The SF1183G from Murata is a Band Pass Filter with Frequency 856.5 to 906.5 MHz, Bandwidth 25 MHz, Center Frequency 881.5 MHz, Insertion Loss 2.1 to 2.8 dB, Power 0.031 W. Tags: Surface Mount, Ceramic, Surface Mount, Ceramic Filter. More details for SF1183G can be seen below.