LDG Electronics AT-100PROII Automatic Antenna Tuner 1.8-54 MHz, 1-125 Watts, Updated features include an LED indicator for antenna selection and an LED to indicate when in bypass .2 Year Warranty 1 to 125 watt power range (SSB and CW, 30W on PSK), 100W on 6M. - Easy to read LED bargraph display for RF power, SWR, status. LED indicator for antenna selection and bypass. 4000 memories for instantaneous band changing. - Two position antenna switch. Separate memories for each antenna. Tuning time: 0.5 to 6 seconds full tune, 0.2 sec memory. - Selectable user parameters: Auto/Semi, 125/12.5 watt scale, autotuning threshold and more. 1.8 to 54.0 MHz coverage. Built-in frequency sensor. - Tunes 6 to 1000 ohm loads (16 to 150 on 6M),. - For Dipoles, Verticals, Vs, Beams or and Coax Fed Antenna. Includes DC power cable. - Power requirements: 11 to 16 volts DC at 500 mA Max. - Small Size Enclosure: 7.5D x 5.5W x 2.0H. Weight: 1.5 pounds.