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14 QPSK EVM Measurement
The quadrature phase shift keying (QPSK) error vector magnitude
(EVM) measurement is a measure of phase and amplitude
modulation quality that relates the performance of the actual signal
compared to an ideal signal as a percentage, as calculated over the
course of the ideal constellation. These phase and frequency errors
are measures of modulation quality for the W-CDMA (3GPP) system,
and can be quantified through QPSK EVM measurements. For
measurement results and views, see
This topic contains the following sections:
"Measurement Commands for QPSK EVM" on page 2352
"Remote Command Results for QPSK EVM Measurement" on page
2353
(Undefined variable: Primary.ProductName)
W-CDMA & HSPA Measurement Applications Reference
2351
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 ...