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Re: [TowerTalk] Topband: RF choke woes??

Subject: Re: [TowerTalk] Topband: RF choke woes??
From: "Dan Zimmerman N3OX" <>
Date: Mon, 7 May 2007 17:08:56 -0400
List-post: <>
> This apparently isn't good enough??  When testing at the antenna with
> my MFJ it is "spot-on" correct just like the model and resonant at
> the design freq. of 3.830.  However when using the homebrew RF choke,
> resonance is just above 4 MHz.  I did test without a choke at all and
> resonance was much much higher.

Where were you standing relative to the antenna when you tested it?
Where does the coax run relative to the antenna?

Anything that gets anywhere near the T-wires will have a major detuning effect.


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