The SF3030AO-1214.5MHz-A from Dynamic Engineers is a Band Pass Filter with Frequency 1191 to 1238 MHz, Bandwidth 47 MHz, Center Frequency 1214.5 MHz, Insertion Loss 2.5 to 4.5 dB, Rejection 26 to 52 dB. Tags: Surface Mount, RF SAW Filter. More details for SF3030AO-1214.5MHz-A can be seen below.