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Re: [TowerTalk] elevated short vertical dipole orquarterwave monopole?

To: 'towertalk' <>
Subject: Re: [TowerTalk] elevated short vertical dipole orquarterwave monopole?
From: Jan Erik Holm <>
Date: Sun, 05 Dec 2004 08:45:20 +0100
List-post: <>
Strange. I´ve used gamma matched yagis for 35 years
or so and also used (at times) very high power, never
had a failure or any problem with it.
Sure a gamma match isn´t a perfectly balanced feed
method but IMO it´s simple and reliable.

73 Jim SM2EKM

Tom Rauch wrote:

Hey, while we are on the subject, how about gamma matched
yagis. I have a friend who swears by using a gamma match
on his yagis with no feedline choke.

When I had a gamma matched Wilson 20M yagi, the common mode
voltage on the coax was so high the coax actually arced
between the tower leg and the coax shield. I was only using
a 4-1000A amplifier, so it isn't like I had a lot of power

That's my only experience with a gamma matched Yagi.

I'd bet the whole antenna is pretty much unbalanced.

73 Tom


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