The BPF-1600C from RF Bay is a Band Pass Filter with Frequency 1570 to 1630 MHz, Bandwidth 60 MHz, Center Frequency 1600 MHz, Insertion Loss 2 to 2.5 dB, Upper Rejection 40 to 45 dB. Tags: Module with Connectors, Ceramic Filter. More details for BPF-1600C can be seen below.