8-22
Agilent Technologies E5500 Phase Noise Measurement System
Residual Measurement Fundamentals
The Calibration Options
Procedure
1. Connect circuit as per
, and tighten all
connections.
Figure 8-13
Calibration Setup
2. Measure the power level that will be applied to the Signal Input port of
the Agilent/HP 70420A’s Phase Detector. The following chart shows the
acceptable amplitude ranges for the Agilent/HP 70420A Phase
Detectors.
Table 8-6
Acceptable Amplitude Ranges for the Phase Detectors
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.
Phase Detector
50 kHz to 1.6 GHz
1.2 to 26.5 GHz
1
1. Agilent/HP 70420A Phase Noise Test Set Options 001 and 201
Ref Input (L Port)
Signal Input (R
Port)
Ref Input (L Port)
Signal Input (R
Port)
+
15 dBm
to
+
23 dBm
0 dBm
to
+
23 dBm
+
7 dBm
to
+
10 dBm
0 dBm
to
+
5 dBm
