The BC FM Band Lock Filter is designed to suppress FM broadcast signals and protect performance on other bands. Key features and benefits: - Frequency suppression: Attenuates the 88 to 108 MHz FM band with about 50 dB of attenuation, reducing strong FM signals that can overload receivers. - Deep notch characteristics: The filter has a relatively deep notch, which helps reject strong FM broadcast signals and can also affect the adjacent receive band in a controlled way. - RF overload mitigation: When used with RF front-end systems (R), it helps prevent FM crowding from causing RF overload and poor performance on other frequency bands in areas with very strong FM broadcasting. - Diagnostic indicator: If tuning the BC FM station results in it appearing as WFM on other frequencies, this can indicate overload conditions that the filter is designed to mitigate. - Practical applications: - In environments with very strong FM signals (urban or dense broadcast areas), to preserve reception quality on other bands. - In fixed installations or mobile setups where FM interference can degrade overall radio performance. - In scanning or monitoring equipment that requires clean access across multiple bands without FM-induced desensitization. - Function and compatibility notes: Specifically aimed at FM broadcasting environments to improve multi-band performance; designed to work as a band lock filter to address FM-related overload issues.