Teledyne LeCroy WaveStation Waveform Generator Operators Manual - Manual (Page 42)

WaveStation
36 922700-00 Rev A
Generating an FM Modulated Waveform
After selecting the Mod → FM (Frequency Modulation) operator button,
the WaveStation shows the FM Operation menu and corresponding
Display and Detail dialogs.
Press adjacent Operation buttons and use the Digital Input Front Panel
Controls to make specific adjustment/selection parameter choices. For
more information on getting to this point, see Navigating Interfaces,
Adjusting Parameters, and Making Selections (on page 11).
Mod → FM Operation menu selections and parameters include FM Freq,
FM Dev, Type, Shape, and Source as follows:

FM Freq - This parameter sets the modulating waveform frequency. The
internal source frequency range is 2 MHz to 20 kHz.

FM Dev - This parameter sets the maximum frequency deviation.
NOTE: The frequency deviation value should be ≤ the carrier waveform
frequency. The sum of the deviation and the carrier waveform frequency
should be ≤ the maximum frequency of the selected waveform. When using an
external source, the deviation is controlled by the voltage level of the
connector attached to Modulation In on the Back Panel. +6V corresponds to the
selected deviation and -6V to the negative selected deviation. So, a +/- 6 V
input results in an output FM deviation equal to the preset FM deviation.

Type - Frequency modulation.

Shape - Choose the waveform shape type (used as a carrier waveform)
for modulation. Sine, Square, Triangle, UpRamp, DnRamp, Noise, or Arb
waveforms may be modulated, while Pulse, and DC cannot.

Source - Select Internal or External. If External is selected, use the
Modulation In connector on the Back Panel.