Broad frequency range - 5 MHz to 30 MHz operation makes this HF low pass filter versatile for a range of shortwave radio applications. High power handling - Nominal power rating of 100 W allows strong transmissions with consistent performance and without noticeable loss of quality. Efficient heat management - PCB design incorporates a large heat dissipation area for effective cooling, helping to extend the filter’s service life and maintain stable operation. Easy band switching - Manual band selection lets you quickly choose between 80 m, 40 m, 20-17 m, and 15-10 m bands, adapting the filter to your current operating needs without tools. Key benefits - Improves signal quality by attenuating out-of-band signals and reducing harmonics. - Protects receivers and transceivers from unwanted RF energy, contributing to cleaner front-end performance. - Reliable operation in both fixed and portable/field setups due to robust cooling and high power handling. What makes it stand out - Combines wide HF coverage with high power capability, a purpose-built heat dissipation design, and straightforward manual band selection for practical, on-the-fly band management. Compatibility and use cases - Designed for use with shortwave radios and HF transmitters to filter bands from 5 MHz to 30 MHz. - Use case 1: A multi-band HF station operating across 5-30 MHz, where the filter suppresses harmonics and improves overall signal clarity. - Use case 2: A portable or field setup that requires dependable cooling and stable performance during extended transmissions. - Use case 3: A test or measurement setup needing quick switching among bands 80 m, 40 m, 20-17 m, and 15-10 m to evaluate filter behavior across the HF spectrum.