Sum Modulation
Modulating Source
The instrument accepts an internal or external modulation source.On a two-channel instrument you can modulate
one channel with the other.
l Modulating source: Internal (default), Other Channel, or External.
l With the external source, the carrier waveform is summed by the ±5 V signal level on the rear-panel Modulation
In connector. For example, if you have set the sum amplitude to 10%, then when the modulating signal is at +5
V, the output will be at the maximum amplitude (110% of carrier amplitude). When the modulating signal is at -5
V, the output will be at the minimum amplitude (90% of carrier amplitude).
l Front Panel:
l SCPI: SUM:SOURce {INTernal|EXTernal|CH1|CH2}
90 Agilent 33500 Series Operating and Service Guide
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