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102 Chapter 2
Performance Verification Tests
13. Input Attenuation Switching Uncertainty
using the Agilent 8496G programmable attenuator, enter the
calibration data for the section three 40 dB step rather than the section
four 40 dB step.
3. For each Total Nominal Attenuation setting indicated in Table 2-18,
calculate the Total Actual Attenuation from the actual attenuation
Columns for the 1 dB and the 10 dB step attenuators and enter the
result into Column 6 of Table 2-18.
Example for 35 dB total nominal attenuation setting:
Total Actual Attenuation 1 dB Step Attenuator Actual Attenuation
10 dB Step Attenuator Actual Attenuation+
=
1dB Step Attenuator Actual Attenuation 5 dB()5.021 dB=
10 dB Step Attenuator Actual Attenuation 30 dB()29.981 dB=
Total Actual Attenuation 5.998 dB 30.012 dB+ 35.002 dB==
Table 2-18 Actual Attenuation Worksheet
Column 1 Column 2 Column 3 Column 4 Column 5 Column 6
1 dB step
Attenuator
Nominal
Attenuation
(dB)
1 dB step
Attenuator
Actual
Attenuation
(dB)
10 dB step
Attenuator
Nominal
Attenuation
(dB)
10 dB step
Attenuator
Actual
Attenuation
(dB)
Total
Nominal
Atten-
uation
(dB)
Total
Actual
Atten-
uation
(dB)
000
505
01010
51015
02020
52025
03030
53035
04040
54045
05050
55055
06060
56065