Press to set the span for the PM audio spectrum display. Use the numeric keypad, the rotary knob, or the arrow keys to set the value. Valid values are 2 kHz, 5 kHz, 10 kHz, 20 kHz, 70 kHz, and 140 kHz.
Scale milli‑Rad
Press to set the vertical scale in milliradians. Use the numeric keypad, the rotary knob, or the arrow keys to enter a value.