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•
When external triggering is selected, the Generator will accept a hardware trigger
applied on the external digital modulation connector (FSK Trig) on the rear panel.
Every time the connector receives a polarized TTL pulse, the Generator will output
one impulse train. The impulse train can be N-Cycle, Gated or Infinite type.
•
Note: When you select external trigger, Trigger Out option will be ensconced and
won’t show on the parameter list, because Trigger Out is executed through the
external digital modulation connector (FSK Trig), which cannot function as trigger
input and output connectors at the same time.
•
When manual triggering is selected, the Generator will output one impulse train
each time the Trigger button is pressed in which the backlight flashes. The
Generator can output an “N-Cycle” or an “Infinite” type of impulse train.
Trigger Out
•
When internal or manual trigger source is selected, the Generator outputs TTL-
compatible signal (Square wave). Trigger Out is set to “Off” by default. To modify
the parameter, enter impulse train type interface first, then use the multipurpose
knob and direction buttons or press
Params→Trig Out→Off MHz
to complete the
setup.
•
When internal triggering is selected, the Generator outputs a square wave with
50% duty cycle from external digital modulation connector (FSK Trig) at the start of
the impulse train. Waveform period equals the specified impulse train period.
•
When manual triggering is selected, the Generator outputs a pulse with pulse
width >1µs from external digital modulation connector (FSK Trig) at the start of
burst.
•
When external triggering is selected, Trigger Out option won’t show on the
parameter list, because Trigger Out is executed through the external digital
modulation connector (FSK Trig), which cannot function as both trigger input and
output connector at the same time.
Trigger Edge
•
No matter external digital modulation connector (FSK Trig) is used as Trigger In or
Out connector, Trigger Edge can be specified for both situations.
•
When it is used as Trigger In connector (external trigger source is selected), ‘Rise’
represents the Generator and triggers the rising edge of the external signal to
output one impulse train, and “Fall” means that the Generator triggers the falling
edge of external signal to output one impulse train.
•
In Gated mode, if the polarity is ‘Pos’, the Generator triggers the high level to
output one impulse train, otherwise it triggers the low level to output one impulse
train if it is ‘Neg’.
•
When the connector is used as the Trigger Out connector (internal or manual
trigger source is selected and Trigger Out is enabled), ‘Rise’ means the trigger
signal with rising edge is output, and “Fall” means that the trigger signal with falling
edge is output. It defaults at Rise.
•
To modify the parameter, enter the impulse train type interface first, then use the
multipurpose knob or direction buttons, or press
Params→TrigEdge→Falling
(Gated mode: press
Params→Polarity→Neg
) to complete the setup.
