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PRBS Generator
The instrument contains a PRBS (Pseudo Random Binary Sequence) generator for each channel
which may be used in the following ways:
• As the main output from the carrier wave generator
• As a modulating waveform
These options are described in the following sections. In dual channel mode there are some
restrictions on PRBS; see the Dual-Channel Operations section of the Specification for details.
Carrier Wave PRBS
Pressing the Noise/PRBS key will switch to the Noise/PRBS function and show the screen below.
Pressing the
Type soft-key shows the following and allows the PRBS function to be selected.
The
soft-key indicates that there are too many options to show all at once so press this key to
show more. In this case there is one more list of types which will show when the
soft-key is
pressed
One more press of the
soft-key will show the first list again.
Choosing a PRBS type and pressing the
Done soft-key shows the PRBS edit menu. The soft-
keys
PN7, PN9, PN11, PN15, PN20 and PN23 set the number of bits used to generate
the prbs.
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