Hardkey and Softkey Reference ESG Family Signal Generators
Pulse
4-84 User’s Guide
Pulse Period
Use this softkey to change the pulse period for internal pulse
modulation. To change the period, press the softkey once. The current
value for pulse period 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
msec or µsec terminator softkey. The
range of values allowed is 16
µ
s to 30 s. If the value for pulse period is
less than the value for pulse width, pulse width is changed to the same
value as pulse period. Notice that pulse period applies only to internal
pulse modulation; when external pulse modulation or internal square
pulse modulation is selected, this softkey is disabled.
Default Value: 80
µ
s
Softkey Location:
Pulse > Pulse Period
Pulse Rate
Use this softkey to change the pulse rate for internal square pulse
modulation. To change the rate, press the softkey once. The current
value for pulse 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. Notice that the new value of pulse rate
applies only to internal square pulse modulation; when external pulse
modulation or internal pulse modulation is selected, this softkey is
disabled.
Default Value: 400 Hz
Softkey Location:
Pulse > Pulse Rate
Pulse Source
Pressing this softkey reveals a menu of choices for pulse modulation
sources. You can choose internally-generated pulse modulation,
internally-generated square pulse modulation, or select an
externally-applied, DC-coupled signal from the EXT 2 INPUT connector.
The internal and external 2 sources have multiple uses. However, you
can use each source for only one modulation type at a time. If, for
example, you were using the external 2 source in a frequency
modulation configuration for
FM Path 1, and then you configured the
pulse modulation source to also use the external 2 source, the signal
generator would turn off
FM Path 1 and assign the external 2 source to
your pulse configuration.
Default Value: Internal Pulse
Softkey Location:
Pulse > Pulse Source
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