3.5MHz-30MHz HF Low Pass Filter LPF Kit 100W For Shortwave Radios Features:- High frequency LPF- 3.5Mhz-30Mhz- Power 100W- Voltage: 12V- Switch band manually: 80m, 40m, 20-17m, 15-10mPackage Included:- 1 x Set of Low Pass Filter