MDO3000 Programmer Manual.pdf - 第998页

Commands Listed in A lphabetical Order Examples WFMOutpre:REF Level? might return 1.0000E-3, indicating a Reference Level of 1 mW . WFMOutpre:SP AN? (Query Only) This query returns the frequency span of the outgoing wave…

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Commands Listed in Alphabetical Order
Syntax
WFMOutpre:PT_
Off?
Related Commands
DATa:SOUrce
Arguments
Arguments are ignored.
Examples
WFMOUTPRE:PT_OFF? might return WFMOUTPRE:PT_OFF 0.
WFMOutpre:PT_ORder? (Query Only)
This query returns the point ordering, which is always linear (included for
compatibility with other Tektronix oscilloscopes).
(See page 2-95, Waveform Transfer Command Group.)
(See page D-1, Wa veform Transfer (WFMOutpre and CURVe Query) Exampl
es.)
Group
Waveform Transfer
Syntax
WFMOutpre:PT_ORder?
Related Commands
DATa:SOUrce
Examples
WFMOUTPRE:PT_ORDER? returns :WFMOUTPRE:PT_ORDER LINEAR.
WFMOutpre:REFLEvel? (Query Only)
This query returns the Reference Level of the outgoing waveform. It appliesonly
to the four frequency domain waveforms (RF Normal, RF Average, RF Max Hold,
and RF Min Hold). The units are in watts.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Waveform Transfer
Syntax
WFMOutpre:REFLEvel?
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-967
Commands Listed in Alphabetical Order
Examples
WFMOutpre:REF
Level?
might return 1.0000E-3, indicating a Reference Level
of 1 mW.
WFMOutpre:SPAN? (Query Only)
This query returns the frequency span of the outgoing waveform. For non-MDO
models, this query always returns 0.0.
The span is the range of frequencies you can observe around the center frequency.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Waveform Transfer
Syntax
WFMOutpre:SPAN?
Examples
RF:SPAN? might return 10.0000E+6, indicating the span is 10MHz.
WFMOutpre:WFId? (Query Only)
This query returns a string that describes several aspects of the acquisition
parameters for the source waveform, including Source, Coupling, Vertical
Scale, Horizontal Scale, Record Length and Acquisition Mode. If the waveform
specified by DATa:SOUrce command is not turned on, an error will be generated.
(See page 2-95, Waveform Transfer Command Group.)
(See page D-1, Waveform Transfer (WFMOutpre and CURVe Query) Examples.)
Group
Waveform Transfer
Syntax
WFMOutpre:WFId?
Related Commands
DATa:SOUrce
Returns
<QString> comprises the following comma-separated fields documented in
the tables below:
2-968 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Table 2-58: Wav
eform Suffixes
Field Description Examples
Source The source ide
ntification string as it appears in
the front-panel scale factor readouts.
“CH1–4”
“Math1
“Ref1–4"
Coupling A string describing the vertical coupling of the
waveform (t
he Source1 waveform in the case of
Dual Waveform Math).
“AC coupling”
“DC couplng
”
“GND coupling”
Ve rt Scale A string containing the vertical scale factor of
the unzoomed waveform. The numeric portion
will alway
s be four digits. The examples cover
all supported units.
“100.0 mV/div”
“20.00 dB/div”
“45.00 deg
/div”
“785.4 mrad/div”
“500.0 μVs/div”
“10.00 kV/
s/div”
“200.0 mV/div”
“50.00 unk/div”
Horiz S cale A string containing the horizontal scale factor of
the unzo
omed waveform. The numeric portion
will always be four digits. The examples cover
all supported units.
“100 ms/div”
“10.00 k
Hz/div”
Record Length
A string containing the number of waveform
points
available in the entire record. The
numeric portion is given as an integer.
“1000 points”
Acquis
ition Mode
Astrin
g describing the mode used to acquire the
waveform.
“Sample mode”
“Pk Detect mode”
“Enve
lope mode”
“Average mode”
Center Frequency A string containing the c enter frequency value
of the waveform.
“2.400GHz”
Span A string containing the frequency span value of
the
waveform.
“20.00MHz”
Ref
erence Level
Ast
ring containing the reference level value of
the waveform.
“1.000mW”
Ex
amples
WFMOUTPRE:WFID? might return :WFMOUTPRE:WFID " Ch1, DC
coupling,100.0mvolts/div,500.0µs/div, 1000 points, Sample
mode"
WFMOutpre:WFMTYPe? (Query Only)
This query returns the type of the outgoing waveform. RF_FD indicates an RF
frequency domain waveform; RF_TD indicates an RF time domain waveform;
ANALOG indicates Channel 1–4 or the Math waveform. The default is analog.
For non-MDO models, this query always returns ANALOG.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-969