HP 33120A - Sweep Trigger Source

Sweep Trigger Source
In the triggered sweep mode, the function generator outputs a single
sweep each time a trigger is received. After one sweep from the start
frequency to the stop frequency, the function generator waits for the
next trigger while outputting the start frequency.
• Sweep trigger source:
Internal, Single, or External. The default
is Internal.
• When the internal trigger source is enabled (default), the function
generator outputs a continuous sweep at a rate determined by the
sweep rate specified.
• Pressing
Single to enable the single trigger mode also enables the
external trigger mode. External triggering is like the front-panel
single trigger mode except that you apply a trigger signal to the
rear-panel Ext Trig terminal. The function generator is triggered on
the rising edge of a
TTL pulse.
• The
Trig annunciator turns on when the function generator is waiting
for a single or external trigger.
• Front-Panel Operation: Pressing
Single to enable the single
trigger mode also enables the external trigger mode.
Press
Shift Internal to enable the internal trigger mode.
• Remote Interface Operation:
TRIGger:SOURce {IMMediate|EXTernal|BUS}
See “Triggering” on page 98 for more information.
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Chapter 3 Features and Functions
Frequency Sweep
97