The ECA155P7D40B from ECHO Microwave is a Band Pass Filter with Frequency 151 to 158 MHz, Insertion Loss 2 dB, Rejection 40 dB @ 140 to 144.015MHz, Ripple 1.5 dB, Return Loss 18 dB. Tags: Cavity Filter. More details for ECA155P7D40B can be seen below.