Spectrum Master Programming Manual : TDSCDMA Commands : [:SENSe] Subsystem
 
[:SENSe] Subsystem
The commands in this subsystem relate to device‑specific parameters, not signal‑oriented parameters.
[:SENSe]:DEMod:CDPData:UNITs RELative|ABSolute
[:SENSe]:DEMod:CDPData:UNITs?
Title
Code Domain Data Unit Type
Description
Sets the Code Domain Power unit type. The query form returns either a “REL” for relative units, or an “ABS” for absolute units in Ascii (without the double quotes).
Default Value
RELative
Range
RELative, ABSolute
Front Panel Access
Measurements, Demodulator, CDP Data, CDP Units
[:SENSe]:DEMod:MODType Auto|QPSK|8PSK|16QAM
[:SENSe]:DEMod:MODType?
Title
Modulation Type
Description
This command sets the Data Slot Modulation Type. Options are: auto‑detection, assumed QPSK, assumed 8PSK, assumed 16QAM. The query version of this command returns the current setting.
Default Value
Auto
Range
Auto|QPSK|8PSK|16QAM
Front Panel Access
Setup, More, Modulation Type
[:SENSe]:DEMod:MUSer Auto|2-16 (even)
[:SENSe]:DEMod:MUSer?
Title
Max Users
Description
Sets the Walsh codes.
Default Value
Auto
Range
Auto|2 to 16 (even numbers only)
Front Panel Access
Setup, Max Users
[:SENSe]:DEMod:SCRamblingcode Auto|0-127
[:SENSe]:DEMod:SCRamblingcode?
Title
Scrambling Code
Description
This command sets the Scrambling/Midamble Code of downlink data slot to be demodulated.
Default Value
Auto
Range
Auto|0 to 127
Front Panel Access
Setup, Scrambling Midamble Code
[:SENSe]:DEMod:SPRFactor Auto|16|1
[:SENSe]:DEMod:SPRFactor?
Title
Spread Factor
Description
This command sets the spreading factor of the downlink data slot to be demodulated.
Default Value
Auto
Range
Auto|16|1
Front Panel Access
Setup, More, Spreading Factor
[:SENSe]:DWPTs Auto|On|Off
[:SENSe]:DWPTs?
Title
DwPTS
Description
This command sets the Downlink Pilot Time Slot. Options are: auto‑detection, assumed ON or assumed OFF.
The query form of this command will returns the current setting.
Default Value
Auto
Range
Auto|On|Off
Front Panel Access
Setup, More, DwPTS
[:SENSe]:FREQuency:CENTer <freq>
[:SENSe]:FREQuency:CENTer?
Title
Center Frequency
Description
Sets the center frequency. Note that changing the value of the center frequency will change the value of the coupled parameters Start Frequency and Stop Frequency. It may also change the value of the span.
Parameter
<freq>
Default Value
2.01 GHz
Default Unit
Hz
Range
2.5 MHz to 2.7 GHz
Front Panel Access
Freq, Center Freq
[:SENSe]:FREQuency:SIGStandard:CHANnel <number>
[:SENSe]:FREQuency:SIGStandard:CHANnel?
Title
Channel Selection
Description
Sets the channel number for the selected signal standard.
Parameter
<number>
Front Panel Access
Freq, Channel
[:SENSe]:FREQuency:SIGStandard:NAMe <string>
[:SENSe]:FREQuency:SIGStandard:NAMe?
Title
Signal Standard
Description
Selects the desired signal standard from the list. The <string> argument is the name of the desired signal standard as displayed in the instrument’s current signal standard list. The list can be displayed on the instrument by choosing the Signal Standard submenu button in the Freq menu. The list can also be downloaded remotely and viewed using Anritsu Master Software Tools. For example, if the desired Signal Standard is P‑GSM 900 - Uplink then the value of the <string> argument would be “P‑GSM 900 - Uplink”.
The query form of this command will return the name of the currently‑selected Signal Standard on the list.
Parameter
<string>
Front Panel Access
Freq, Signal Standard
[:SENSe]:NUMCarriers 1|3
[:SENSe]:NUMCarriers?
Title
Number of Carriers
Description
This command sets the number of main/center TD‑SCDMA carriers, for multicarrier configuration. The query version returns the current setting.
