The SF3030AO-1199MHz-A from Dynamic Engineers is a Band Pass Filter with Frequency 1145 to 1253 MHz, Bandwidth 108 MHz, Center Frequency 1199 MHz, Insertion Loss 4.6 to 5.5 dB, Rejection 9 to 25 dB. Tags: Surface Mount, RF SAW Filter. More details for SF3030AO-1199MHz-A can be seen below.