The Icom AT-180 is an automatic antenna tuner for a number of Icom transceivers. You must check your transceiver owner's manual for compatibility. It works from 1.9 MHz to 54 MHz and has a maximum input power of 120 W. It connects to the transceiver via a 13-pin DIN cable, which is included in this sale and a coaxial cable, which is not included.
I have been using this AT-180 with my Icom IC-706 MKII transceiver and my Hustler 6-BTV vertical, and it works well.
There is no specific manual for the AT-180. Instead, operating instructions are included in the operating manuals for the different transceivers with which it works.
Please contact me with any questions.