Operating Basics
46 AFG3000 Series Quick Start User Manual
Adjusting Parameters of Two Channel Signals (dual-channel model only)
Phase
You are performing a dual-channel test using the arbitrary/function generator, and you want to observe the phase relation-
ship between the CH1 signal and CH2 signal after you change the frequency or period of either channel. The instrument 
provides the function called “Align Phase” to adjust the phase relationship between the two signals. Follow these steps:
1. In this example, a 10 MHz continuous 
sine waveform is used. Confirm that 
both phases are set to 0 degrees.
2. Change the CH1 frequency to 5 MHz, 
and then change the CH2 frequency to 
5 MHz.
3. To align the phase of two channel 
signals, push the Align Phase bezel 
button.
When you push the Align Phase 
button, the instrument will stop the 
signal generation, adjust the phases of 
both channels, and automatically restart 
the signal generation.
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