Agilent Technologies E5500A User Manual page 334

NOTE
Figure 12-12
Figure 12-13
NOTE
The carrier-to-sideband ratio

C percentAM
---- - ----------------------------- -
= 20 log

sb 100
Measuring the Carrier-to-Sideband Ratio
4. Reconnect the AM detector and enter the carrier-to-sideband ratio and
modulation frequency.
Measuring the Calibration Constant
5. Measure the AM detector calibration constant.
6. Turn off AM.
7. Measure noise data and interpret the results.
The quadrature meter should be at zero volts due to the blocking capacitor at
the AM detector's output.
Agilent Technologies E5500 Phase Noise Measurement System 12-13
AM Noise Measurement Fundamentals
Method 2: Double-Sided Spur
C
for AM is:
-----
sb

= 6dB
