Features: The filter has low interpolation loss and steep cut-off characteristics. It is optimized for performance at 1900MHz for image transmission receiving equipment (flight mode), effectively filtering out-of-band signals, reducing noise, and increasing dynamic range. The interior of this product is an ultra-thin PCB board, which still has excellent out-of-band remote signal suppression capability, and its performance is much better than that of a bare PCB board. The shielded aluminum alloy shell is used for anti-interference and no out-of-band false response. Small and robust, easy to use. Specifications: Material: ABS Weight: 10 g Size: 34x17.5mm/1.33x0.68in Model: FBP-1900 Impedance: 50 ohm Center Frequency: 1900 MHz Passband: 1800~2000 MHz Insertion Loss: < 2 dB 1850~1950 MHz Maximum Power: 5W (37dBm) Interface: SMA-M, SMA-F Note: 1.Please allow 1-2cm error due to manual measurement, please make sure you don't mind before ordering. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1x Bandpass Filter