The 8FD10-3400/U250-P/P from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 3265 to 3535 MHz, Bandwidth 270 MHz (1dB), Center Frequency 3400 MHz, Upper Rejection 80 dB, Lower Rejection 80 dB. Tags: Cavity Filter. More details for 8FD10-3400/U250-P/P can be seen below.