Keysight 81160A - 3.7 Amplitude Modulation (AM)

Appendix
180
3.7 Amplitude Modulation (AM)
Introduction
A modulated waveform consists of:
 Carrier Waveform Shape
 Modulating Waveform Shape
In AM, the amplitude of the carrier is varied by the instantaneous voltage of
the modulating waveform. The 81150A / 81160A will accept an internal or
external modulation source.
For more information on the fundamentals of Amplitude Modulation, refer to
the Tutorial chapter.
AM Characteristics
 The 81150A / 81160A will allow only one modulation mode to be
enabled at a time. For example, you cannot enable AM and FM at the
same time. When you enable AM, the previous modulation mode is
turned off.
 The 81150A / 81160A will not allow AM to be enabled at the same
time that sweep or burst is enabled. When you enable AM, the
sweep or burst mode is turned off.
Front-Panel
Operation
You must enable AM before setting up any of the other modulation
parameters. Press and then select “AM” using the Modulation Type
softkey. The AM waveform is output using the present settings for the
carrier frequency, modulating frequency, output amplitude, and offset
voltage.
Remote Interface
Operation
To avoid multiple waveform changes, enable AM after you have set up the
other modulation parameters.
:AM[1|2]:STATe {ON|OFF}