The ZX75BP-1450-S+ from Mini Circuits is a Band Pass Filter with Frequency 1320 to 1580 MHz, Center Frequency 1450 MHz, Insertion Loss 1.1 to 2 dB, Upper Rejection 40 to 75 dB, Lower Rejection 40 to 70 dB. Tags: Module with Connectors, Ceramic Filter. More details for ZX75BP-1450-S+ can be seen below.