Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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Common: MODulation[:PERRor] CMU-K20/21/22/23/24
1115.6088.12 6.64 E-12
MODulation[:PERRor]
The subsystem MODulation[:PERRor][:GMSK] measures the modulation parameters (frequency and
phase errors) in GMSK modulation. The subsystem corresponds to the measurement menu Modulation,
application Ext. Phase Err. GMSK, and the associated popup menu Modulation Config , however, it
does not provide the I/Q Imbalance and the Origin Offset in the I/Q constellation diagram .
If results for the I/Q Imbalance and the Origin Offset are needed, the slower MODulation:XPERror
measurement must be used; see p. 6.72 ff.
Note: GMSK and 8PSK modulation
The keywords
[:GMSK]
and
:EPSK
in the remote control commands denote GMSK and
8PSK modulation, respectively. The
:EPSK
commands in Signalling measurements are in-
cluded in firmware versions V3.05 and higher. The firmware version numbers quoted in the
command tables refer either to GMSK modulation or EPSK modulation in Non Signalling
mode.
Control of Measurement – Subsystem MODulation[:PERRor][:GMSK]
The subsystem MODulation[:PERRor][:GMSK] controls the modulation measurement. It corresponds to
the softkey Ext. Phase Err. GMSK in the measurement menu Modulation .
INITiate:MODulation[:PERRor][:GMSK] Start new measurement
⇒
RUN
ABORt:MODulation[:PERRor][:GMSK] Abort running measurement and switch off
⇒
OFF
STOP:MODulation[:PERRor][:GMSK] Stop measurement after current stat. cycle
⇒
STOP
CONTinue:MODulation[:PERRor][:GMSK] Next measurement step (only stepping mode )
⇒
RUN
Description of command FW vers.
These commands have no query form. They start and stop the modulation measurement, setting it
to the status indicated in the top right column. V1.15
CONFigure:MODulation[:PERRor][:GMSK]:EREPorting < Mode > Event Reporting
<Mode> Description of parameters Def. value Def. unit FW vers.
SRQ |
SOPC |
SRSQ |
OFF Service request
Single operation complete
SRQ and SOPC
No reporting
OFF – V1.15
Description of command
This command defines the events generated when the measurement is terminated or stopped (event reporting,
see chapter 5 of CMU manualCMU manual).
深圳德标仪器
135-1095-0799