User`s guide

7-46 Agilent Technologies E5500 Phase Noise Measurement System
Absolute Measurement Examples
Free-Running RF Oscillator
Table 7-8 Parameter Data for the Free-Running RF Oscillator Measurement
Step Parameters Data
1 Type and Range Tab
Measurement Type
• Start Frequency
• Stop Frequency
• Minimum Number of Averages
FFT Quality
• Absolute Phase Noise (using a phase locked loop)
•10Hz
•4E+6Hz
•4
•Fast
2 Sources Tab
Carrier Source
• Frequency
• Power
• Carrier Source Output is
connected to:
Detector Input
• Frequency
Reference Source
• Frequency
• Reference Source Power
VCO Tuning Parameters
• Nominal Tune Constant
• Tune Range +/-
• Center Voltage
• Input Resistance
• 10.044 E + 9 Hz
•-4dBm
• Test Set
•444E+6Hz
• 444 E +6 Hz (same as Carrier Source Frequency)
•16dBm
•40E+3Hz/V
•+/-10Volts
•0Volts
•600ohms
3CalTab
• Phase Detector Constant
• VCO Tune Constant
• Phase Lock Loop Suppression
• If Limit is exceeded
• Measure Phase Detector Constant
• Calculate from expected VCO Tune Constant
• Verify calculated phase locked loop suppression
• Show Suppression Graph
4 Block Diagram Tab
• Carrier Source
• Downconverter
• Reference Source
• Timebase
• Phase Detector
• Test Set Tune Voltage
Destination
• VCO Tune Mode
• Manual
• Agilent/HP 70422A
• Agilent/HP 8644B (System Control)
•None
• Automatic Detector Selection
• Reference Source
• DCFM