47
Figure 56: Gated Burst Interface
Function Menu
Settings
Explanations
Gated
Use the gated mode.
Polarity
Positive
Set the polarity for the gated signal.
Negative
Start Phase
Set the start phase of the burst.
Burst Period
Set the burst period. (source internal only)
Source
Internal
Choose internal source as a trigger.
External
Choose external source as a trigger. Use the [Aux In/Out] connector at the rear panel.
Table Menu Explanations of the Gated Burst
Start Phase
Define the start point in a waveform. The phase varies from 0° to 360°, and the default setting is 0°. For an Arbitrary Waveform,
0° is the first waveform point.
Burst Period
Burst Period is only available when the trigger source is internal. It is defined as the time from the start of a burst to the start of the
next one. Choose
[Burst Period]
and use the numeric keyboard or arrow keys and knob to input the desired value.
Burst Period ≥ 0.99 µs + carrier period x burst number
If the current burst period set is too short, the generator will increase this value automatically to allow outputting the specified
number of cycles.
Cycles/Infinite
Set the number of waveform cycle in an N-Cycle (1 to 50,000 or Infinite).
If Infinite is chosen, then a continuous waveform will be generated once a trigger occurs.
Delay
Set the time delay between the trigger input and the start of the N-Cycle burst.
Burst Trigger Source
The burst trigger source can be internal, external or manual. The generator will generate a burst output when a trigger signal is
received and then wait for the next trigger source.
1. Internal Trigger
Choose
[Source] → [Internal]
, the generator outputs continuous burst waveform when internal trigger is selected. Choose
[Trig
Out]
as Up or Down the [Aux In/Out] connector at the rear panel will output a trigger signal with specified edge.
2. External Trigger
Choose
[Source] → [External]
, the generator accepts the trigger signal inputted from the [Aux In/Out] connector at the rear panel
when external trigger is selected. A burst will be generated once the connector gets a CMOS pulse with specified polarity. To set
the CMOS pulse polarity, choose
[Edge]
to select Up or Down.
3. Manual Trigger
Choose
[Source] → [Manual]
, a burst will be generated from the corresponding channel when the
Trigger
softkey is pressed
when manual trigger is selected.