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

[Lawrence Young]

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