Baseband Digital IQ-Output (Option R&S SMU/SMJ-B18) R&S SMU200A
1007.9845.82 1.88
E-12
Measurement Settings on DUT
Custom Digital Mod:
State ON
Data Source Pattern 010101010101
Modulation Type 8PSK
Symbol Rate 20 MHz
Filter RRC (Root-Raised-Cosine)
Roll off 0.22
Clock
Source: External
Mode: Multiple Symbol
Multiplier: 5
Global Settings
Threshold Data Input 1.5 V
Impedance Data Input 50 Ohm
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
Check external clock rate (Measured Extern Clock in Trigger-
Marker-Clock menu) - must be 100 MHz.
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
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 BB 2 x BB
Custom Digital Modulation: trigger and marker function
Number of measurements
1 x 1 x
To Next Page
Loading...
