R&S AFQ100A
AFQ Commands - Signal Generation
1401.3084.32 6.63
E-3
BERT Block
This subsystem contains the commands for the bit error rate measurement. If the BERT feature is
required, choose instrument option K80.
Command Parameters
Default
unit
Remarks
BERT:RESult?
Query
only
BERT:SEQuence AUTO
|
SINGle
BERT:SETup:CLOCk[:POLarity] RISing
|
FALLing
BERT:SETup:DATA[:POLarity] NORMal
|
INVerted
BERT:SETup:DENable
OFF | LOW | HIGH
BERT:SETup:IGNore
OFF | ONE | ZERO
BERT:SETup:MCOunt 0.0
...
4294967295.0
BERT:SETup:MERRor 0.0
...
4294967295.0
BERT:SETup:RESTart:STATe ON
|
OFF
BERT:SETup:TYPE
PRBS9 | PRBS11 | PRBS15 | PRBS16 | PRBS20
| PRBS21 | PRBS23
BERT:STARt
No
query
BERT:STATe ON
|
OFF
BERT:STOP
No
query
BERT:UNIT
ENGineering | SCIentific | PCT | PPM
[SOURce:]INPut:BERT:IMPedance G50
|
G1K
[SOURce:]INPut:BERT:THReshold 0.01
..
2.0
Volt
TRIGger:BERT[:IMMediate]
No
query
BERT:RESult
?
Queries the result of the last BER measurement. The response consists of seven results separated
by commas. In the first measurement following the start, intermediate results for the number of data
bits/data blocks, error bits/errors and error rate are also queried. In the following measurements
(only for
BERT:SEQ AUTO
) only the final results of each single measurement are queried.
Note:
At the end of a measurement, the restart of a new one is delayed until the first measurement result
has been queried with
BERT:RES?
. The resulting brief measurement interruption is irrelevant
because the subsequent measurement will be synchronized within 24 data bits.
This command is a query and has therefore no *RST value.