Default Value
1
Range
1|3
Front Panel Access
Setup, More, Number of Carriers
[:SENSe]:PFail <test set>
[:SENSe]:PFail?
Title
PASS/FAIL Test Selection
Description
Selects the active test set to be used in subsequent PASS/FAIL measurements. The <test set> value must correspond to a test set that is defined in the test set list. To view the list on the instrument, go into the “Measurement” menu, press the “Pass/Fail Mode” key, and then press the “Select Pass/Fail Test” submenu. Alternatively, the list can be retrieved remotely and viewed using the Anritsu Master Software Tools. The <test set> argument is a 1‑based index of the position of the desired Pass/Fail test set in the instrument’s current Pass/Fail test set list. For example, if the desired Pass/Fail test is the 3rd item on the list then the value of the <test set> argument would be 3.
When using the query form of the command, the return value is the currently selected test set number. If there is not a valid test set selected, the return value is “–1” (negative 1).
Parameter
<test set>
Related Command
:CONFigure PFail
Front Panel Access
Measurements, Pass Fail/Mode, Select Pass/Fail Test
[:SENSe]:POWer[:RF]:RANGe:AUTO OFF|ON|0|1
[:SENSe]:POWer[:RF]:RANGe:AUTO?
Title
Automatic Amplitude Range
Description
Sets the automatic amplitude range. Setting the value to ON or 1 will result in the amplitude range being coupled to the detected input signal level. Setting the value to OFF or 0 will result in the input attenuation being uncoupled from the input signal level. That is, changing the input signal level will not change the amplitude range. When this command is issued, the amplitude range itself will not change. The default value is ON. That is, sending :SENS:POW:RANG:AUTO is equivalent to sending :SENS:POW:RANG:AUTO ON.
Parameter
OFF|ON|0|1
Parameter Type
<boolean>
Default Value
ON
Related Command
[:SENSe]:POWer[:RF]:RANGe
Front Panel Access
Amplitude, Auto Range
[:SENSe]:POWer[:RF]:RANGe[:IMMediate]
Title
Amplitude Range
Description
Recalculates amplitude range. Note that issuing this command will set the automatic dynamic range OFF.
Related Command
[:SENSe]:POWer[:RF]:RANGe:AUTO
Front Panel Access
Amplitude, Adjust Range
[:SENSe]:SLOTselection Auto|0-6
[:SENSe]:SLOTselection?
Title
Slot Selection
Description
Sets the Walsh codes.
Default Value
Auto (7)
Range
Auto, 0 to 6
Front Panel Access
Setup, Slot Selection
[:SENSe]:SWEep:SPEed FAST|NORM|SLOW
[:SENSe]:SWEep:SPEed?
Title
Measurement Speed
Description
Sets the measurement speed. The query form returns either “FAST”, “NORM”, or “SLOW” in Ascii (without the double quotes).
Parameter
FAST|NORM|SLOW
Parameter Type
<char>
Default Value
Norm
Range
FAST, NORM, SLOW
Front Panel Access
Setup, Meas Speed
[:SENSe]:SYDLcode Auto|0-31
[:SENSe]:SYDLcode?
Title
Sync‑DL Code
Description
This command sets the Sync‑DL code of the Downlink Pilot Time Slot used in subframe sync.
Default Value
Auto (32)
Range
Auto, 0 to 31
Front Panel Access
Setup, SYNC‑DL Code
[:SENSe]:TAU:OFFSet <integer>
[:SENSe]:TAU:OFFSet?
Title
Tau Offset
Description
Sets the Tau offset in microsecond.
Default Value
0
Range
–5000000 to +5000000
Front Panel Access
Setup, Trigger, Tau Offset
[:SENSe]:TRIGger NOTRig|GPS|EXT
[:SENSe]:TRIGger?
Title
External Trigger
Description
Sets the external trigger. The query form returns either “NOTRIG”, “GPS”, or “EXT” in Ascii (without the double quotes).
Default Value
No Trig
Range
NOTRig, GPS, EXT
Front Panel Access
Setup, Trigger, Trigger Type
[:SENSe]:ULSWitchpoint 0-6
[:SENSe]:ULSWitchpoint?
Title
Uplink Switch Point
Description
Index of the last downlink slot in the subframe.
Default Value
3
Range
0 to 6
Front Panel Access
Setup, Uplink Switch Point