The ECB157D161P1G3E75A-2U from ECHO Microwave is a Band Pass Filter with Frequency 157 to 162.5 MHz, Insertion Loss 2.5 dB, Rejection 75 dB @ 161.5 to 162.5MHz, Ripple 1 dB, Return Loss 20 dB. Tags: Cavity Filter. More details for ECB157D161P1G3E75A-2U can be seen below.