• Matching impedance range:HF bands 16.7 to 150 Ω unbalanced* 150 MHz band 20 to 125 Ω unbalanced* 2* 1 Less than VSWR 3:1; * 2 Less than VSWR 2.5:1• Minimum operating input power:HF bands : 8 W50 MHz band : 15 W• Tuning accuracy : VSWR 1.5:1 or less• Insertion loss : Less than 1.0 dB(after tuning)ANTENNA TUNER