The 4FD10-7700/U200-P/P from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 7553 to 7847 MHz, Bandwidth 294 MHz (1dB), Center Frequency 7700 MHz, Insertion Loss 0.55 dB, Upper Rejection 40 dB. Tags: Cavity Filter. More details for 4FD10-7700/U200-P/P can be seen below.