87.5-108M Bandstop Filter FM Band Stop Filter Passive Notch FOR RF Ham Radio Amplifier Anti-FM Interference SDR Blog Shortwave

FM Broadcast Band-Reject Filter (Notch Filter) - 87.5-108MHz | Passive EMI Suppression ModulePlease refer to the advertising test curve chart and video before purchasingCore FunctionTargeted FM Signal Attenuation:Blocks 88-108MHz FM broadcast interference in broadband RF receiversHigh Rejection: ≥44dB suppression (typical 44–60dB across band)Minimal Passband Loss: outside notch rangeKey SpecificationsParameterSpecificationFrequency RangeDC – 3,000 MHzNotch Band88 – 108 MHz (±0.5MHz tolerance)Stopband AttenuationTyp. 44–60dB (see test chart)Passband Insertion LossImpedance50 ΩMax Power Handling1W (30dBm)ConnectorSMA Female (External Thread, Internal Hole)DimensionsNo shell : 55 × 12 × 6.5 mm  with shell : 38 x18.8 x11mmPerformance GraphtextFrequency Response:▲ Insertion Loss (dB)│ ____________________│ / \│ 0dB ───────────────────────/ DC to 70MHz \───────────│ _ 130-3000MHz _/│ | |│ >44dB >44dB│ @88MHz @108MHz▼Frequency (MHz)