![Keysight E6640A Measurement Applications User & Programmer Reference Download Page 2117](http://html1.mh-extra.com/html/keysight/e6640a/e6640a_measurement-applications-user-and-programmer-reference_19616452117.webp)
13 Modulation Accuracy (Composite EVM) Measurement
Meas Setup
Preset
15000
State Saved
Saved in instrument state.
Range
15000|30000|60000|120000|240000|480000|960000
Initial S/W Revision
A.07.00
S-CCPCH Code Number (BTS only)
To calculate the EVM value correctly, specifies the code number 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:SPRead <integer>
[:SENSe]:RHO:SCCPch:SPRead?
Example
RHO:SCCP:SPR 255
RHO:SCCP:SPR?
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.
Preset
3
State Saved
Saved in instrument state.
Min
0
Max
255, when [:SENSe]:RHO:SCCPch:SRATe =15000
127, when [:SENSe]:RHO:SCCPch:SRATe =30000
63, when [:SENSe]:RHO:SCCPch:SRATe =60000
31, when [:[:SENSe]:RHO:SCCPch:SRATe =120000
15, when [:SENSe]:RHO:SCCPch:SRATe =240000
7, when [:SENSe]:RHO:SCCPch:SRATe =480000
3, when [:SENSe]:RHO:SCCPch:SRATe =960000
Initial S/W Revision
A.07.00
EVM Minimization by IQ Imbalance
Toggles the I/Q Imbalance Compensation between ON and OFF.
•
ON: The measurement results for EVM, Rho, and Modulation Accuracy (Rho) error are compensated for
I/Q imbalance.
W-CDMA & HSPA Measurement Applications Reference
2117
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 ...