Features: brand new and high quality The center frequency of this filter is 3960MHz, and the 1 dB bandwidth is about 1600MHz. It is a multilayer thin-film circuit structure with non-sharp cut-off characteristics. It is used for anti-interference and performance optimization of UWB BAND 1-3 wireless communication system receiving equipment It can effectively filter out out-of-band signals, reduce noise and increase dynamic range. Compact, durable and easy to install and use. Package Includes: 1 x Bandpass Filter Specifications: Model: WFB-3050 Impedance: 50 Ohms Center Frequency: 3960 MHz 3 dB Passband: 3168 to 4752 MHz Insertion loss:less than 1.5 dB @3168 ~ 4752 MHz Maximum Carrying Power: 3 for W (35 dBm) Size: approx 34x17.5mm/1.34x0.69in Interface: SMA-M, SMA-F (RF characteristics are symmetrical at both ends, non-directional) Frequency response diagram (frequency sweep range: 40-8000MHz, vertical scale: 10dB per division, marker bandwidth: 3 dB): note: Only the above package content, other products are not included. Light shooting 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 0-2cm.