Instructions

4.Panel Operation
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(4) Press Source to select the source. If External is selected, connect the external
signal source to the Ext Mod In interface on the rear panel and skip to step (6). If
you select Internal, continue with the following steps.
(5) Press Modulation Waveform to select the modulation waveform. You can select
Sine, Square, Ramp, Noise, or Arb.
(6) Press the PWM Rate softkey to set the PWM rate, which can be set from 2 mHz
to 100 kHz (for internal sources only).
(7) Press the Duty Cycle Deviation softkey to set the duty cycle deviation (depending
on the non-modulation mode, the pulse wave setting menu is pulse width or
duty cycle). The maximum value of the duty cycle deviation is: 0 to 99%. [pulse
wave duty ratio, 100% - pulse wave duty ratio]
Amplitude shift keying (ASK)
The output modulation waveform consists of a carrier wave and a modulated wave.
The carrier wave can be a sine wave, a square wave, a ramp wave, or an arbitrary
wave. In phase modulation, the phase of the carrier varies with the instantaneous
voltage of the modulation waveform. The user interface for phase modulation is
shown below.
Figure 4-15 Amplitude shift keying user interface
Steps to set frequency shift keying modulation