The EMA8J1004P80H40D from ECHO Microwave is a Band Pass Filter with Frequency 964 MHz to 1.04 GHz, Insertion Loss 4 dB, Rejection 40 to 60 dB, Return Loss 13 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8J1004P80H40D can be seen below.