150W Shortwave Antenna Tuner, Antenna Tuner Aluminum Alloy with 4pcs -2 Magnetic Inductors for Long Term Use Specification: Item Type: Antenna Tuner Material: Aluminum alloy Maximal: SSB Greater than or equal to 180w, it is recommended to use it for a long time not larger than (SSB Greater than or equal to 150w, FT8, CW, Greater than or equal to 80W) Frequency: 1.9-54MHz (specifically affected by the length of the antenna and the degree of deviation of the standing wave) Tuning Impedance Range: 5 Ohm -1.1K Ohm Package List: 1 x Antenna Tuner 1 x Connection Line 1 x Plug Note: Be sure to confirm that the cable is connected according to the , otherwise the product will be burnt out