These commands return results for the Power versus Time measurement in the RF Channel (RFCH) measurement suite.
Last Updated: August 29, 2007
For more information on the conventions used in the programming examples click here.
Queries the RF Channel measurement suite integrity indicator, and the time and level of the power versus time marker.
If DISPlay:MEASurement:RFCHannel:PVTime:MARKer:STATe[?] is OFF then the marker time and level returns NAN.
Query Range:
RF Channel measurement suite integrity indicator: See Measurement Integrity Indicator.
Power versus Time marker time setting: <nr3> in seconds and 9.91 E+37 (NAN)
Power versus time marker level: <nr3> in dBm and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the power versus time marker position.
TestSet.WriteString("FETCh:RFCHannel:PVTime:MARKer?")
Queries the RF Channel measurement suite integrity indicator, time increment between samples, number of points in the power versus time trace, and an array representing the power versus time trace. The first result in the trace array is at time 0.
Query Range:
RF Channel measurement suite integrity indicator: See Measurement Integrity Indicator.
Time increment between samples: <nr3> in seconds and 9.91 E+37 (NAN)
Number of points in the trace: <nr1>
Power versus Time trace array: <nr3> array in dBm and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Queries the partial power versus time trace results.
TestSet.WriteString("FETCh:RFCHannel:PVTime:TRACe?")
Queries the RF Channel measurement suite integrity indicator, time increment between samples, and the number of points in the power versus time trace. This query is useful if your control program does not have the ability to dynamically allocate the size of arrays. If your control program does have this ability you should use the FETCh:RFCHannel:PVTime:TRACe[:PARTial]? query.
Query Range:
RF Channel measurement suite integrity indicator: See Measurement Integrity Indicator.
Time increment between samples: <nr3> in seconds and 9.91 E+37 (NAN)
Number of points in the trace: <nr1>
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the power versus time time increment and number of array points.
TestSet.WriteString("FETCh:RFCHannel:PVTime:TRACe:PARameter?")
Queries the RF Channel measurement suite integrity indicator and the time and level of each specified offset.
This query allows you to specify what time offsets you want results for. You specify these offsets in a comma separated list. There is no limit to the number of offset times you specify. If you do not specify any offsets a syntax error occurs.
The returned results are time and level pairs measured at each specified time offset. If you request a time offset that is outside the RFCH Measurement Suite's Measurement Interval, then the result returned is that measured at the boundary of the measurement interval. For example, if the measurement interval is set to 10 ms and you request an offset time of 20 ms, the level result that is reported is the level at 10 ms.
Setting Range of <offset times>: <nr3> comma separated array. Units are not allowed and values must be entered in seconds.
Query Range:
RF Channel measurement suite integrity indicator: See Measurement Integrity Indicator.
Comma-separated value pairs (no units) containing time and power level within the following ranges:
Time: <nr3> in seconds and 9.91 E+37 (NAN)
Level: <nr3> in dBm and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the RF Channel power versus time trace at time offsets 10 ms, 20 ms and 30 ms.
TestSet.WriteString("FETCh:RFCHannel:PVTime:TRACe:TIME? 10MS,20MS,30MS")