The NBP-2003 from Stellant Systems is a Band Pass Filter with Frequency 1.43 to 1.54 GHz, Bandwidth 110 MHz, Center Frequency 1485 MHz, Insertion Loss 0.4 dB, Upper Rejection 50 dB @1.815 to 6 GHz. Tags: Module with Connectors. More details for NBP-2003 can be seen below.