Atec Agilent-8563E - Manual (Page 81)

Performance Tests ESG Family Signal Generators
16. Pulse Modulation On/Off Ratio
4-32 Calibration Guide
16. Pulse Modulation On/Off Ratio
This automated test verifies the pulse modulation on/off ratio. The signal generator is
configured for an external pulse input. The spectrum analyzer measures the RF output
power with and without the external pulse applied. The power difference is the on/off ratio.
NOTE This test does not test the high performance pulse circuitry used in
Option 1E6 instruments. See
“20. Pulse Rise/Fall Time (Option 1E6 only)” on
page 4-36.
Recommended Equipment
• HP/Agilent 8563E Spectrum Analyzer
• HP/Agilent 8491A/B Option 010 Attenuator (10 dB)
• HP/Agilent 33120A Arbitrary Waveform Generator
Equipment Setup
Figure 4-29 Pulse Modulation On/Off Ratio Test Setup