Output Sweep Waveform - Owon FDS Series User Manual

6.Use Arbitrary Waveform/Function Generator
For the parameter settings of Frequency Modulation (FM), Phase Modulation
(PM) and Frequency-shift Keying (FSK), refer to "Amplitude Modulation (AM)"
for details
.

Output Sweep Waveform

In the sweep mode, the output varies from the start frequency to stop
frequency within the specific scan time. Only sine wave, square wave,
sawtooth wave or arbitrary wave (except DC) can be used to product sweep
waveforms.
When the output signal is sine wave, square wave, ramp wave or arbitrary
wave, press Setting key at the signal source area of the front panel or directly
press the signal source display window at the right side of the screen to pop up
the signal source setting window, then click Sweep in the Composite to enter
the sweep mode.
Set sweep time
Click Sweep Time to set the sweep time, that is, the seconds required from the
start frequency to the stop frequency, ranging from 1ms to 500s.
Set sweep mode
Click Sweep Way to set the sweep mode as Linear or Log.
When Linear is selected, the output frequency varies linearly during the sweep
period;
When Log is selected, the output frequency varies logarithmically during the
sweep period.
Set the frequency
Click Start Freq/Ctr Freq to display "Start Freq" in white. Please note that
"Stop Freq" in Stop Freq/Freq Span is also displayed in white; click Numeric
Display Box to input the required frequency value.
You can also set the frequency boundary for frequency sweep through the
center frequency and frequency range.
Center Frequency = (Start Frequency + Stop Frequency)/2
Frequency Range = Stop Frequency – Start Frequency
Click Start Freq/ Ctr Freq to display "Ctr Freq" in white. Please note that
"Freq Span" in Stop Freq/ Freq Span is also displayed in white; click Numeric
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