OWON AG-S series User Manual

Page 26

5.Front Panel Operation

Current Parameter

Carrier

Frequency

Carrier

Amplitude

Carrier Waveform

Modulating Waveform

Load

Mod Depth

AM Frequency

Mod Type

Mod Shape

Source

Figure 5-12: The User Interface of AM

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

button to display the waveform and parameters of the Carrier

Waveform. You can change the parameters, please refer to "To Output Sine Signals"
on P11. Press

button again to return to the Modulation mode interface.

(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 2 mHz～20 KHz (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%.