The EMEA15F442D30B from ECHO Microwave is a Band Pass Filter with Frequency 442.1 to 442.35 MHz, Insertion Loss 2 dB, Rejection 30 dB @ 436.85 to 437.1MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMEA15F442D30B can be seen below.