The EDA4F1000P56E56 from ECHO Microwave is a Band Pass Filter with Frequency 972 MHz to 1.03 GHz, Insertion Loss 2.5 dB, Rejection 11 to 56 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F1000P56E56 can be seen below.