Technical data

2-54 Chapter 2
Performance Tests
12. Receiver Magnitude Dynamic Accuracy
Figure 2-24 Magnitude Dynamic Accuracy, Channel B
17.To set up the dynamic accuracy measurement, press the following:
•
•
•
18.Wait for the sweep to finish, then press .
19.Set the step attenuator to 0 dB.
20.Press .
21.Press . Write the mean value (which appears on the
analyzer’s display) in the column marked “Real Part” in the performance test record.
Note that the analyzer will display units as mU, µU, or nU, which are abbreviations for
10
−3
units, 10
−6
units, and 10
−9
units, respectively.
22.Press . Write the mean value (which appears on the analyzer’s display) in
the column marked “Imaginary Part” in the performance test record. Note that the
analyzer will display units as mU, µU, or nU, which are abbreviations for 10
−3
units,
10
−6
units, and 10
−9
units, respectively.
23.Repeat steps 19 through 22 for each setting of the step attenuator as written in the
performance test record.
24.For each pair of real and imaginary parts calculate the value given by the formula:
10 log
10
[(Real Part)
2
+ (Imaginary Part)
2
]. Write the result in the performance test
record in the “Test Port Measurement” column (column “G”).
Meas
Trans: FWD S21 (B/R)
Marker Fctn
MKR MODE MENU MKR STATS ON
Sweep Setup
TRIGGER MENU SINGLE
Display
DATA → MEMORY DATA/MEM
Sweep Setup
TRIGGER MENU SINGLE
Format
MORE REAL
IMAGINARY