Agilent Technologies 8510C, Operating And Programming Manual

Page: 55 / 391

Figure 2-8. Return Loss: S
11
LOG MA G
T o measure the insertion loss (S
21
) in LOG MA G format
1. Read the Insertion Loss of the DUT.
a. Press 4 CHANNEL 2 5 4 S21 5 4 LOG MAG 5 4 MARKER 5.
b. Use the RPG knob to p osition the marker at an y p oint on the trace. The measured
Insertion Loss, magnitude v alue at the marker p osition, is display ed ab o v e the graticule,
The frequency v alue is display ed in the active function area. See Figure 2-9 for an
example of a t ypical display .
2. T o read the measured phase angle, press 4
PHASE
5.
3. T o p osition the trace automatically for viewing, press 4 AUTO 5.
Figure 2-9. Insertion Loss: S
21
LOG MA G
2-10 Introductory Measurement Sequence