E.5 Measurement
E-11
endix
ppendix E
E.5 Measurement
E.5.1 BER measurement execution example
This section describes an example procedure for BER measurement.
Table E.5.1-1 BER measurement setting example
Remote Commands Explanation of Commands
:USB:ID 11;:DISP:ACT 0,11,1
:DEM:MEAS:STAR
:DEM:MEAS:EAL:STAT?
:DEM:MEAS:EAL:STAT?
:DEM:MEAS:STOP
:DEM:CALC:DATA:EAL? "CURR:FREQ"
:DEM:CALC:DATA:EAL?
"CURR:ER:TOT"
:DEM:CALC:DATA:EAL?
"CURR:EC:TOT"
:DEM:CALC:DATA:EAL?
"CURR:CC:TOT"
:DEM:CALC:DATA:EAL?
"CURR:AINT:PSL"
Sets the remote command destination to
DEMUX.
Starts BER measurement.
Determines that BER measurement has
started. A return value of "1" indicates that
measurement has started.*
Determines that BER measurement has ended.
The return value will be "0" when measurement
ends if the ED Measurement Conditions are set
to "Single".*
Stops BER measurement after the wait time if
the ED measurement cycle is set to "Repeat" or
"Untimed".
Queries Frequency.
Queries Error Rate.
Queries Error Count.
Queries Clock Count.
Queries the Sync Loss occurrence state.
*: Use processing corresponding to C language "for" and "While"
statements for this processing to transmit queries until the expected
value is detected. Set the sending interval between queries to at
least 200 ms to avoid overloading the instrument used for the
measurement processing. Execute the next command after the
expected value has been detected.
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