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Re: [TowerTalk] AS-AYL-4 4 direction Low Band Receiving Antenna

To: "Stone, Gary R." <>
Subject: Re: [TowerTalk] AS-AYL-4 4 direction Low Band Receiving Antenna
From: "Rick Karlquist" <>
Date: Mon, 18 Dec 2006 12:18:25 -0800 (PST)
List-post: <>
Stone, Gary R. wrote:
> Greetings,
> ALSO - how about the unit being sold by DX Engineering - don't know the
> model number but it uses (4) 102 inch whips.  It seems very pricey for
> the system but I am curious.  Any homebrew plans around for using (4)
> 102 inch whips? (they are easy to find and cheap).
> Gary, N5PHT

Save your money.  You can do just as well by using a passive
transformer to connect the whip to your transmission line.
I actually tried this in an A/B test with the DX Engineering
amplifier.  You might start with a Mini-Circuits T16-6 which
will load the antenna with 800 ohms (or if you use RG-6U, 1200
ohms).  That will be within a few dB of optimum sensitivity.
Try modeling it on EZNEC and you will see what I mean.

Rick N6RK


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