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

GGLL nagato at arnet.com.ar
Sat Sep 16 07:49:22 EDT 2006


	Please, let me add if you use a 4:1 balun try those of current types.

Best regards
Guillermo - LU8EYW.

XE1UFO escribió:
> So sorry, Larry!  Thanks!
> 
> ----- 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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