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Fw: [TowerTalk] Antenna Heights and EZNEC

To: <towertalk@contesting.com>
Subject: Fw: [TowerTalk] Antenna Heights and EZNEC
From: gbright@bellsouth.net (Grant Bright, Ph.D.)
Date: Sat, 2 Feb 2002 23:15:32 -0500

----- Original Message -----
From: "Grant Bright, Ph.D." <gbright@bellsouth.net>
To: "Guy Olinger, K2AV" <k2av@contesting.com>
Sent: Saturday, February 02, 2002 11:14 PM
Subject: Re: [TowerTalk] Antenna Heights and EZNEC


> Gosh, how's a guy to know, "It has already been done?" Wading through the
> reams archives of "It works this way and that way," it is too bad
somebody,
> such as yourself, did not point out where to go in the archives to find
> these gems. If the "facts" are not compiled into a useable form whether
> that is a spreadsheet or another database, it needs to be put into an
> anthology.
>
> That is why all research libraries have extensive computer bases...to
find
> significant or obscure facts.
>
> Your anti-academic acquaintance obviously has had a bad experience with
> education, and that is regretful both for him and the University.
Speaking
> of education, I have learned one thing in all these years of education,
and
> that is....I am still a student...there is so much to know, so much more
to
> learn, and so much more we don't even know yet, that we need to know in
> order to find better answers to the questions we deal with on a daily
> basis.
>
> We spend billions and billions exploring outer space...I think we need to
> spend a few billion on learning about the inner space.
>
> And your acquaintance needs to learn the true meaning of Ph.D.....it
is...
> Pilled Higher and Deeper....but on occasion, it is also Post Hole Digger!
>
> Best regards from a student,
>
> Grant
> W4OJC
>
>
> ----- Original Message -----
> From: "Guy Olinger, K2AV" <k2av@contesting.com>
> To: "Grant Bright, Ph.D." <gbright@bellsouth.net>
> Sent: Saturday, February 02, 2002 10:51 PM
> Subject: Re: [TowerTalk] Antenna Heights and EZNEC
>
>
> > Already been done, and the results, though not tabulated in some
> > spreadsheet, tell the story. They're just not all attached to the
> > prior email. They are in the archives. And the gist of the bunch has
> > been related quite some number of times.
> >
> > This is NOT the first time, or the most complete TowerTalk rendition
> > for this particular question.
> >
> > 73,
> >
> > PS, I have this anti-academic acquaintance that says the way one
> > pronounces Ph.D. is phud.
> >
> > ----- Original Message -----
> > From: "Grant Bright, Ph.D." <gbright@bellsouth.net>
> > To: <RLVZ@aol.com>; <towertalk@contesting.com>
> > Sent: Saturday, February 02, 2002 8:21 PM
> > Subject: Re: [TowerTalk] Antenna Heights and EZNEC
> >
> >
> >
> > I like these questions....I am a "show me the real data" kinda guy.
> >
> > This debate reminds me of the story from Medieval times when a group
> > of
> > Monks debated for a couple of years how many teeth a young horse had.
> > Some
> > argued the number was 40, other 42. A young Monk who had only been in
> > the
> > Monastery for a few years had a epiphany when he asked the question,
> > "Since
> > we do not really know how many teeth a young horse has, let us go
> > forth,
> > find a young horse and count his teeth."
> >
> > The young Monk was defrocked for being too worldly.
> >
> > My point: why not put a 10m antenna at 200ft in a area where the HAAT
> > is
> > reasonable, the ground has good reflectivity and take the
> > measurements?
> >
> > Or why don't we go and make some measurements at the stations of some
> > of
> > the excellent stations mentioned here previously. In other words,
> > answer
> > these well versed question of RLVZ? This would surely make a ground
> > breaking article from which all could read, study, and benefit.
> >
> > 73s,
> >
> > Grant
> > W4OJC
> >
> > ----- Original Message -----
> > From: <RLVZ@aol.com>
> > To: <towertalk@contesting.com>
> > Sent: Saturday, February 02, 2002 10:28 AM
> > Subject: [TowerTalk] Antenna Heights and EZNEC
> >
> >
> > >
> > > A lot higher than 4-6 wavelengths.  I ran a 10m yagi in EZNEC at 200
> > feet
> > > > above ground, and both the deep nulls and reflection gain were
> > still
> > fully
> > > > evident.
> > >
> > > QUESTION:  YES- EZNEC GIVES US A GENERAL IDEA... BETTER THAN
> > NOTHING.
> > BUT
> > > HOW ACCURATE IS IT?  BUT WHEN EZNEC WAS CREATED JUST HOW MANY
> > ANTENNAS
> > DID
> > > THEY TEST?  HOW MANY ANTENNA HEIGHTS DID THEY TEST?  WHAT TYPES OF
> > TERRAIN
> > > DID THEY TEST?  HOW MANY FREQUENCIES DID THEY TEST?
> > >
> > > IN OTHER WORDS, DID THEY HAVE A 10-METER ANTENNA AT 200'?  IF SO,
> > DID
> > THEY
> > > MEASURE LINE-OF-SIGHT AND FIRST AND SECOND HOP SKIP?
> > > IF SO, WHAT HEIGHTS WERE THE RECEIVE ANTENNAS AT?  LOTS AND LOTS OF
> > VARIABLES
> > > HERE... SO HOW ACCURATE IS EZNEC?
> > >
> > >
> > ______________________________________________________________________
> > __
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> > The
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> > > Order online at http://store.eham.net.
> > > --------------------------------------------------------------------
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> > >
> >
> >
> >
> > ______________________________________________________________________
> > __
> > Where do you get ICE bandpass filters & beverage matching boxes?  The
> > same place that pays for the hosting of this list:  The eHam Store.
> > Order online at http://store.eham.net.
> > ----------------------------------------------------------------------
> > -
> >
> > -----
> > FAQ on WWW:               http://www.contesting.com/FAQ/towertalk
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> >
> >
> >
> >
>



________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes?  The
same place that pays for the hosting of this list:  The eHam Store.
Order online at http://store.eham.net.
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