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C-20 GB1400 User Manual
Example data_pattern prbs
data_pattern?
Data Pattern Query. Returns a character string indicating the current Generator or
Analyzer data pattern mode.
Min. Abbr. data_p?
Returns [prbs|word] (Generator)
[prbs|word|rdata] (Analyzer)
Example data_pattern? (command)
DATA_PATTERN PRBS (response)
prbs_length [v]
PRBS Length. Selects the current PRBS pattern which becomes the current active
pattern if and only if pattern "mode" is set to PRBS (see data_pattern command). The
argument [v] may be set to 7, 15, 17, 20, or 23 corresponding to the five PRBS patterns
that can be transmitted by the Generator and Analyzed by the Analyzer.
Min. Abbr. prb
Arguments 7: Selects the PRBS with a length of 2
7
-1 bits.
15: Selects the PRBS with a length of 2
15
-1 bits.
17: Selects the PRBS with a length of 2
17
-1 bits.
20: Selects the PRBS with a length of 2
20
-1 bits.
23: Selects the PRBS with a length of 2
23
-1 bits.
Example prbs_length 23
prbs_length?
PRBS Length Query. Returns an integer n, where 2
n
-1 is the length of the current prbs
pattern.
Min. Abbr. prb
Returns <NR1> which may equal 7, 15, 17, 20, or 23.
Example prbs_length? (command)
PRBS_LENGTH 23 (response)