Keysight U2761A Mode D'emploi page 61

Frequency Modulation (FM)
A modulated waveform consists of a carrier waveform and a modulating
waveform. Below shows an example of the FM waveform. In FM, the frequency of
the carrier is varied by the instantaneous voltage of the modulating waveform.
The variation in frequency of the modulated waveform from the carrier frequency
is called the frequency deviation.
FM deviation
Figure 2-17
To Select FM
The U2761A allows only one modulation mode to be enabled at a time. The
U2761A does not allow FM to be enabled at the same time that sweep is enabled.
Keysight U2761A User's Guide
Modulating frequency
FM waveform
Features and Functions 2
61