The EMA8H806P30F40DL from ECHO Microwave is a Band Pass Filter with Frequency 791 to 821 MHz, Insertion Loss 3 dB, Rejection 40 dB @ 10 to 771 MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8H806P30F40DL can be seen below.