The ECA810C855P9G36D30B from ECHO Microwave is a Band Pass Filter with Frequency 806 to 860 MHz, Insertion Loss 2 dB, Rejection 30 dB @ 817 to 827MHz, Ripple 1.5 dB, Return Loss 18 dB. Tags: Cavity Filter. More details for ECA810C855P9G36D30B can be seen below.