Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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CMU-K20/21/22/23/24 Connection Control (Signalling only)
1115.6088.12 6.175 E-12
[SENSe:]LEVel:ATTenuation < Mode >
Attenuation
<Mode>
Description of parameters Def. value Def. unit FW vers.
NORMal |
LNOise |
LDIStortion
Mixer level in normal range
Low noise (mixer level 10 dB higher than in normal
setting)
Low distortion (mixer level 10 dB lower than in
normal setting) LNOise
– V1.15
Description of command
This command tunes the RF analyzer for normal setting, low noise level (full dynamic range), or low distortion
(high intermodulation spacing).
[SENSe:]LEVel:DEFault <Enable>
Default Settings
<Enable>
Description of parameters Def. value Def. unit FW vers.
ON |
OFF
All parameters are set to their default values
All or some parameters differ from the default values ON
– V2.00
Description of command
If used as a setting command with the parameter
ON
this command sets all parameters of the subsystem to their
default values (the setting
OFF
causes an error message).
If used as a query the command returns whether all parameters are set to their default values
(ON)
or not
(OFF)
.
Subsystem TRIGger (Trigger Mode)
The subsystem
TRIGger
defines the trigger mode. It corresponds to the
Trigger
tab in the
Connection
Control
menu.
TRIGger[:SEQuence]:SOURce <Source>
Trigger Source
<Source>
Description of parameters Def. value Def. unit FW vers.
SIGNalling |
FRUN |
RFPower |
IFPower
The measurement is triggered by the signalling unit
The measurement is triggered by the TDMA timing (free-
run mode) of the analyzed signal
Wideband RF power trigger
Narrow-band IF power trigger SIGN – V1.15
Description of command
This command defines the source for the trigger event. The settings
RFPower
and
IFPower
require burst signals.
The setting
FRUN
requires burst signals with incorporated training sequence.
TRIGger[:SEQuence]:THReshold:RFPower <Threshold>
Level – RF Power
<Threshold>
Parameter description Def. value Default unit FW vers.
LOW |
MEDium |
HIGH
Low trigger threshold
(RF Max. Level
– 26 dB)
Medium trigger threshold
(RF Max. Level
– 16 dB)
High trigger threshold
(RF Max. Level
– 6 dB)
MEDium – V3.10
Command description
This command sets the RF input signal level at which the measurement is triggered relative to the maximum RF
input level; see
[SENSe:]LEVel:MAXimum
. The setting has effect for trigger source
RFPower
only (see
TRIG:SEQ:SOUR
).
深圳德标仪器
135-1095-0799