Features: The filter has low interpolation loss and steep cut-off characteristics. It is optimized for the performance of 1900MHz for image transmission (aviation mode) receiving equipment, which can effectively filter 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 to the out-of-band remote signal, and the performance is much better than that of the bare PCB board. The aluminum alloy shielded for shell is used for anti-interference and no out-of-band spurious response. Small and sturdy, easy to use. Specifications: Material: Metal Weight: 10g Size: 34x17.5mm/1.33x0.68inch Model: FBP-1900 Impedance: 50 Ohms Center Frequency: 881.5 MHz Passband: 868 ～ 895 MHz Insert Loss: 2.0 ～ 2.5 dB Maximum Load Power: 100 mW (20dBm) Interface: SMA-M, SMA-F Package Includes: 1x Bandpass Filter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.