The 4FD10-8450/T50-O/O from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 8410.75 to 8489.25 MHz, Bandwidth 78.5 MHz (3dB), Center Frequency 8450 MHz, Insertion Loss 2.65 dB, Upper Rejection 20 dB. Tags: Cavity Filter. More details for 4FD10-8450/T50-O/O can be seen below.