Method 3: Single-Sided-Spur - Agilent Technologies E5500A User Manual

Method 3: Single-Sided-Spur

Advantages
•
Will measure source without modulation capability.
•
Calibration is done under actual measurement conditions so all
non-linearities and harmonics of the AM detector are calibrated out. The
double-sided spur method and the single-sided-spur method are the two
most accurate methods for this reason.
Disadvantages
•
Requires 2 RF sources, which must be between 10 Hz and 40 MHz apart
in frequency.
•
Requires an RF spectrum analyzer for manual measurement of the
signal-to-spur ratio and spur offset.
Procedure
1. Connect circuit as shown in
the Agilent/HP 70420A Option 001 or Agilent/HP 70427A is available,
use one of the connection diagrams described in
Measurement Block Diagrams" on page
Figure 12-18 AM Noise Measurement Setup Using Single-Sided-Spur
2. Measure the power which will be applied to the AM detector. It must be
between 0 and +23 dBm.
Agilent Technologies E5500 Phase Noise Measurement System 12-17
AM Noise Measurement Fundamentals
Method 3: Single-Sided-Spur
Figure 12-6, and tighten all connections. If
"AM Noise
12-3.