The MAXI-225-512-3-SMA from Pole/Zero is a Tunable Filter with Frequency 225 to 512 MHz, Bandwidth 11.48 MHz, Insertion Loss 3 dB, Supply Voltage 5 to 100 V, Supply Current 10 to 500 mA. Tags: Module with Connectors, Digitally Controlled. More details for MAXI-225-512-3-SMA can be seen below.