User manual

RIGOL Chapter 10 Utility and System Settings
DG4000 Series Users Guide
10-18
Channel Coupling
DG4000 supports to enable frequency, phase and amplitude couplings separately
or at the same time. When coupling is enabled, set CH1 or CH2 as the “base
channel and set the frequency, phase or amplitude deviation of the two channels.
Then when the frequency, phase or amplitude of the base channel is changed, the
corresponding parameter of the other channel will change automatically and
always keeps the specified frequency, phase or amplitude deviation.
Press Utility at the front panel, use to open the 2/2 menu page and press
Coupling to enter the channel coupling interface.
1. To Set the Coupling Base
Press Base to set CH1 or CH2 as the base source of coupling. Here, CH2
is selected.
Note that the coupling base can not be changed when the coupling function is
enabled. At this point, this menu is grayed out and disabled.
2. To Enable Coupling Function
Press Coupling to turn On or Off the coupling function. The default is
Off.
Press FreqCoup to turn frequency coupling On or Off. After frequency
coupling is enabled, use the numeric keyboard to input the desired frequency
deviation. Here, it is set to 100Hz.
Press PhaseCou to turn phase coupling On or Off. After phase coupling is
enabled, use the numeric keyboard to input the desired phase deviation. Here,
it is set to 10°.
Press AmpCoup to turn amplitude coupling On or Off. After amplitude
coupling is enabled, use the numeric keyboard to input the desired amplitude
deviation. Here, it is set to 1Vpp.
Parameter relations between CH1 and CH2:
F
CH1
=F
CH2
+ 100Hz P
CH1
=P
CH2
+ 10° A
CH1
=A
CH2
+ 1Vpp
Green * marks are displayed on the left of the frequency, phase and amplitude of
the coupling base source as shown in the figure below, indicating that the