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13 Modulation Accuracy (Composite EVM) Measurement
Meas Setup
Active ID auto-detection is performed. However, the result can be 7.5ksps channel if MICH’s two
consecutive demod bits are the same. If this occurs, these 7.5ksps channels are automatically set to be
15ksps channels.
Key Path
Meas Setup, Advanced
Mode
WCDMA
Remote Command
[:SENSe]:RHO:MICH:SPRead <integer>
[:SENSe]:RHO:MICH:SPRead?
[:SENSe]:RHO:MICH:STATe OFF|ON|0|1
[:SENSe]:RHO:MICH:STATe?
Example
RHO:MICH:SPR 4
RHO:MICH:SPR?
RHO:MICH:STAT ON
RHO:MICH:STAT?
Notes
If the PICH Code Number and MICH Code Number are the same, the channel is considered as PICH.
This parameter is meaningful only when Symbol Boundary setting is Auto.
This parameter enables or disables MICH code number setting.
Dependencies
This parameter is available only when Direction is BTS.
Preset
2
OFF
State Saved
Saved in instrument state.
Min
2
Max
255
Initial S/W Revision
Prior to A.02.00
S-CCPCH Symbol Rate (BTS only)
To calculate the EVM value correctly, specifies the symbol rate for S-CCPCH(Secondary Common Control
Physical Channel), which might be modulated with 64QAM, and is hard to detect as correct channelization
code.
Key Path
Meas Setup, Advanced
Mode
WCDMA
Remote Command
[:SENSe]:RHO:SCCPch:SRATe <integer>
[:SENSe]:RHO:SCCPch:SRATe?
Example
RHO:SCCP:SRAT 15000
RHO:SCCP:SRAT?
Notes
This command is effective when [:SENSe]:RADio:DEVice is set to BTS.
This parameter is available only when both W-CDMA HSPA+ option (N9073A–3FP) and HSPA option
(N9073A–2FP) licenses are installed, and HSPA+ option is enabled. Otherwise this key and the SCPI
command are unavailable.
2116
W-CDMA & HSPA Measurement Applications Reference
Summary of Contents for E6640A
Page 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Page 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Page 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Page 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Page 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Page 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Page 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Page 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Page 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Page 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Page 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Page 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Page 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...