The BPF-1280-20-C5 from COTS RF is a Band Pass Filter with Frequency 1270 to 1290 MHz, Bandwidth 20 MHz @ 3 dB, Center Frequency 1280 MHz, Insertion Loss 2.5 dB, Rejection 50dB @ 1245 to 1315 MHz. Tags: Module with Connectors. More details for BPF-1280-20-C5 can be seen below.