The BFTC-618+ from Mini Circuits is a Band Pass Filter with Frequency 460 to 776 MHz, Center Frequency 618 MHz, Insertion Loss 4.8 to 6 dB, Upper Rejection 25 to 30 dB, Lower Rejection 25 to 35 dB. Tags: Ceramic, Ceramic Filter. More details for BFTC-618+ can be seen below.