The ECA942P35A45B-HP from ECHO Microwave is a Band Pass Filter with Frequency 925 to 960 MHz, Insertion Loss 0.5 dB, Rejection 45 dB @ 136 to 435MHz, Ripple 0.3 dB, Return Loss 20 dB. Tags: Cavity Filter. More details for ECA942P35A45B-HP can be seen below.