User manual

RIGOL Chapter 6 Sweep
DG4000 User's Guide
6-4
If the center frequency is 550Hz, the range of the frequency span is:
±2 × (550Hz – 1μHz) = ±1.099999998kHz;
if the center frequency is 155MHz, the range of the frequency span range is:
±2 × (160MHz – 155MHz) = ±10MHz.
The generator will renewedly sweep from the specified "Start Frequency" after
"Center Frequency" or "Frequency Span" is changed.
Tip
In large-scale sweep, the amplitude characteristic of the output signal might
change.
Sweep Type
DG4000 provides three sweep types, including Linear, Log and Step, and the
default is Linear.
Linear Sweep
The output frequency of the instrument varies linearly in the way of "several Hertz
per second". The variation is controlled by "Start Frequency", "End Frequency" and
"Sweep Time".
When Sweep is enabled, press Type to select "Linear". A line is displayed on the
waveform on the screen, indicating that the output frequency changes in linear
mode.