Anritsu MG3641A - Manual (Page 52)

SECTION 4 OPERATING INSTRUCTIONS
4.5.2 Displaying the Output Level Relative Value
To display a level in a relative value referred to the current output level defined as reference (0 dB), press the [Rel
Level] key. The lamp of the key will come on, causing the Output Level indicator to display +0 dB.
When an output level relative value is on display, all output level settings made via the number keys, step keys and
the rotary knob will be treated as relative level settings.
To clear the output level relative value display, turn the lamp off by pressing the [Rel Level] key again.
If you need to verify the actual output level while an output level relative value is on display, press the [Shift] key
and, then, keep on holding down the [Rel Level] (Cur Dspl) key. This will allow the actual output level to appear on
the display temporarily.
front panel