The AM3030 from Atlanta Micro is a Tunable Filter with Frequency 3.5 to 6.5 GHz, Tunable Frequency 3.5 to 6.5 GHz, Bandwidth 3000 MHz, Rejection 45 dB, Input Power 27 dBm. Tags: Surface Mount, Digitally Controlled. More details for AM3030 can be seen below.