This filter has low in-band insertion loss and steep cut-off characteristics.It is specially used for the performance optimization of 433MHz 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-433sImpedance: 50 OhmsCenter frequency: 433.92 MHz3 dB passband: 422 to 446 MHzInsertion Loss: Less than 1.8 dB @ 430~438 MHzMaximum Carrying : 100 mW (20 dBm)Interface: SMA-M, SMA-Fcolor:As shownMaterial:MetalPackage Contents:1 x bandpass filterOnly 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.