B&K Precision 4052-4055 - Manual - Manual (Page 26)

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After entering the numeric value, use the menu function keys to select the degree (°)
unit to apply for the phase setting.
Equal Phase
The unit can set both channel 1 and channel 2 to be in phase with a push of one button.
From the menu, simply select EqPhase and both channels will be in-phase with respect to
each other.
Configure Duty Cycle and Symmetry
Note: This section does not apply for pulse and noise waveforms.
Duty Cycle
Note: For square waveform only.
Follow the steps below to configure the duty cycle of a square waveform.
1. Set the instrument for square wave output by pressing the Square button.
2. From the menu, select Duty.
3. The cursor position will now highlight the first digit of the duty parameter display.