LeCroy WaveStation 2012, Operator'S Manual

Page: 47 / 101

Operator's Manual
WSta-OM-E RevA
45
Generating an FSK (Frequency Shift Keying
Modulation) Modulated Waveform
After selecting the Mod → FSK modulated waveform operator button as
explained in the Generating Modulated Waveforms Overview (on page
41), the WaveStation shows the FSK Operation menu and corresponding
Display and Detail dialogs.
Press adjacent Operation buttons and use the Digital Input Front Panel
Controls (on page 27) 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 16).
FSK modulation is an output frequency that switches from the carrier
waveform and hop preset frequencies at a specific point. The specific
frequency point where the output switches is the Key Frequency . The
Key Frequency is determined by the internal frequency generator or the
signal voltage level from the
Trig/Gate/Fsk/Burst connector on the Back
Panel (on page 14).
Mod/ASK Operation menu selections and parameters include Key Freq ,
Type , and Source as follows:

Key Freq - This parameter sets the frequency at which the output
frequency shifts between the carrier amplitude and the hop
frequecy. The internal source frequency range is 2 MHz to 50 kHz.

Type - Frequency Shift Keying Modulation.