Operator's Manual
Generating Burst Waveforms
Sine, Square, Ramp, Pulse, and Arb waveforms may utilize an N-Cycle Burst or a Gated Burst. Noise
waveforms utilize only a Gated Burst.
N-Cycle Burst
In this method, you either specify a number of cycles after which to begin the burst and its duration (period), or
set an infinite cycle and trigger the burst manually or upon an external event.
1.
Generate a basic waveform
of type Sine, Square, Ramp, Pulse, or Arb. Before outputting, press the
Burst
function button.
2. Press the
NCycle
softkey until it is selected.
3. Set the following Burst parameters:
l
Source
- Choose
Internal
,
External
, or
Manual
. If you select External, connect the trigger source to the
Trig/Gate/Fsk/Burst
connector on the Back Panel.
l
Start Phase
- Enter a specific phase value (in °) to define the starting point of the burst. The phase
varies from 0° to 360°; the default setting is 0°. For an Arbitrary waveform, 0° is the first waveform
point.
l
Burst Period
- If using Internal Source, enter the length of the burst period.
NOTE
: The period time increases if necessary to allow the specified number of cycles in a burst. The
following formula is applied:
Burst Period > Carrier Period × Burst Number.
l
TrigOut
(Internal and Manual Sources) or
Edge
(External Source) - Choose
Up
(rising edge),
Down
(falling edge), or
Off
.
l
Delay
- Press the
More
softkey to display this option. Specify a span of time between the trigger
input and the start of the burst. The minimum delay amount is 240 ns.
l
Cycles
or
Infinite
- Press the
More
softkey to display these options. If Cycles is selected, enter the
desired number of repetitions (from 1 to 1,000,000). Infinite generates a continuous waveform that
only stops upon a trigger event. Choose External or Manual Source to use Infinite.
4. When all parameters are set, press the appropriate
Output
button.
5. If you selected Manual source, a red Trigger option appears on the Burst menu. Press the
Trigger
softkey
to manually start and stop the burst as the waveform is output.
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