Table of Contents
Advertisement
Waveform varies with the instantaneous voltage of the modulating waveform. The user
interface of the AM is shown as below.
Load
Mod Depth
Mod Type
Mod Shape
Source
Carrier Waveform
How to set the parameters of AM
(1) Press Mod function button to enter the Modulation mode.
(2) Press F1 to switch Mod Type to AM. If the Carrier Waveform is not Sine, the
system will switch it to Sine automatically.
(3) Press
Waveform. You can change the parameters, please refer to "To Output Sine Signals"
on P11. Press
(4) Press F5 to select the source. If the source is External, use the Modulation In
connector in the rear panel to input the external signal, the setting of AM is finished.
If you choose Internal, continue to the steps below.
(5) Press F2 to choose Mod Shape, you can choose Sine, Square or Ramp.
(6) Press F3 to set AM Frequency. The range is 1μHz～20KHz (Internal source only).
(7) Press F4 to set Mod Depth. The range is 0%～100%.
Term Explanation
AM Frequency:
The frequency of modulating waveform.
Mod Depth:
The Amplitude Range of modulating waveform. In the 0% Modulation, the output
amplitude is the half of the set one. In the 100％ Modulation, the output amplitude is
the same with the set one. For an external source, the depth of AM is controlled by the
voltage level of the signal connected to the Modulation In connector in the rear
panel. +5V corresponds to the currently set depth 100%.
5.Front Panel Operation
Current Parameter
Carrier
Amplitude
Figure 5-14: The User Interface of AM
button to display the waveform and parameters of the Carrier
button again to return to the Modulation mode interface.
AM Frequency
Carrier
Frequency
21
Modulating Waveform
Carrier Waveform
Advertisement
Table of Contents
