuned
it on the mast with the coax stretched all the way out. Now it was a good
match when it was down, it went up just a little
when all the way up, nut not enough to worry about. I also
ran a separate ground wire down from the mounting brackets.

Landshark


--
__
o /' )
/' ( ,
__/' ) .' `;
o _.-~~~~' ``---..__ .' ;
_.--' b) LANDSHARK ``--...____. .'
( _. )). `-._
`\|\|\|\|)-.....___.- `-. __...--'-.'.
`---......____...---`.___.'----... .' `.;
`-` `

On Sun, 27 Mar 2005 19:20:33 GMT, "Landshark" wrote:


"Vinnie S." wrote in message
.. .
Anybody have one? I am going to stick it in a tree. There are tuning rings
on
it. Anyone ever tune one of these? I am going at it alone when I install
it. I
am going to use a climbing tree stand, and it will be impossible to tune
it when
it is hung. If I tune it on the ground, will the SWR be drastically
affected if
it is a couple feet off the ground, as opposed to when it is about 30 feet
up?

Vinnie S.

I run an Army BigStick in a 110' Redwood. We sorta tuned
it on the mast with the coax stretched all the way out. Now it was a good
match when it was down, it went up just a little
when all the way up, nut not enough to worry about. I also
ran a separate ground wire down from the mounting brackets.


Good enough. How high is it? Is it all the way up?

Vinnie S.

"Vinnie S." wrote in message
...
On Sun, 27 Mar 2005 19:20:33 GMT, "Landshark"
wrote:


"Vinnie S." wrote in message
. ..
Anybody have one? I am going to stick it in a tree. There are tuning
rings
on
it. Anyone ever tune one of these? I am going at it alone when I install
it. I
am going to use a climbing tree stand, and it will be impossible to tune
it when
it is hung. If I tune it on the ground, will the SWR be drastically
affected if
it is a couple feet off the ground, as opposed to when it is about 30
feet
up?

Vinnie S.

I run an Army BigStick in a 110' Redwood. We sorta tuned
it on the mast with the coax stretched all the way out. Now it was a good
match when it was down, it went up just a little
when all the way up, nut not enough to worry about. I also
ran a separate ground wire down from the mounting brackets.


Good enough. How high is it? Is it all the way up?

Vinnie S.

Tree is 110', antenna on a 10' mast, about 5' above the top.

Landshark


--
Real heroes are men who fall and fail
and are flawed, but win out in the end
because they've stayed true to their
ideals and beliefs and commitments.

to bad, the ENTIRE antenna should be out the tree...
I am not saying this to be funny, but you are not getting out
anyway near what you would if it was.

On Mon, 28 Mar 2005 03:12:03 GMT, "Landshark" wrote:



Tree is 110', antenna on a 10' mast, about 5' above the top.


How did you get it up that high? Did you pay someone?

Vinnie S.

"Vinnie S." wrote in message
...
On Mon, 28 Mar 2005 03:12:03 GMT, "Landshark"
wrote:



Tree is 110', antenna on a 10' mast, about 5' above the top.


How did you get it up that high? Did you pay someone?

Vinnie S.

A good friend that's very skilled at climbing trees (Yes,
I gave him so cash for that great task).

Landshark


--
Hard things are put in our way,
not to stop us, but to call out our
courage and strength.

"George Kinzer" wrote in message
...
to bad, the ENTIRE antenna should be out the tree...
I am not saying this to be funny, but you are not getting out
anyway near what you would if it was.

Umh, maybe I wasn't to clear, sorry. The mast is approx
5' give or take above the top, So most of the antenna
is well above the tree and works just fine with an
SWR of 1:3:1

Landshark


--
Treat people as if they were what
they ought to be and you will help
them become what they are capable
of becoming.

"itoldyouiamnotiamnotgeorge"
wrote in message ...
"Landshark" wrote in news:0kU1e.2430$FN4.273
@newssvr21.news.prodigy.com:


"Vinnie S." wrote in message
...
On Mon, 28 Mar 2005 03:12:03 GMT, "Landshark"
wrote:



Tree is 110', antenna on a 10' mast, about 5' above the top.


How did you get it up that high? Did you pay someone?

Vinnie S.

No he had him dress in transexual garb as he climbed the long pole.

Childish newsgroup assclown.