Features and Functions 3
Keysight 33210A User’s Guide 153
External Timebase Reference (Option 001)
Option 001 is the External Timebase Reference, which provides rear panel
connectors (10 MHz In and 10 MHz Out) and circuitry to allow synchronization
between multiple Keysight 33210A function generators or to an external 10 MHz
clock signal. You can also set the phase offset of the output waveform from the
front panel or over the remote interface. To synchronize multiple 33210As, all of
them must have Option 001 installed.
To align the phase of two 33210As, you can use a dual-channel oscilloscope to
compare the output signals:
1 Connect two 33210As, with 10 MHz Out connected to 10 MHz In:
2 Connect the outputs of the 33210As to the scope channel inputs:
3 Set the same frequency on both function generators. The scope should show
the signals to be in sync with regard frequency, but not phase. (A square wave
works well to show the phase difference.)
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