Baseband Digital IQ-Output (Option R&S SMU/SMJ-B18) R&S SMU200A
1007.9845.82 1.90
E-12
Measurement Settings on test DUT
Custom Digital Mod:
State ON
Data Source External Serial
Modulation Type 8PSK
Symbol Rate 20MHz
Filter RRC (Root-Raised-Cosine)
Roll off 0.22
Clock Source: External
Global Settings
Threshold Data Input 1.5 V
Impedance Data Input 50Ohm
Analog I/Q Output Menu:
Output Type: Single Ended
Load Type: 50 Ohm
PEP: 0.5 V
Settings on signal generator
Frequency: 100 MHz
Level: 0 dBm
I/Q Settings menu:
Source Analog Wideband I/Q Input
State On
Custom Digital Mod:
State ON
Data Source Pattern 01010101 11110111 00001000
Modulation Type 8PSK
Symbol Rate 20 MHz
Filter RRC (Root-Raised-Cosine)
Roll off 0.22
Settings on analyzer:
VSA
FREQ CENTER: 100 MHz
AMPT / REF LEVEL 5 dBm
MODULATION SETTINGS
SYM RATE 20 MHz
MODULATION & MAPPING PSK 8PSK
MODULATION FILTER RRC RRC RRC RRC
ALPHA BT 0.22
Read out the data pattern of the demodulated signal and
compareit with the transmitted pattern. The data-pattern search
function of the R&S FSL can be used for this purpose.
The number of necessary measurement depends on the number of installed RF- and baseband paths,
see following table:
Installed paths
1 x BB 2 x BB
Custom Digital Modulation: trigger and marker function
Number of measurements
1 x 1 x
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