Rohde & Schwarz CMU-K20, Руководство по эксплуатации

Страница: 400 / 646

Common: MODulation:PERRor CMU-K20/21/22/23/24
1115.6088.12 6.96 E-12
READ:ARRay:MODulation[:PERRor]:EPSK[:CURRent]? Phase Error in Burst
READ:ARRay:MODulation[:PERRor]:EPSK:AVERage?
READ:ARRay:MODulation[:PERRor]:EPSK:MMAXimum?
Start single shot measurement and return results
⇒
RUN
FETCh:ARRay:MODulation[:PERRor]:EPSK[:CURRent]?
FETCh:ARRay:MODulation[:PERRor]:EPSK:AVERage?
FETCh:ARRay:MODulation[:PERRor]:EPSK:MMAXimum?
Read measurement results (unsynchronized)
⇒
RUN
SAMPle:ARRay:MODulation[:PERRor]:EPSK[:CURRent]?
SAMPle:ARRay:MODulation[:PERRor]:EPSK:AVERage?
SAMPle:ARRay:MODulation[:PERRor]:EPSK:MMAXimum?
Read measurement results (synchronized)
⇒
RUN
Returned values Description of parameters Def. value Def. unit FW vers.
–100.0 deg to+ 100.0 deg,
... ,
–100.0 deg to+ 100.0 deg 1
st
value for phase error
...
xth value for phase error
NAN
...
NAN deg
...
deg V2.15
Description of command
These commands are always queries. They return the phase error vs. time at fixed, equidistant test points. The
number of measured values is 588, corresponding to a time range of 0 bit to 146 ¾ bit.
The calculation of current, average, and mmax (Min./Max.) results is explained in chapter 3 (see display mode ).
READ:SUBarrays:MODulation[:PERRor]:EPSK[:CURRent]? Subarray Results
READ:SUBarrays:MODulation[:PERRor]:EPSK:AVERage?
READ:SUBarrays:MODulation[:PERRor]:EPSK:MMAXimum?
Start single shot measurement and return results
⇒
RUN
FETCh:SUBarrays:MODulation[:PERRor]:EPSK[:CURRent]?
FETCh:SUBarrays:MODulation[:PERRor]:EPSK:AVERage?
FETCh:SUBarrays:MODulation[:PERRor]:EPSK:MMAXimum?
Read meas. results (unsynchronized)
⇒
RUN
SAMPle:SUBarrays:MODulation[:PERRor]:EPSK[:CURRent]?
SAMPle:SUBarrays:MODulation[:PERRor]:EPSK:AVERage?
SAMPle:SUBarrays:MODulation[:PERRor]:EPSK:MMAXimum?
Read results (synchronized)
⇒
RUN
Ret. values per subrange Description of parameters Def. value Def. unit FW vers.
100.0 deg to+ 100.0 deg,
... ,
–100.0 deg to+ 100.0 deg 1
st
value for phase error
...
xth value for phase error
NAN
...
NAN deg
...
deg V2.15
Description of command
These commands are always queries. They measure and return the phase error versus time in the subranges
defined by means of the
CONFigure:SUBarrays:MODulation[:PERRor]:EPSK
command. In the default
setting of the configuration command the
READ:SUBarrays..., FETCh:SUBarrays..., and SAM-
Ple:SUBarrays...
command group is equivalent to the
READ:ARRay..., FETCh:ARRay..., and SAM-
Ple:ARRay...
command group described above.
The
CONFigure:SUBarrays:MODulation[:PERRor]:EPSK
command defines a maximum of 32 subranges.
If one of the statistical modes
(ARIThmetical, MINimum, MAXimum)
is set, only one value is returned per
subrange.
The calculation of current, average, minimum, and maximum results is explained in chapter 3 (see display
mode ).
深圳德标仪器
135-1095-0799