Hardkey and Softkey Reference ESG Family Signal Generators
FM
4-30 User’s Guide
FM Tone 2 Rate
Press this softkey to set the internal modulation frequency for the FM
tone 2. Enter the desired rate using the up and down arrow keys, the
front panel knob, or enter a value using the numeric keypad and press
the
kHz or Hz terminator softkey. The range of values allowed is 0.1 Hz
through 50 kHz. The minimum increment allowed is 0.1 Hz.
This softkey is coupled to the
FM Stop Rate softkey in the FM Swept-Sine
Menu. Any value set for
FM Tone 2 Rate is reflected in the FM Stop Rate
softkey. Conversely, if you change the value for the
FM Stop Rate softkey,
the value for
FM Tone 2 Rate is changed to match.
Default Value: 400.0 Hz
Softkey Location:
FM/ΦM > FM Waveform > Dual-Sine > FM Tone 2 Rate
FM Waveform
Pressing this softkey reveals a menu of FM waveform choices for your
FM Path 1 and FM Path 2 configurations. Select from sine, triangle, square,
ramp, noise, dual-sine, and swept-sine waveforms. Notice that your
waveform selection applies only to whichever FM path configuration
you have currently selected.
Default Value: Sine
Softkey Location:
FM/ΦM > FM Waveform
Immediate
This softkey is one of the choices in the FM Sweep Trigger menu.
Choosing
Immediate immediately triggers swept-sine frequency
modulation in a continuous mode. To stop the sweep, choose a different
trigger such as
Ext, or set the waveform to something other than
Swept-Sine.
Softkey Location:
FM/ΦM > FM Waveform > Swept-Sine > FM Sweep Trigger >
Immediate
Internal
This softkey lets you internally generate an AC-coupled, frequency
modulation signal.
The internal source has multiple uses but can be used for only one
modulation at a time. If, for example you were using the internal source
in an amplitude modulation configuration for
AM Path 1, and then you
configured
FM Path 2 to also use the internal source, the signal generator
would turn off
AM Path 1 and assign the internal source to your FM Path 2
configuration.
Softkey Location:
FM/ΦM > FM Source > Internal
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