OWON AG-S series - Manual (Page 29)

5.Front Panel Operation
(7)
Press F4 to set Phase Deviation. The Phase Deviation between the Modulating
Waveform and the Carrier Waveform ranging from 0° to 180°.
FSK (Frequency Shift Keying)
The FSK Modulation is a modulation method, the output frequency of which switches
between two the pre-set frequencies (Carrier Waveform Frequency and the Hop
Frequency). The Frequency of the Output Frequency switch between the carrier
waveform frequency and the Hop frequency is called the FSK rate. The frequency by
which the output frequency switch from each other is determined by the Internal
Frequency generator or the Signal Voltage Level offered by the Ext Trig/FSK/Burst
connector in the rear panel. The Carrier Waveform can only be Sine. The user interface of
the FSK is shown as below.
Current Parameter
Carrier Frequency Carrier Amplitude
Carrier Waveform
Carrier Waveform
Modulating Waveform
Load
FSK Rate
Mod Type
Source
Hop Frequency
Figure 5-15: The User Interface of FSK
How to set the parameters of FSK
(1)
Press Mod function button to enter the Modulation mode.
(2)
Press F1 to switch Mod Type to FSK. 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 Ext Trig/FSK/Burst
connector in the rear panel to input the external signal, then skip ahead to step (5). If
you choose Internal, continue to the steps below.
(5)
Press F3 to set FSK Rate. The range is 2 mHz～100 KHz (Internal source only).
(6)
Press F4 to set Hop Frequency. The range is 2 mHz～25KHz.
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