This filter has a 1dB bandwidth of 25MHz and a steep cutoff characteristic. It is used for GSM signal testing in the frequency range of 824 - 849 MHz, and can effectively filter out-of-band signals, reduce noise, and increase dynamic range. Model: FBP-836s Impedance: 50 Ohms Center frequency: 836 MHz Passband (1dB bandwidth): 824 - 849 MHz Insertion loss: Less than 2.5 dB (typical value: - 2.3 dB) Maximum power handling: 100 mW (20 dBm) Interface: SMA-M, SMA-F (The product appearance and printed words depending on the batch, but this does not affect use) Color: As Shown Material: Metal Package Contents: 1 x Bandpass Filter Only the above package content, other products are not included. Note: Light reflection 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.