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R&S SMU200A
Test Procedures
1007.9845.82
1.73
E-12
Modulation error for WCDMA - 3GPP
The equipment layout for generating the digital modulation signals includes the options R&S B13 (Baseband
Main Module) and R&S B10 (Baseband Generator).
Test equipment
Signal analyzer R&S FSQ including option R&S FSQ-K70
(Vector Signal Analysis) (table 1-1, pos. 24)
Test setup
Connect signal analyzer to RF output of DUT.
Test method
Set Custom Dig Mod to standard WCDMA-3GPP in the baseband.
Perform the measurements with the 3GPP measurement setting of the
R&S FSQ.
Measurement
Settings on DUT
Level:
max. level, refer to data sheet (depending on options)
Frequencies:
2160 MHz (and 5 GHz for R&S B106)
Custom Digital Mod:
State
ON
Set acc. To Standard
: WCDMA-3GPP
Settings on analyzer
VSA
FREQ CENTER: 2160 MHz (and 5GHz for R&S B106)
DIGITAL STANDARD 3G-WCDMA 3G WCDMA_FWD
ADJUST REF LVL
Check EVM in Modulation Accuracy Table
The number of necessary measurement depends on the number of installed RF- and baseband paths, see
following table:
Installed paths
1 x RF
1 x BB
2 x RF
2 x BB
2 x RF
1 x BB
1 x RF
2 x BB
Modulation error 3 GPP FDD
Number of measurements
1x
2x
2 x
2 x
Summary of Contents for R&S SMU200A
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