R&S SMJ100A, Operating Manual

Page: 536 / 874

Remote Control Commands
R&S
®
SMJ100A
520 Operating Manual 1403.7458.32 ─ 14
:BLER:UNIT <Unit>
:BERT:UNIT <Unit>
Sets the unit for the error rate display on the screen.
BERT|BLER:RES
always speci-
fies the error rate as the quotient of "Number of errors" and "Number of data items",
unaffected by this command.
Parameters:
<Unit> ENGineering | SCIentific | PCT | PPM
ENGineering
The error rate is output in exponential notation with the exponent
–3 or –6.
SCIentific
The error rate is output in scientific notation, i.e. standardized to
one place to the left of the decimal.
PCT
The error rate is output in percent.
PPM
The error rate is output in parts per million.
*RST:
ENGineering
Example: BERT:UNIT PPM
selects the unit "ppm" for the display of the error rate.
Manual operation: See "Bit Error Rate" on page 186
[:SOURce]:INPut:BERT:IMPedance <Impedance>
Sets the impedance of the BERT inputs CLOCK, DATA, DATA ENABLE and
RESTART.
Parameters:
<Impedance> G1K | G50 | G10K
*RST:
G1K
Example: INP:BERT:IMP G50
The impedance of the BERT inputs is set to 50 ohm to ground.
Manual operation: See "Impedance" on page 190
[:SOURce]:INPut:BERT:THReshold <Threshold>
Sets the high/low threshold of the BERT inputs Clock, Data, Data Enable and
Restart . In the case of positive polarity, this threshold determines the point as of which
a signal is high (active) or low (inactive).
BERT and BLER Subsystems