YAESU FC-301 ANTENNA TUNER FREQUENCY COVERAGE: 160,80,40,20,15,10 METERS INPUT Z: 50-75 OHMZ MAXIMUM VARIATION IN LOAD Z: 50 OHM IN 10-250 OHMS 75 OHM IN 18-300 OHMS MAXIMUM XMTR PWR: 500W PEP @ 50 OHMS POWER METER CALIBRATION SCALES: 25,250,500 WATTS INSERTION LOSS: 0.5DB MAX REAR PANEL ANTENNA CONNECTIONS: 3 COAXIAL 'UHF' TYPE, 1 SINGLE WIRE TERMINAL DIMENSIONS: 212L X 125H X 295D MM. WEIGHT 4.6 KG. SWR CALIBRATION: TO 4:1 SWR