beautypg.com

To set modulating waveform frequency, To set modulation depth – RIGOL DG5000 Series User Manual

Page 80

background image

RIGOL

Chapter 4 Common Modulation Output

User’s Guide for DG5000

4-4

To Set Modulating Waveform Frequency


When internal modulation source is selected, press AM_Freq to set the modulating
waveform frequency.
 Input the desired frequency value using the numeric keyboard or knob.
 The modulating waveform frequency ranges from 2 mHz to 50 kHz, and the

default value is 100 Hz.


Note: This menu will be grayed out and disabled when external modulation source is
selected.

To Set Modulation Depth


Modulation depth expressed as a percentage indicates the amplitude vibration degree.
The AM modulation depth ranges from 0% to 120%. Press AM Depth to set AM
modulation depth.
 When the modulation depth is 0%, the output amplitude is the half of the

specified value.

 When the modulation depth is 100%, the output amplitude is equal to the

specified value.

 When the modulation depth is higher than 100%, the output of the instrument

will not exceed 10 Vpp (The load is 50 Ω).


When external source is selected, AM modulation amplitude is also controlled by the
±6 V signal level of the Mod in/I connector at the rear panel. For example, if the
modulation depth is 100%, the output amplitude is the maximum when the
modulating signal level is +6 V and the minimum when the level is -6 V.