[ICOM] RE: ICOM AT120 AUTOTUNER: DO YOU USE A BALUN WITH A LADDERLINE-FED DOUBLET?

[XE1UFO]

Thanks, Steve!!

----- Original Message ----- 
From: "Lawrence Young" <younlr at mybluelight.com>
To: <icom at mailman.qth.net>
Sent: Friday, September 15, 2006 5:00 PM
Subject: Re: [ICOM] RE: ICOM AT120 AUTOTUNER: DO YOU USE A BALUN WITH A 
LADDERLINE-FED DOUBLET?


Steve: May I suggest that you put the 4:1 balun at the end of the 
ladderline, and then run a short length of coax to the tuner, unless the 
tuner will be remotely located outside the house near the antenna feedline. 
Since you are using a balanced  doublet antenna, you should not need 
radials. A good ground on the tuner for safety's sake would be a good idea. 
A short length of coax in this case would not have much loss. Use one of the 
larger size coaxes such as RG-213U or 8/U if possible. Good luck, Larry 
K4LXV
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