Agilent Technologies 4395A - Page 130

15.
INPUT A
TTENUATOR
SWITCHING
UNCERT
AINTY
TEST
Step
Attenuator
Calibration V
alue at
50 MHz
A
tten
uation
Calibration
V
alue
1
10 dB
a1 =
dB
20
dB
a2
=
dB
30
dB
a3
=
dB
40 dB
a4 =
dB
50
dB
a5
=
dB
1 :
Incremental
atten
uation
referenced
to
0
dB
setting.
Input
A
ttenuator Switching
Uncertainty
Input
R
4395A
Input
A
tten
uation
4395A
Reading
[b]
T
est
Result
0
dB
dB
b
0
a4+a5
=
20
dB
dB
b
0
a4+a3
=
30
dB
dB
b
0
a4+a2
=
40
dB
dB
b
0
a4+a1
=
50
dB
dB
b
0
a4
=
Input
A
4395A
Input
Atten
uation
4395A
Reading
[b]
T
est Result
0dB dB b
0
a4+a5
=
20
dB
dB
b
0 a4+a3
=
30 dB dB b 0 a4+a2 =
40 dB dB b 0 a4+a1 =
50 dB dB b 0 a4 =
3-16 Calculation Sheet