The SF3030AO-1059MHz-A from Dynamic Engineers is a Band Pass Filter with Frequency 1051 to 1067 MHz, Bandwidth 16 MHz, Center Frequency 1059 MHz, Insertion Loss 1.7 to 3 dB, Rejection 15 to 37 dB. Tags: Surface Mount, RF SAW Filter. More details for SF3030AO-1059MHz-A can be seen below.