The NBP-2002 from Stellant Systems is a Band Pass Filter with Frequency 1.40 to 1.70 GHz, Bandwidth 300 MHz, Center Frequency 1550 MHz, Insertion Loss 0.4 dB, Upper Rejection 50 dB @1.92 to 6 GHz. Tags: Module with Connectors. More details for NBP-2002 can be seen below.