The UF9766R from MtronPTI is a Band Pass Filter with Frequency 1.616 to 1.6265 GHz, Bandwidth 10.5 MHz, Center Frequency 1621.25 MHz, Insertion Loss 2 to 2.8 dB, Rejection 20 to 45 dB. Tags: Module with Connectors, Cavity Filter. More details for UF9766R can be seen below.