Experience crystal-clear communication with the Decibel Products DB-4001-1 VHF Cavity radio filter, designed to enhance your radio's performance within the 148-174 MHz frequency range. With its 5-inch bandpass, this filter is a reliable solution for intercepting and filtering signals, ensuring that your audio is free from unwanted noise and interference. Crafted in the United States, this model boasts Decibel's commitment to quality and durability. The DB-4001-1 is compatible with a variety of radio models, making it a versatile addition to your communication equipment. Whether you're in the field or in the office, this radio filter will help you stay connected with unparalleled clarity.