88
6. Press
F3
to set Mod Frequency. The range is 2 mHz
～
20 kHz (Internal source
only).
7. Press
F4
to set Width Deviation/Duty Deviation (depends on the P_Width/Duty
menu item of the Pulse setting menu when you exit the Modulation mode). The
maximum range of the Duty Deviation is the smaller one in [Pulse Duty, 1-Pulse Duty].
The maximum range of the Width Deviation is Pulse Width.
5.35. To Generate Sweep (Only P4125
– 4165)
Sweep function is only used for CH1. In the frequency sweep mode, the generator "steps"
from the start frequency to the stop frequency at the sweep rate you specify. Sweep can
be generated by Sine, Square or Ramp Waveforms.
Current Parameter
Sweep Waveform
Load
Sweep Type
Sweep Time
Sweep Waveform
Source
Sweep Waveform
Amplitude
Sweep Waveform
Offset
Start
Frequency
Stop
Frequency
Figure 0-20: The User Interface of Sweep Mode
5.36. How to set the parameters of Sweep
1. When the output signal is Sine, Square or Ramp waveform, press the
Mod
button,
then press
F2
to select Sweep to enter the Sweep mode.
2. Press
,
or
button to choose the waveforms. Take Sine for
instance, press
to display the waveform and parameters. You can change
the parameters, please refer to
“To Set signals”. Press
button again to
return to the Sweep mode interface.
3. Press
F1
to set Sweep Time, the Time Span of the Sweep for which the
Frequency changes from the Start Frequency to Stop Frequency.
4. Press
F2
to select the Sweep Type. Linear means setting the Sweep with linear
spacing; Log means setting the Sweep with logarithmic spacing.
