User Manual

Chapter 4 Common Modulation Output RIGOL
User‟s Guide for DG5000
4-19
To Set Modulating Polarity
Press Polarity to select the “Positive” or “Negative” of the modulating waveform to
control the output phase.
When internal modulation is selected, if the polarity is “positive”, logic low of the
modulating waveform amplitude corresponds to carrier phase output and logic high
corresponds to modulating phase output; if the polarity is “negative”, the situation is
the opposite.
When external modulation is selected, if the polarity is “positive”, logic low of the input
corresponds to carrier phase output and logic high corresponds to modulating phase
output; if the polarity is “negative”, the situation is the opposite.