The ECC707R782R742P18R12R29D90A from ECHO Microwave is a Band Pass Filter with Frequency 698 to 788 MHz, Insertion Loss 2 dB, Rejection 80 to 90 dB, Ripple 0.8 dB, Return Loss 20 dB. Tags: Cavity Filter. More details for ECC707R782R742P18R12R29D90A can be seen below.