Instrument Function
R&S
®
SMJ100A
197
Operating Manual 1403.7458.32 ─ 14
"Single"
Single measurement of bit error rate. The measurement is started by
clicking the "Execute Single" button.
If a measurement is in progress, the current values for "Block Error
Rate", "Errors" and "Received Blocks" are cyclically displayed. The
measurement is terminated when either or both of the termination cri-
teria have been reached. To start a new measurement, the "Execute
Single" button must be clicked again.
Remote command:
Max Received Blocks
Enter the number of transmitted data blocks to be checked before the measurement is
terminated.
This criterion will terminate the BLER measurement after the specified number of data
blocks, even if very few errors or none at all have been detected. With a low number of
block errors, the measurement result may be statistically unreliable.
If the measurement is terminated because the number of data blocks entered here was
checked, "Number of Data Blocks" appears to the right of "Terminated By".
Remote command:
Max Errors
Enter the number of block errors to occur before the measurement is terminated.
This criterion terminates the measurement relatively quickly if the error rate is high.
The measurement result is statistically reliable, since many errors were already coun-
ted.
If the measurement is terminated because the number of block errors entered here
was reached, "Number of Errors" appears to the right of "Terminated By".
Remote command:
CRC Order
Selects the byte order of the checksum (CRC).
"LSB"
The checksum starts with the least significant byte.
"MSB"
The checksum starts with the most significant byte.
Remote command:
BLER Type
Displays the CRC polynomial used. CCITT CRC 16 : G(x) = x
16
+ x
12
+ x
5
+ x
1
is the
CRC polynomial supported.
Remote command:
Bit and Block Error Rate Measurements - BERT Block
Summary of Contents for SMJ100A
Page 34: ...Preface R S SMJ100A 18 Operating Manual 1403 7458 32 14 Notes on Screenshots...
Page 86: ...Preparing for Use R S SMJ100A 70 Operating Manual 1403 7458 32 14 LXI Configuration...
Page 826: ...Remote Control Commands R S SMJ100A 810 Operating Manual 1403 7458 32 14 UNIT Subsystem...
Page 828: ...Maintenance R S SMJ100A 812 Operating Manual 1403 7458 32 14 Storing and Packing...
Page 844: ...Hardware Interfaces R S SMJ100A 828 Operating Manual 1403 7458 32 14 BERT Connector...
