The ECA455P10B40BM from ECHO Microwave is a Band Pass Filter with Frequency 451.1 to 460.60 MHz, Insertion Loss 1 dB, Rejection 40 dB @ 462.970MHz, Ripple 0.6 dB, Return Loss 18 dB. Tags: Cavity Filter. More details for ECA455P10B40BM can be seen below.