Rohde & Schwarz R&S SMU200A, Руководство по обслуживанию

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R&S SMU200A Test Procedures
1007.9845.82 1.71
E-12
GSM Edge and GSM Edge Burst
The equipment layout for generating GSM/EDGE signals includes the options R&S B13 (Baseband Main
Module), R&S B10 (Baseband Generator) and R&S K40 (Digital Standard GSM/EDGE).
Test equipment Signal analyzer R&S FSQ including options R&S FSQ-K70 (Vector Signal
Analysis) and R&S FS-K5 (GSM/EDGE) (table 1-1, pos. 24)
Test setup
Connect signal analyzer to RF output of DUT.
Measurement method 1. Set Custom Dig Mod in the baseband; set standard GSM EDGE
here. Perform the measurements with the GSM EDGE
measurement setting of the R&S FSQ.
2. Set standard GSM/EDGE in the baseband. Perform the
measurements with the GSM EDGE measurement setting of the
R&S FSQ.
Measurement 1 Settings on DUT
Level: max. level, refer to data sheet (depending on options)
Frequencies: 910 and 1850 MHz (and 5GHz for R&S B106)
Custom Digital Mod:
State ON
Set acc. To Standard : GSM EDGE
Settings on analyzer
VSA
FREQ CENTER: 910 MHz, 1850 MHz (and 5 GHz for R&S B106)
DIGITAL STANDARD GSM-EDGE EDGE_NB
ADJUST REF LVL
Check EVM in Modulation Accuracy Table
Settings on analyzer
FREQ CENTER: 910 MHz, 1850 MHz (and 5 GHz for R&S B106)
MEAS CHAN PWR ACP
CP /ACP CONFIG
NO. OF ADJ CHAN 3
CHANNEL BANDWIDTH 30 kHz (all entries)
CHANNEL SPACING 200 kHz (all entries)
ADJUST SETTINGS
MEAS CHAN PWR ACP
ADJUST REF LVL
NOISE CORR ON
Check ACP (take the smaller of the two measurement values
UPPER/LOWER in each case):
Adjacent Channel, Alternate Channel, 2nd Alternate Channel