The ECA457C465G8C60A from ECHO Microwave is a Band Pass Filter with Frequency 457 to 469 MHz, Insertion Loss 2 dB, Rejection 60 dB @ 452.1 to 452.3MHz, Ripple 1 dB, Return Loss 20 dB. Tags: Cavity Filter. More details for ECA457C465G8C60A can be seen below.