[TowerTalk] ICOM AH-4 Antenna Options...

[Jim W7RY]

I agree!
Nothing puts RF in the shack like a non balanced antenna.

The advantage of no RF in the shack outweighs the advantage of slight gain 
by an OCF antenna. IMHO.

73
Jim W7RY


-----Original Message----- 
From: john at kk9a.com
Sent: Tuesday, June 17, 2014 6:07 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] ICOM AH-4 Antenna Options...

If it were me, I would just use coax fed dipoles. OCF may have some feedline
radiation issues. AC0C has a lot of experience with attic antennas and it
would not hurt to look at his site.
http://www.ac0c.com/main/page_prior_antennas_gen_5_attic_array_generation_5_
_overview.html

John KK9A


To: towertalk at contesting.com
Subject: [TowerTalk] ICOM AH-4 Antenna Options...
From: "Dino Darling" <dino at kx6d.com>
Date: Mon, 16 Jun 2014 22:25:58 -0700
List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>
Greetings!

I will be installing an AH-4, paired with an ICOM 9100, in the attic of
a 4-story condo. My original plan was to set up either a 20M or 40M
dipole, one off of each leg (center and gnd) of the AH-4. Then I
thought, why not experiment with an OCF configuration? Either way, I'm
60' from the earth so grounding the AH-4 would be difficult, if not
impossible.

My question is, what experience do you have using an auto tuner/coupler
and different antenna configurations (dipole, OCF, long wire, etc). Any
recommendations? Getting into the attic for multiple tests will be
difficult so I'm looking for a solid starting point!

Dino - KX6D

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