Table of Contents
Advertisement
Figure 150 Phase detector sensitivity
4
5
6
7
Agilent E5505A User's Guide
+15
+5
-5
-15
-140
-150
Approximate phase noise floor (dBc/Hz)
E5505a_phase_det_sensitivity
27 Feb 04 rev 1
Remove the power meter and reconnect the cable from the splitter to the
Signal Input port.
If you are not certain that the power level at the Reference Input port is
within the range shown in the preceding graph, measure the level using the
setup shown in
Figure
input port," on page 212.
Remove the power meter and reconnect the cable from the splitter to the
Signal Input port.
After you complete the measurement set up procedures and begin running
the measurement, the computer will prompt you to adjust for quadrature
(Figure 151
on page 212). Adjust the phase difference at the phase detector
to 90 degrees (quadrature) by either adjusting the test frequency or by
adjusting an optional variable phase shifter or line stretcher. Quadrature is
attained when the meter is set to center scale, zero.
Residual Measurement Fundamentals
-160
-170
f
10kHz
152, "Measuring power at phase detector reference
7
.6
.35
.2
.11
.06
.035
.02
-180
211
Advertisement
Table of Contents
