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88-108 MHz N female bandpass filter
BPF 4/4-NF | Amphenol Procom
Amphenol Procom's BPF 4/4-FM N(f) bandpass filter is designed for the 88 - 108 MHz band and supports up to 50 W of input power, with a typical insertion loss of 1.2 dB. Ideal as a preselector to protect receivers from out-of-band interference or to reduce spurious emissions in transmitters, it offers compact dimensions and reliable operation even over a wide temperature range.
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Description
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Description
The BPF 4 4 FM from Amphenol Procom is a bandpass filter with 4 helical resonators and aperture coupling, designed for applications in the 88-108 MHz band. It can be used as a preselector to protect a receiver from out-of-band interference or to reduce spurious emissions from a transmitter with power up to 50 W.
The filter is tunable over the entire 88-108 MHz band and offers compact dimensions thanks to the use of helical resonators. The structure is made of extruded aluminum housing and steel chassis, while Teflon insulation is used in the coaxial cables and connectors. The black vinyl coating helps protect against corrosion and ensures reliable operation over a wide temperature range.
Key Features
- Filter Type: Bandpass
- Frequency: 88 - 108 MHz
- Bandwidth: 3 - 4 MHz
- Maximum Input Power: 50 W
- Insertion Loss: Less than or equal to 1.4 dB, typical 1.2 dB
- Impedance: 50 Ohms
- VSWR: Less than 1.5 to 1
- Connector: N female
- Dimensions: Approximately 165 x 104 x 33 mm
- Weight: Approximately 0.5 kg
- Operating temperature: -30°C to +60°C