The ECA4765P80C40AFM from ECHO Microwave is a Band Pass Filter with Frequency 4.73 to 4.81 GHz, Insertion Loss 1.35 dB, Rejection 40 dB @ 4650MHz, Ripple 0.3 dB, Return Loss 17 dB. Tags: Cavity Filter. More details for ECA4765P80C40AFM can be seen below.