The D3HBTM-225/400-0.3-N/N-BRI from K&L Microwave is a Tunable Filter with Frequency 225 to 400 MHz, Bandwidth 0.525 MHz, Input Power 40 W, Peak Power 160 W, Insertion Loss 2 dB. Tags: Benchtop, Digitally Controlled. More details for D3HBTM-225/400-0.3-N/N-BRI can be seen below.