User Manual

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5.7.2 Sum Amplitude
After selecting Sum, press the Sum Ampl softkey. Then use the knob or numeric keypad to enter the
desired amplitude. The sum amplitude represents the amplitude of the signal added to the carrier (in
percent of carrier amplitude). When sum amplitude at 100%, amplitude of modulating waveform is a
half of amplitude of carrier waveform. When sum amplitude at 0%, amplitude of modulating waveform
is 0, then amplitude if carrier waveform will be half of setting value for carrier waveform.
5.7.3 Modulating Waveform Frequency
Press 〖Sum Freq〗softkey then set the desired value using knob or keypad. Different from other
modulating mode, the modulating frequency can be highly greater than carrier frequency.
5.7.4 Modulating Waveform Shape
Press 〖Shape〗softkey then select ‘Shape’ to enter the desired wave. Press 【Waveform】 key, then
select most waveforms from above table as modulating waveform, but some waveforms are not
available. Finally, return to Sum menu.
5.7.5 Modulating Source
The waveform generator will accept an internal or external modulation source for Sum. Press
〖Source Int/Ext〗softkey. It’s available to set modulating frequency and modulating waveform if
‘Internal’ source is selected. But if you select External source, the carrier waveform is modulated with
an external waveform. The frequency deviation is controlled by
the ±5 V signal level present on the rear-panel Modulation In connector.