EMI FILTER 147 Select 9kHz/120kHz RBW Panel operation 1. Press the BW key. BW 2. Press F1 (RBW Man). RBWAuto ManF 1 3. Select 9kHz/120kHz RBW using the Arrow keys or Scroll knob. The RBW value appears in the command window. RBW: 9kHzNote In the automatic mode, RBW is selected according to the internal reference setting. For reference RBW/VBW setting, see page99. Check EMI filter installation status Panel operation 1. Press the System key. System 2. Press F6 (More). More...F 6 3. Press F4 (System Config On). The system configuration window appears. System ConfigOn OffF 4 4. The 9/120k RBW sign shows the installation status, installed (checked) or not installed (unchecked). Installed Not installed Note EMI filter (9k/120k RBW) and 10k/100k RBW are exclusive. These two optional items cannot be installed together.