- Primary function: This filter is designed to filter FM to prevent its influence on the short. - Key performance: It can suppress signals in the 88 to 108 MHz range with an attenuation of about 50 dB or more. - Notch characteristics: The notch is relatively deep and can affect the target frequency. - Gain-related behavior: When increasing the gain for the FM broadcast channel, other frequencies may appear WFM-like; this behavior can be observed. - 2-3 practical use scenarios: - Scenario 1: In a radio receiver where FM broadcast interference impacts reception on other bands, use this filter to reduce FM energy and improve signal clarity. - Scenario 2: In a multi-band or SDR setup where strong FM signals cause bleed into adjacent frequencies, apply the filter to achieve higher isolation between bands. - Scenario 3: In measurement or testing environments where FM saturation can distort readings on non-FM channels, deploy the filter to maintain stable performance when gain is adjusted. - Important notes: - The description reflects the specifications provided: FM suppression primarily for the 88-108 MHz band, attenuation of about 50 dB or more, and the notch depth affecting the target frequency. - Size, material, and explicit compatibility details are not specified in the given information.