Rigol DG1022Z, User Manual

Page: 78 / 180

RIGOL Chapter 2 Front Panel Operations
2-40 DG1000Z User’s Guide
To Select Modulation Source
DG1000Z can accept modulating waveform from internal or external modulation
source. Press Mod

Source to select “Int” or “Ext” modulation source.
1. Internal Source
When internal modulation source is selected, press Shape to select Sine, Square,
Triangle, UpRamp, DnRamp, Noise or Arb as modulating waveform. The default
is Sine.

Square: 50
％
duty cycle

Triangle: 50
％
symmetry

UpRamp: 100
％
symmetry

DnRamp: 0
％
symmetry

Arb: the arbitrary waveform selected of the current channel
Note:
noise can be used as modulating waveform but can not be used as carrier
waveform.
2. External Source
When external modulation source is selected, Shape and FM Freq will be
grayed out and disabled. The generator accepts the external modulating signal
from the [CH1/Sync/Ext Mod/Trig/FSK] connector at the rear panel. At this
time, frequency deviation of the modulated waveform is controlled by the ±5 V
signal level of the connector. For example, if the frequency deviation is set to 1
kHz, +5V signal level corresponds to a 1kHz increase of frequency and -5V signal
level corresponds to a 1kHz decrease of frequency.
[CH1/Sync/Ext Mod/Trig/FSK]
[CH2/Sync/Ext Mod/Trig/FSK]