Hardkey and Softkey Reference ESG Family Signal Generators
FM
4-28 User’s Guide
FM Start Rate
Changes the starting internal modulation frequency for swept-sine
frequency modulation. To change the value, press the softkey once. The
current value for the FM start rate is displayed in the active entry area.
To enter a new value, rotate the front panel knob until the desired value
is displayed, use the up and down arrow keys, or enter the value using
the numeric keypad and press the
Hz or kHz terminator softkey. The
range of values allowed is 0.1 Hz to 50 kHz. The minimum increment
allowed is 0.1 Hz.
This softkey is coupled to the
FM Rate softkey in the initial FM Menu
and the
FM Tone 1 Rate softkey in the FM Dual-Sine Menu. Any value set
for
FM Start Rate is reflected in the FM Rate and FM Tone 1 Rate softkeys.
Conversely, if you change the value for either the
FM Rate softkey or the
FM Tone 1 Rate softkey, the value for FM Start Rate is changed to match.
Default Value: 400.0 Hz
Softkey Location:
FM/ΦM > FM Waveform > Swept-Sine > FM Start Rate
FM Stop Rate
Changes the ending internal modulation frequency for swept-sine
frequency modulation. The current value for the FM stop rate is
displayed in the active entry area. To enter a new value, rotate the front
panel knob until the desired value is displayed, use the up and down
arrow keys, or enter the value using the numeric keypad and press the
Hz or kHz terminator softkey. The range of values allowed is 0.1 Hz to
50 kHz. The minimum increment allowed is 0.1 Hz.
This softkey is coupled to the
FM Tone 2 Rate softkey in the FM Dual-Sine
Menu. Any value set for
FM Stop Rate is reflected in the FM Tone 2 Rate
softkey. Conversely, if you change the value for the
FM Tone 2 Rate softkey,
the value for
FM Stop Rate is changed to match.
Default Value: 400.0 Hz
Softkey Location:
FM/ΦM > FM Waveform > Swept-Sine > FM Stop Rate
FM Sweep Time
Sets the sweep time for swept-sine frequency modulation. The signal
generator will vary the FM rate from the specified start rate to the stop
rate in the time set with this softkey. Enter the desired sweep time
using the up and down arrow keys, the front panel knob, or enter a
value using the numeric keypad and press the
sec or msec terminator
softkey. The range of values allowed is 1 ms through 65.535 s. The
minimum increment allowed is 1 ms.
Default Value: 100.0 msec
Softkey Location:
FM/ΦM > FM Waveform > Swept-Sine > FM Sweep Time
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