User`s guide

7-50 Agilent Technologies E5500 Phase Noise Measurement System
Absolute Measurement Examples
RF Synthesizer using DCFM
a. From the Define menu, choose Measurement; then choose the
Sources tab from the Define Measurement window.
b. Enter the carrier (center) frequency of your UUT (5 MHz to 1.6
GHz). Enter the same frequency for the detector input frequency.
c. Enter the VCO (Nominal) Tuning Constant (see Table 7-10).
d. Enter the Tune Range of VCO (see Table 7-10).
e. Enter the Center Voltage of VCO (see Table 7-10).
f. Enter the Input Resistance of VCO (see Table 7-10).
Table 7-10 Tuning Characteristics for Various Sources
VCO Source
Carrier
Freq.
Tuning Constant
(Hz/V)
Center
Voltage
(V)
Voltage Tuning
Range (
± V)
Input
Resistance
(Ω)
Tuning
Calibration
Method
Agilent/HP 8662/3A
EFC
DCFM
υ
0
5E–9xυ
0
FM Deviation
0
0
10
10
1E + 6
1 K (8662)
600 (8663)
Measure
Compute
Compute
Agilent/HP 8642A/B FM Deviation 0 10 600 Compute