Generating A Swept Output - Fluke 291 Getting Started Manual

291, 292, 294
Getting Started Manual
stepped attenuator switches, the actual and programmed
values of the DC offset will be different. In the event you
will be warned by a text message on the display.
You can experiment, for example, by changing the
amplitude from 2 V p-p to 200 mV p-p using the key
sequence AMPL 0.2 ENTER.
The instrument will give an audible beep and the display
will show:
**** WARNING 13
DC offset changed by
amplitude
If you then press OFFSET again the display will show:
DC OFFSET:
program +1.00
(actual +100.
This is because the amplitude change has resulted in a
change of 20 dB in the stepped attenuator, and this
change applies equally to the amplitude and the DC offset.
18
****
Vdc
mVdc)
load:hiZ
Note that the precise value of the actual offset also
depends upon the attenuator's stored calibration factors
and may therefore be marginally different from those
shown above.

Generating a Swept Output

You can generate swept, phase-continuous sine waves
and other waveforms.
Press the key
SWEEP
The sweep set-up display is as follows:
SWEEP SETUP:
range...
time...
manual...
Each of the submenu items leads to a second screen in
which you can set the parameters chosen; for example the
range... soft key allows you to set the sweep range in
terms of either start and stop frequency or of center
frequency and span.
Experiment by setting up a continuous linear sweep,
taking 100 ms to go from 40 kHz to 70 kHz in the upward
direction, with a marker at the middle of the sweep
(55 kHz).
off
type...
spacing...
marker...