N9030B PXA Signal Analyzer Service Guide 43
Overview
Service Equipment You Will Need
The interconnect cable should NEVER be disconnected once the loss
characterization is performed.
Table 1-2 1 dB Step Attenuator
Nominal Attenuation
(dB)
Attenuator Section Recommended Uncertainty
(dB)
#1
(1 dB)
#2
(2 dB)
#3
(4 dB)
#4
(4 dB)
0 Off Off Off Off 0 (Reference)
1 On Off Off Off < 0.005
2 Off On Off Off < 0.005
3 On On Off Off < 0.005
4 Off Off
On
a
Off < 0.005
5OnOff
On Off < 0.005
6OffOn
On Off < 0.005
7OnOn
On Off < 0.005
8 OffOffOnOn< 0.005
9 On Off On On < 0.005
a. TME requires that Section 3 be characterized.
Table 1-3 10 dB Step Attenuator
Nominal Attenuation
(dB)
Attenuator Section Recommended Uncertainty
(dB)
#1
(10 dB)
#2
(20 dB)
#3
(40 dB)
#4
(40 dB)
0 Off Off Off Off 0 (Reference)
10 On Off Off Off < 0.010
20 Off On Off Off < 0.015
30 On On Off Off < 0.020
40 Off Off
On
a
Off < 0.025
50 On Off
On Off < 0.030
60 Off On
On Off < 0.035
70 On On
On Off < 0.040
a. TME requires that Section 3 be characterized.