The BFTC-615+ from Mini Circuits is a Band Pass Filter with Frequency 450 to 780 MHz, Center Frequency 615 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-615+ can be seen below.