The :CALCulate{1-16}[:SELected]:TRANSform:TIME subsystem commands are used to configure and control time domain transformation parameters, time domain displays, gate parameters, and window parameters.
Time Domain, Group Delay, and Reference Plane Subsystems
Related time domain, group delay, and reference place subsystems are:
Query only. The query outputs the alias free range of the time domain transform on the active trace of the given channel.
The default for ALIAsfree depends on the VectorStar instrument model number and the installed frequency option, and is calculated based on the formulas below, where:
• AFT = Alias free time
• ST = The frequency step size
• AFT = 0.5 / ST immediately after reset.
For the following models and options, the ST and the AFT are:
• MS4642A without Frequency Extension: ST = (20 GHz minus 10 MHz) divided by 200, AFT = 5.00250125063E–9 seconds;
• MS4642A with Frequency Extension: ST = (20 GHz minus 70 kHz) divided by 200, AFT = 5.00001750006E– seconds;
• MS4644A without Frequency Extension: ST = (40 GHz minus 10 MHz) divided by 200, AFT = 2.50062515629E–9 seconds;
• MS4644A with Frequency Extension: ST = (40 GHz minus 70 kHz) divided by 200, AFT = 2.50000437501E–9 seconds;
• MS4647A without Frequency Extension: ST = (70 GHz minus 10 MHz) divided by 200, AFT = 1.42877553994E–9 seconds;
• MS4647A with Frequency Extension: ST = (70 GHz minus 70 kHz) divided by 200, AFT = 1.42857285714E–9 seconds.
Query Parameters
<NR3> The output parameter is in Seconds.
Range
–1E-9 to 4E-9
Default Value
The default for ALIAsfree depends on the VectorStar instrument model number and the installed frequency option. See the Description above.
Sets the center time/distance of the range of the time domain transform on the active trace of the given channel. Outputs the center time/distance of the range of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Enters the other value for the DC term of the time domain transform on the active trace of the given channel. Outputs the Other value for the DC Term of the time domain transform on the active trace of the given channel.
Sets the extrapolation method of the time domain transform on the active trace of the given channel. Outputs the extrapolation method of the time domain transform on the active trace of the given channel.
Sets the center time/distance of the gate of the time domain transform on the active trace of the given channel. Outputs the center time/distance of the gate of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Sets the Dolph-Chebyshev gamma value of the time domain transform gate on the active trace of the given channel. Outputs the Dolph-Chebyshev gamma value of the time domain transform gate on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter depends on the display type.
Sets the Kaiser-Bessel beta value of the time domain transform gate on the active trace of the given channel. Outputs the Kaiser-Bessel beta value of the time domain transform gate on the active trace of the given channel.
Turns anti-gating on/off in the time domain transform on the active trace of the given channel. Outputs the anti-gating on/off status in the time domain transform on the active trace of the given channel.
Sets the gate shape of the time domain transform on the active trace of the given channel. The various gate shapes provide different point weighting with resultant changes in the display and its resolution. The available gate shapes are:
• DCHebyshev = Sets a Dolph-Chebyshev window with a trade-off between the side lobe level and resolution. In the DCH, the side lobe level is parameterized in absolute dB where a larger value leads to a wider main lobe width with lower resolution.
• KBEssel = Sets a Kaiser-Bessel window with a trade-off between the side lobe level and resolution. The KBE larger Beta value provides lower side lobes with a wider main lobe width with lower resolution.
• MINimum = This is a rectangular (or null) gate. It will produce the best resolution but the worst side lobe levels.
• NOMinal = The default value which provides about one-half of the resolution with no window but approximately a 30 dB reduction in side lobe levels. This setting advised for mode applications. The NOMinal setting is equivalent to a Hamming gate.
• WIDE = The WIDE gate (Blackman 3 term) will reduce resolution relative to the nominal gate but further reduce side lobe levels.
• MAXimum = The MAXimum gate (Blackman-Harris 4 term) has the poorest resolution of the fixed gates but has the lowest side lobe levels.
Outputs the gate shape of the time domain transform on the active trace of the given channel.
Sets the span time/distance of the gate of the time domain transform on the active trace of the given channel. Outputs the span time/distance of the gate of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Sets the start time/distance of the gate of the time domain transform on the active trace of the given channel. Outputs the start time/distance of the gate of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Outputs the stop time/distance of the gate of the time domain transform on the active trace of the given channel. Sets the stop time/distance of the gate of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Sets the status of the gate of the time domain transform on the active trace of the given channel where:
• ON = The selected gate is turned on and the display adjusted appropriately.
• OFF = The gate is turned off, and the display returns to its prior state.
• DISPLAY = The upper and lower bounds of the gate are shown along with the trace display in its normal state. Use this setting to help position the gate accurately on the trace.
Sets the response of the time domain transform on the active trace of the given channel. Outputs the response of the time domain transform on the active trace of the given channel.
Sets the span time/distance of the range of the time domain transform on the active trace of the given channel. Outputs the span time/distance of the range of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Sets the start time/distance of the range of the time domain transform on the active trace of the given channel. Outputs the start time/distance of the range of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Sets the stop time/distance of the range of the time domain transform on the active trace of the given channel. Outputs the stop time/distance of the range of the time domain transform on the active trace of the given channel.
Cmd Parameters
<NRf> The input parameter is in Seconds or Meters.
Query Parameters
<NR3> The output parameter is in Seconds or Meters.
Range
-999.99 to 999.99 Seconds
-2.99649E11 to 2.99649E11 Meters
Default Value
4.00000000000E-009
Syntax Example
:CALC1:TRAN:TIME:STOP 1.0E-2
:CALC1:TRAN:TIME:STOP?
:CALCulate{1-16}[:SELected]:TRANsform:TIME:TIME?
Description
Query only. Outputs the list of time domain time values on the active trace of the given channel.
Sets the trip length of the time domain transform on the active trace of the given channel. Outputs the trip length of the time domain transform on the active trace of the given channel.
Sets the time domain transform type on the active trace of the given channel. Outputs the time domain transform type on the active trace of the given channel.
Sets the unit used in the time domain transform on the active trace of the given channel. Outputs the unit used in time domain transform on the active trace of the given channel.
Sets the Dolph-Chebyshev gamma value of the time domain transform window on the active trace of the given channel. Outputs the Dolph-Chebyshev gamma value of the time domain transform window on the active trace of the given channel.
Sets the Kaiser-Bessel beta value of the time domain transform window on the active trace of the given channel. Outputs the Kaiser-Bessel beta value of the time domain transform window on the active trace of the given channel.
Sets the time window shape of the time domain transform on the active trace of the given channel. The various time window shapes provide different point weighting with resultant changes in the display and its resolution. The available time window shapes are:
• RECTangular
• NOMinal
• LOWsidelobe
• MINsidelobe
• DCHebyshev
• KBEssel
Outputs the window shape of the time domain transform on the active trace of the given channel.
Sets the number of zoom impulses in the time domain transform on the active trace of the given channel. Outputs the number of zoom impulses in the time domain transform on the active trace of the given channel.
Turns time zoom mode on/off in the time domain transform on the active trace of the given channel. Outputs the time zoom mode on/off status in the time domain transform on the active trace of the given channel.