MDO3000 Programmer Manual.pdf - 第981页
Commands Listed in Alphabetical Order Syntax WFMInpre:PT_F mt {ENV|Y} WFMInpre:PT_F mt? Related Commands WFMOutpre:PT_Fmt? Arguments ENV specifies that the waveform is to be transmitted in envelope mode as minimum and max…
Commands Listed in Alphabetical Order
WFMInpre:NR_Pt
This command specifies the number of data points that are in the incoming
waveform record to be sent to the oscilloscope using the
CURVe command.
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
Syntax
WFMInpre:NR_Pt <NR1>
WFMInpre:NR_Pt?
Related Commands
CURVe,
DATa,
DATa:STARt,
DATa:STOP,
SAVe:WAVEform,
SAVe:WAVEform:FILEFormat,
WFMOutpre:NR_Pt?
Arguments
<NR1> is the number of data points if WFMInpre:PT_Fmt is set to Y. It is the
number of min-max pairs if WFMInpre:PT_Fmt is set to ENV.
Examples
WFMINPRE:NR_PT 10000 specifies that 10000 data points will be expected.
WFMINPRE:NR_PT ? might return :WFMINPRE:NR_PT 10 000 indicating that
there are 10000 data points in the expected incoming waveform record.
WFMInpre:PT_Fmt
This command specifies the acquisition format of the data points to be sent tothe
oscilloscope using the
CURVE command. This can be Y for YT format, or ENV
for envelope mode (min/max pairs). For YT format, each data value represents a
single waveform data point. For envelope format, each data point represents a
min/max pair, where the minimum value precedes the maximum value.
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
2-950 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Syntax
WFMInpre:PT_F
mt {ENV|Y}
WFMInpre:PT_Fmt?
Related Commands
WFMOutpre:PT_Fmt?
Arguments
ENV specifies that the waveform is to be transmitted in envelope mode as
minimum and maximum point pairs. Only
Y values are explicitly transmitted.
Absolute coordinates are given by:
Xn = XZEro + XINcr (n - PT_Off)
Ynmax = YZEro + YMUlt (ynmax - YOFf)
Ynmin = YZEro + YMUlt (ynmin - YOFf)
Y specifies a normal waveform where one ASCII or binary data point is
transmitted for each point in the waveform record. Only
Y values are explicitly
transmitted. Absolute coordinates are given by:
Xn = XZEro + XINcr (n - PT_Off)
Yn = YZEro + YMUlt (yn - YOFf)
Examples
WFMINPRE:PT_FMT ENV sets the incoming waveform data point format to
enveloped.
WFMINPRE:PT_FMT? might return :WFMIN PRE:PT_FMT ENV indicating that the
waveform is transmitted as minimum and maximum point pairs.
WFMInpre:PT_Off
The set form of this command is ignored. The query form always returns a 0.
(This command is listed for compatibility with other Tektronix oscillos
copes.)
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
Syntax
WFMInpre:PT_Off <NR1>
WFMInpre:PT_Off?
Arguments
Arguments are ignored.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-951
Commands Listed in Alphabetical Order
WFMInpre:REFLevel
This command specifies the Reference Level of the incoming waveform. This
command applies only to frequency domain waveforms. The Reference Level is
adjustable from 10 pico Watts (–140dBm) to 1 Watt (+30dBm).
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Waveform Transfer
Syntax
WFMInpre:REFLevel <NR3>
WFMInpre:REFLevel?
Arguments
<NR3> is a floating point number that specifies the Reference Level of the
incoming waveform, in watts.
Examples
WFMInpre:REFLevel 1E-3 sets the reference level to 1 mW.
WFMInpre:REFLevel? might return 1.0000E-3, indicating a Reference Level
of 1 mW.
WFMInpre:SPAN
This command specifies the frequency span of the incoming RF trace. The span is
the range of frequencies that can be observed around the center frequency.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Waveform Transfer
Syntax
WFMInpre:SPAN <NR3>
WFMInpre:SPAN?
Arguments
<NR3> is a floating point number that can range from 1 kHz to 6 GHz on
MDO4000/B/C series models. On MDO3000 models, the maximum span is
3G
Hz if the MDO3SA option is installed. Without that option, the maximum is
identical to the analog bandwidth - e.g., 500 MHz on an MDO3054 model.
2-952 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual