Technical data

Chapter 2 2-51
Performance Tests
12. Receiver Magnitude Dynamic Accuracy
3. The values in column D result from changing the reference attenuation of the
calibration data of the 8496A to 20 dB.
Calculate the attenuation error values for this column by subtracting the values in
column C from the values in column B. The result is B − C = D.
4. The values in column F result from correcting the expected measurement value by the
amount of attenuator error.
Calculate the values in this column by subtracting the values in column D from the
values in column E. The result is E − D = F.
5. Transfer the values from column F in Table 2-1 to column F in the performance test
record for both receiver channels.
Power Meter Calibration
6. Zero and calibrate the power meter. (Refer to the power meter manual for details on this
procedure.)
7. Connect the equipment as shown in Figure 2-22. Be sure to remove the cable from the B
channel connectors.
Table 2-1 Magnitude Dynamic Accuracy Calculations
A B C D
(B − C)
E F
(E − D)
8496A Attn.
(dB)
Attn. Error
(ref 0 dB)
20 dB Error
Value
Attn. Error
(ref 20 dB)
Expected
Measurement
(dB)
Expected
Measurement
(corrected)
(dB)
00 dB 20
10 10
20 ( ) 0 dB 0 0.00
30 − 10
40 − 20
50 − 30
60 − 40
70 − 50
80 − 60
90 − 70
100 − 80