Rigol DG900 Pro Series User Manual page 39

please refer to
tap the button again to toggle the parameter to "Period". Period = 1/Frequency.
Amplitude/High Level
Click or tap the Ampl/HighL button to set the parameter to "Ampl". "Ampl" is now
highlighted. Click or tap its input field and use the pop-up numeric keypad to set the
amplitude for sine wave. Available units for amplitude include Vpp, Vrms, and dBm
(not available in HighZ) The amplitude for sine wave is 5 Vpp by default. The range of
amplitude is limited by "Impedance" and "Frequency/Period" settings. For details,
Table 5.2 Range of Amplitude
refer to
Click or tap the button again to toggle the parameter to "HighL". High Level = Offset
+ Amplitude/2. The high level range is related to the low level setting value. That is,
high level minus low level cannot exceed the current range of amplitude (
Range of Amplitude
NOTE
1. How to convert the amplitude in Vpp to the corresponding value in Vrms?
Vpp is the unit for signal peak-peak value and Vrms is the unit for signal effective value. The
default unit is Vpp. When setting the amplitude with the pop-up numeric keypad, you can
click or tap the unit drop-down button to select the desired unit and then click or tap
"Enter" to confirm the current amplitude unit setting. You cannot set the amplitude in dBm
or Vrms for Arb and Harmonic.
The relationship between Vpp and Vrms varies for different waveforms. Take sine wave as
an example. The relationship between the two units is as shown in the figure below.
Vpp=2Vamp
According to the figure above, the conversion relationship between Sine Vpp and Vrms
fulfills the following equation:
V pp =
2. How to set the waveform amplitude in the unit of dBm?
a. Set the impedance to "Load" (refer to
b. When setting the amplitude, click or tap the unit drop-down button to select "dBm" in
the pop-up numeric keypad.
c. Input the desired value and then click or tap "Enter" to set the waveform amplitude in
dBm.
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Table 5.1 Range of Continuous Waveform Frequency
).
2
2 Vrms
.
Vamp
Impedance
).
Continuous
. You can click or
Table 5.2
Vrms=0.707Vamp
DG900 Pro User Guide
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