Atec Agilent-8563E - Manual (Page 77)

Performance Tests ESG Family Signal Generators
13. Internal Digital Modulation Quality
4-28 Calibration Guide
13. Internal Digital Modulation Quality
NOTE This test is only required for instruments with UN3, UN4, or UN8.
This automated test verifies the RF modulation quality of the signal generator’s internal
I/Q modulation. A vector signal analyzer is connected to the signal generator’s RF output.
The internal baseband generator modulates the RF carrier in each of the available digital
modulation formats. The vector signal analyzer measures the appropriate error parameter
for the modulation generated (EVM for PHS, PDC and NADC formats; global phase error
for GSM format).
Recommended Equipment
• HP/Agilent 89441A Options AYA, AY9, UFG or UTH Vector Signal Analyzer
Equipment Setup
Figure 4-25 Internal Digital Modulation Quality Test Setup