RIGOL DG1000Z Series - Manual (Page 93)

Chapter 2 Front Panel Operations RIGOL
DG1000Z User’s Guide 2-43
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 PM 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, phase deviation of the modulated waveform is controlled by the ±5V signal
level of the connector. For example, if the phase deviation is set to 180°, +5V
signal level corresponds to a 180º phase variation. The lower the external signal
level, the less deviation would be generated.
[CH1/Sync/Ext Mod/Trig/FSK] [CH2/Sync/Ext Mod/Trig/FSK]