RIGOL DG1000Z Series - Manual (Page 96)

RIGOL Chapter 2 Front Panel Operations
2-46 DG1000Z User’s Guide
To Select Modulation Source
Press Mod  Source to select “Int” or “Ext” modulation source.
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square
with 50% duty cycle, and the frequency at which the output amplitude “shifts”
between “carrier amplitude” and “modulating amplitude” is determined by “ASK
Rate”.
2. External Source
When external source is selected, the generator accepts the external modulating
signal from the [CH1/Sync/Ext Mod/Trig/FSK] connector at the rear panel.
Note: for the [CH1/Sync/Ext Mod/Trig/FSK] connector, controlling ASK
modulation externally is different from controlling AM/FM/PM modulations
externally. In ASK modulation, you can set the modulating polarity.
To Set Modulating Rate
When internal source is selected, press ASK Rate to set the rate at which the output
amplitude shifts between “carrier amplitude” and “modulating amplitude”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
Note: when external modulation source is selected, this menu will be grayed out and
disabled.
[CH1/Sync/Ext Mod/Trig/FSK] [CH2/Sync/Ext Mod/Trig/FSK]