Teledyne LeCroy WaveStation Waveform Generator Operators Manual - Manual (Page 44)

WaveStation
38 922700-00 Rev A
Generating an FSK Modulated Waveform
After selecting the Mod → FSK (Frequency Shift Keying) operator button,
WaveStation shows the FSK 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).
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.
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 frequency.
The internal source frequency range is 2 MHz to 50 kHz.

Type - Frequency Shift Keying Modulation.

Hop Freq - Specify the desired hop frequency level (for variation from
the set carrier waveform frequency).

Source - Select Internal or External. If External is selected, use the
Trig/Gate/Fsk/Burst connector on the Back Panel.