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8
Residual Measurement Fundamentals
Calibration Options
Table 8-6
Acceptable Amplitude Ranges for the Phase Detectors
Phase Detector
50 kHz to 1.6 GHz
Ref Input (L Port)
Signal Input (R Port)
+
15 dBm
0 dBm
to
to
+
+
23 dBm
23 dBm
* Agilent 70420A Phase Noise Test Set Options 001 and 201
8-20
E5500 Phase Noise Measurement System Version A.02.00
Procedure
1
Connect circuit as per
Figure 8-14 Calibration Setup
2
Measure the power level that will be applied to the Signal Input
port of the Agilent 70420A's Phase Detector.
acceptable amplitude ranges for the Agilent 70420A Phase
Detectors.
1.2 to 26.5 GHz
Ref Input (L Port)
+
7 dBm
to
+
10 dBm
3
Using the RF spectrum analyzer or modulation analyzer, measure
the carrier-to-sideband ratio of the phase modulation at the
phase detector's modulated port and the modulation frequency.
The audio calibration source should be adjusted such that the
sidebands are between –30 and –60 dB below the carrier and the
audio frequency is between 50 Hz and 50 MHz. See
Figure
8-14, and tighten all connections.
*
Signal Input (R Port)
0 dBm
to
+
5 dBm
Document Part No. E5500-90024 Ed. 1.0
Table 8-6
shows the
Figure
8-15.
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