Frequency-Shift Keying (Fsk) Modulation; To Select Fsk Modulation - HP 33120A User Manual

Chapter 3 Features and Functions

Frequency-Shift Keying (FSK) Modulation

Frequency-Shift Keying (FSK) Modulation
You can configure the function generator to "shift" its output frequency
between two preset values using
output shifts between the two frequencies (called the "carrier frequency"
and the "hop frequency") is determined by the internal rate generator or
the signal level on the rear-panel FSK terminal. The function generator
can produce an FSK waveform using sine, square, triangle, ramp, and
arbitrary waveforms.
For more information on the fundamentals of FSK Modulation,
refer to chapter 7, "Tutorial".

To Select FSK Modulation

• The
annunciator turns on when
FSK
• Only one modulation mode can be enabled at a time. When you
enable , the previous modulation mode is turned off.
FSK
• Front-Panel Operation: Enable
modulation parameters. Press
using the present settings for frequency, amplitude, and offset voltage.
• Remote Interface Operation: To ensure proper operation, you should
enable after you have set up the other modulation parameters.
FSK
FSKey:STATe {OFF|ON}
90
modulation. The rate at which the
FSK
is enabled.
FSK
before you set up the other
FSK
to output the waveform
Shift FSK