NI PXIe-5693 Calibration Procedure
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© National Instruments
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42. Close the NI 5693 session.
If the in-band TOI verification procedure determines that the NI 5693 is outside of its limits,
refer to
Worldwide Support and Services
for information about support resources or service
requests.
Verifying Out-of-Band TOI
1.
Connect the RF source 1 RF OUT connector to the low frequency power combiner input
using the SMA (m)-to-SMA (m) cable.
2.
Connect the RF source 2 RF OUT connector to the other low frequency power combiner
input using the SMA (m)-to-SMA (m) cable.
3.
Connect the low frequency power combiner output to the power splitter input using the
SMA (m)-to-SMA (m) cable.
4.
Connect the 20 dB attenuator to the reference output of the power splitter.
5.
Connect power sensor A to the 20 dB attenuator.
6.
Connect the other output of the power splitter to the NI 5693 RF IN connector using the
SMA (m)-to-SMA (m) adapter.
7.
Connect the 10 MHz clock reference output connector on the RF source 1 back panel to
the 10 MHz clock reference input connector on the RF source 2 back panel using the
BNC (m)-to-BNC (m) cable.
8.
Connect the 10 MHz clock reference output connector on the RF source 2 back panel to the
clock reference connector on the spectrum analyzer using the BNC (m)-to-BNC (m) cable.
Table 9.
n-Band TOI Verification Test Limits Preamp Enabled
Frequency
As-Found Limit (dB)
As-Left Limit (dB)
20 MHz to 150 MHz
-2
-1
>150 MHz to 2.5 GHz
-7
-5.8
>2.5 GHz to 3.2 GHz
-5.5
-4.1
>3.2 GHz to 5.5 GHz
-5
-3
>5.5 GHz to 7 GHz
-4.5
-2.9
