The CF9740R from MtronPTI is a Band Pass Filter with Frequency 1.217 to 1.238 GHz, Bandwidth 20.0 MHz, Center Frequency 1227.60 MHz, Insertion Loss 2.75 to 3.75 dB, Rejection 6 to 37 dB. Tags: Surface Mount, Ceramic Filter. More details for CF9740R can be seen below.