MDO3000 Programmer Manual.pdf - 第610页
Commands Listed in A lphabetical Order RF:RF_PHASe: WRAP:DEGrees Sets or returns the number of degrees to wrap the RF_PHASe time domain trace . The value can range from –180.0 to 54,000.0 degrees. The default is 360.0 de…
Commands Listed in Alphabetical Order
Conditions
MDO4000/B/C mo
dels only.
Group
RF
Syntax
RF:RF_PHASe:VERTical:POSition <NR3>
RF:RF_PHASe:VERTical:POSition?
Related Commands
RF:RF_PHASe:VERTical:SCAle
Arguments
<NR3> is a floating point number that specifies the vertical position.
Examples
RF:RF_PHASe:VERTical:POSition —1 sets the vertical position of the RF
Phase vs. Time trace to –1 divisi
on.
RF:RF_PHASe:VERTical:POSition? might return 0.0E+0, indicating a
vertical position of 0.
RF:RF_PHASe:VERTical:SCAle
This command specifies the vertical scale for RF Phase vs. Time trace. For a signal
with constant amplitude, increasing the scale causes the waveform to be displayed
smaller. Decreasing the scale causes the waveform to be displayed larger.
Conditions
MDO4000/B/C models only.
Group
RF
Syntax
RF:RF_PHASe:VERTical:SCAle <NR3>
RF:RF_PHASe:VERTical:SCAle?
Related Commands
RF:RF_PHASe:VERTical:POSition
Arguments
<NR3> is a floating point number that specifies the vertical scale.
Examples
RF:RF_PHASe:VERTical:SCAle 50 sets the vertical scale to 50
degrees/division.
RF:RF_PHASe:VERTical:SCAle? might return 50.0000, indicating that the
vertical scale has been set to 50 degrees/division.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-579
Commands Listed in Alphabetical Order
RF:RF_PHASe:
WRAP:DEGrees
Sets or returns the number of degrees to wrap the RF_PHASe time domain trace.
The value can range from –180.0 to 54,000.0 degrees. The default is 360.0
degrees and t
he resolution is 180.0 degrees.
Conditions
MDO models only
Group
RF
Syntax
RF:RF_PHASe:WRAP:DEGrees?
RF:RF_PHASe:WRAP:DEGrees <NR3>
RF:RF_PHASe:WRAP:STATE
Sets or returns the state of the phase wrap control for the RF_PHASE time domain
trace. The default is 1, meaning that wrapping the RF_PHASe time domain
trace is enabled.
Conditions
MDO models only
Group
RF
Syntax
RF:RF_PHASe:WRAP:STATE?
RF:RF_PHASe:WRAP:STATE <Boolean>
RF:RF_V_TIMe:BANDWidth
Sets or returns the RF versus time bandwidth as an NR3 value in Hz. This is the
same as the "RF v T BW" readout, which is displayed when at least one of the
RF Versus Time traces is on.
Conditions
MDO4000/B/C only
Group
RF
Syntax
RF:RF_V_TIMe:BANDWidth?
RF:RF_V_TIMe:BANDWidth
2-580 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
RF:SCAle
This command specifies the overall vertical scale setting of the frequency domain
window. The lower limit is 0.1 dB/division. The upper limit is 100dB/division.
The vertical
scale is adjustable in a 1–2–5 sequence.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
RF
Syntax
RF:SCAle <NR3>
RF:SCAle?
Arguments
<NR3> is a floating point number.
Examples
RF:SCAle 10 sets the vertical scale to 10 dB/division.
RF:SCAle? might return 10.000, indicating that the vertical scale has been set
to 10 dB/division.
RF:SPAN
This command specifies the span setting. The span is the range of frequenciesthat
can be observed around the center frequency. This is the width of the frequency
domain trace, which is equal to the stop frequency minus the start frequency.
The maximum span varies according to the oscilloscope model. For the
4000 series models, the maximum span is either 3 GHz or 6 GHz. For the
MDO3000 series models, the maximum span matches the analog bandwidth
rating; however, if the MDO3SA option is installed, then the maximum span
is 3 GHz.
NOTE. For the parameters RF:STARt, RF:STOP, RF:FREQuency and RF:SPAN,
when any one of the parameters is changed, the following relationship is enforced:
START = FREQ – SPAN/2
STOP = FREQ + SPAN/2
FREQ = (START + STOP)/2
SPAN = STOP – START
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-581