Table 6. 1 M
Ω
Passband Amplitude Flatness and Bandwidth Verification (Continued)
Config
Sample
Rate
(S/s)
Vertical
Range
(V
pk-pk
)
Test Point
As-
Found
Limits
(dB)
As-Left
Limits
(dB)
Measurement
Uncertainty
(dB)
4
Frequency
(MHz)
Amplitude
(dBm)
134
1 G
100 V
45.1
9
±0.7
±0.55
±0.110
135
1 G
100 V
60.1
9
±0.7
±0.53
±0.110
136
1 G
100 V
75.1
9
±0.7
±0.51
±0.113
137
1 G
100 V
90.1
9
±0.7
±0.5
±0.111
138
1 G
100 V
100.1
9
±0.7
±0.48
±0.118
139
1 G
100 V
120.1
9
±0.7
±0.49
±0.148
140
1 G
100 V
150.1
9
±0.7
±0.47
±0.130
141
1 G
100 V
170.1
9
±0.7
±0.45
±0.129
142
1 G
100 V
190.1
9
±0.7
±0.41
±0.130
143
1 G
100 V
200.1
9
±0.7
±0.41
±0.136
144
1 G
100 V
285.1
9
-3.0 to
1.0
-2.4 to
0
±0.152
1.
Place the 50 Ω SMA feed-thru terminator between the splitter output and the SMA (m)-
to-BNC (m) adapter of splitter output 2. Connect splitter output 2 of the power sensor
assembly from the
section to channel 0 of the PXIe-5164.
Note
The power sensor assembly must match the configuration used in the
section, in which the power sensor is connected to
splitter output 1 and the signal generator is connected to the input port of the
power splitter.
The following figure illustrates the hardware setup.
4
Measurement uncertainty is based on the following equipment and conditions:
•
Rohde & Schwarz NRP-Z91 at 20 °C to 25 °C.
•
Harmonics from the signal generator are less than -30 dBc.
PXIe-5164 Calibration Procedure
|
© National Instruments
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37
