Generating a triggered burst – Fluke DDS Function Generator 271 User Manual

Page 27

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Getting Started

Using the Instrument

At this point the lamp next to the SWEEP key should be
flashing and the display should look like this:

MODE=BEG-END LAW=LOG
RAMP TIME=0.05 s
TRIG SRC=CONTINUOUS
MORE->>>


All these settings are fine except for the sweep time, which
is too short if you are listening to the signal.

Change the sweep time to, say, 5 seconds. When you
press the ENTER key the display will return to the main
menu, so press EDIT and SWEEP again and use the
FIELD

key to move to the next screen.

MODE=BEG-END LAW=LOG
RAMP TIME=5.00 s
TRIG SRC=CONTINUOUS
MORE->>>


Now set the beginning and end frequencies. The
frequencies shown here correspond to a sweep of 2
octaves starting at middle C, with a marker in the middle of
the sweep.

BEG FRQ=261.6000 Hz
END FRQ=1.108700kHz
MARK FRQ=523.3000 Hz
MORE->>>


Now press the SWEEP key.

The sweep is generated continuously. You can reverse
the direction on the first sweep edit menu by changing
MODE=BEG-END

to MODE=END-BEG.

You can also set up to initiate the sweep manually - do
this by changing TRIG SRC=CONTINUOUS to
TRIG SRC=MAN/REMOTE.

Single sweeps are now

initiated by pressing the MAN/SYNC key.

Note that the settings for the internal trigger generator
have no bearing on the sweep in this instance.

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