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Figure 7-35 Enter Source Information
Table 7-14 Tuning Characteristics for Various Sources
VCO Source
Carrier
Freq.
Agilent 8662/3A
υ
EFC
DCFM
Agilent 8642A/B
Agilent 8644B
Document Part No. E5500-90024Ed. 1.0
For example, to calculate the Tuning Constant value to enter for
EFC tuning when the center frequency is 300 MHz:
G
(5 E - 9) X (300 E + 6) = (1500 E - 3) = 1.5
d
Enter the Tune Range of VCO
e
Enter the Center Voltage of VCO (see
f
Enter the Input Resistance of VCO (see
Tuning Constant
(Hz/V)
5 E – 9 x υ
0
0
FM Deviation
FM Deviation
FM Deviation
Absolute Measurement Examples
(Table
Center
Voltage Tuning
Range ( ± V)
Voltage
(V)
0
10
0
10
0
10
0
10
E5500 Phase Noise Measurement System Version A.02.00
RF Synthesizer using EFC
7-14).
Table
7-14).
Table
7-14).
Input
Tuning
Resistance
Calibration
( Ω)
Method
1E + 6
Measure
1 K (8662)
Compute
600 (8663)
Compute
600
Compute
600
Compute
7
7-53
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