Features Low in Band Insertion Loss: The 403MHz bandpass filter has low in band insertion loss and steep cut off characteristics. Anti Interference Shell: The saw bandpass filter shell is anti interference and has no out of band spurious response. Easy to Use and Carry: The receiver band pass filter is small in size, sturdy, easy to use and convenient to carry. Excellent Performance: The inside of the receiver filter is ultra thin PCB board, has excellent suppression ability for out of band remote signals, and the performance is far superior to products made with bare PCB boards. Application: This band pass filter is dedicated to 403MHz receiving equipment to optimize its performance, effectively filter out of band signals, reduce noise, and increase dynamic range. Specification: Item Type: Bandpass filter Material: PCB Impedance: 50Ohms Center Frequency: 403MHz 1dB Passband: 401-405MHz Insertion Loss: <2.5dB at 401-405MHz Maximum Carrying Power: 100mW (20dBm) Package List: 1 x Bandpass Filter Note: Pay attention to the correct operation. Package List 1 x Bandpass Filter