The ECA813P15A80B-3RU500 from ECHO Microwave is a Band Pass Filter with Frequency 806 to 821 MHz, Insertion Loss 0.5 dB, Rejection 80 dB @ 768.5, Ripple 0.3 dB, Return Loss 14 dB. Tags: Cavity Filter. More details for ECA813P15A80B-3RU500 can be seen below.