This filter has low in-band insertion loss and steep cut-off characteristics. It is specially used for the performance optimization of 433MHz image transmission (model aircraft, UAV aerial photography) receiving equipment, and can effectively filter out out-of-band signals, reduce noise, and increase dynamic range. The inside of this product is an ultra-thin PCB board, which still has excellent suppression ability for out-of-band remote signals, and its performance is far superior to products made with bare PCB boards; using aluminum alloy shielding shell, anti-interference, no out-of-band spurious response, Small, sturdy and easy to use. Model: FBP-433s Impedance: 50 Ohms Center frequency: 433.92 MHz 3 dB passband: 422 to 446 MHz Insertion Loss: Less than 1.8 dB @ 430~438 MHz Maximum Carrying Power: 100 mW (20 dBm) Interface: SMA-M, SMA-F color:As shown Material:Metal Package Contents: 1 x bandpass filter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.