[ICOM] Off topic

[David J. Ring, Jr.]

A suggestion?  I agree with Alex, my friend the r.f. engineer, but I would 
also add a trap dipole supported half way up the tower.  That way you would 
have high angle radiation when needed - like local work.]

Stations designed for communications world-wide usually have:

Gain antennas high up - like your quad!
Low (1/4 wavelength high) horizontal antennas.
Vertical polarizied antennas (either up in the air, or ground mounted).

Now military stations add NVIS antennas which are just about 10 feet off the 
ground to permit 100% coverage on frequencies in the 3-5 Mhz range to other 
locations up to 350 miles away.

My ICOM eats DX with a high beam.  That's why I paid money for the tower!!!

73

DR

----- Original Message ----- 
From: "Alex Eban" <alexeban at bezeqint.net>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Sunday, April 17, 2005 2:42 PM
Subject: RE: [ICOM] Off topic


....don't touch it! The higher the better! A Quad is a current antenna: a
such it suffers less from ground proximity than other antennas.
It would be sheer waste to loose 25 feet of height just for the heck of it!
Use your common sense, don't take everything you hear as gospel!! It's true
that in some particular location a certain height apparently showed an
improvement. But, think of it, it's something not physical! Keep using your
antenna a is for a while, don't jump to conclusions prematurely. When you'll
be sure that you know your setup, then start experimenting. For the time
being stick to proven theory. Learn you new toy and enjoy it.
Alex 4Z5KS

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----
Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
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