The ZX75BP-B1280-S+ from Mini Circuits is a Band Pass Filter with Frequency 1160 to 1400 MHz, Center Frequency 1280 MHz, Insertion Loss 1 to 2 dB, Upper Rejection 20 to 68 dB, Lower Rejection 40 to 68 dB. Tags: Module with Connectors, Ceramic Filter. More details for ZX75BP-B1280-S+ can be seen below.