Analog Noise Output
To
generate analog noise, select "analg noise" from the Standard Waveform screen;
figure 4-71.
STANDARD WAVEFORMS
opulse train setup 0
o digtl noise setup 0
• analg noise setup 0
Figure 4-71. Standard Waveform Sereen
When
the Model 395 builds the noise waveform the screen displays a message, see
figure
4-72.
This
message
always appears,
but
may
only
be
seen
during
longer
sequence lengths.
Function
being built.
-----Please wait ------
... 39% cancel
0
Figure 4-72. Noise Message
AIso, while running noise, set the noise sample
dock
rate by pressing the FREQUENCY
key and program the rate between 100 mHz and 100 MHz. The Frequency screen aIso
displays the actual bandwidth. Varying the sample
dock
changes the bandwidth start
and stop frequencies. While the start and stop frequencies will change with the sample
dock,
the recommended method
of
changing them is
via
the Setup screens.
To
vary the amplitude, press the AMPLITUDE key and enter the level
in
units
of
Vp-
p
or
Vp. Analog noise operates in continuous, triggered, and gated modes,
but
cannot
operate in the sweep mode.
4-54 Front Panel Operation Reference
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