Icom AH-4

AH-4 Automatic Universal Controller - Icom AH-4 homemade controller

Icom AH-4 Autotuner - It really does the trick - Article on an outdoor usage of the AH-4 antenna tuner

Icom AH-4 information site - A web site dedicated to the Icom AH-4 antenna tuner

Icom AH-4 modifications - Mods for the Icom AH-4 antenna tuner

Icom AH-4 Remote Automatic Antenna Tuner - A page dedicated to the Icom AH-4 antenna tuner

Inside The Icom AH-4 Antenna Coupler - The AH-4 is an antenna coupler/tuner designed for long wire or whip type antennas.