3-24 Keysight N5227B Service Guide
Tests and Adjustments
System Verification
3-
choose to load an existing recent calibration that was created by the
verification process. If necessary, refer to the analyzer’s on-line embedded help
for information on storing and recalling calibrations.
For each verification device, the analyzer reads a file from the verification disk
and sequentially measures the magnitude and phase for all four S-parameters.
Equipment Used in the System Verification Procedure
Cable Substitution
The test port cables specified for the network analyzer system have been
characterized for connector repeatability, magnitude and phase stability with
flexing, return loss, insertion loss, and aging rate. Since test port cable
performance is a significant contributor to the system performance, cables of
lower performance will increase the uncertainty of your measurement. Refer to
the plots in the cable tests (earlier in this chapter) that show the performance
of good cables. It is highly recommended that the test port cables be regularly
tested.
For system verification to perform correctly, it is NECESSARY that the
verification devices be measured with their female connectors connected
to port 1 or 3 and their male connectors connected to port 2 or 4.
Although the performance for all S-parameters are measured, the S
11
and
S
22
phase uncertainties for the attenuators and airlines are less important
for verifying system performance. Therefore, the limit lines will not appear
on the printout.
Equipment
Type
1.85 mm
2.4 mm
3.5 mm
Type-N
Calibration kit
85058B/E
N4694A ECal
85056B/D
N4692A ECal
85052B, C, D
N4691 ECal
85054B/D
N4690A E-cal
Verification kit
85058V
85057B
85053B
85055A
Cables
N4697E
85133C/D/E/F
Single cable: 85134E
Cable pair: 85134F
Single cable: 85135E (2.4 mm NMD
to 7 mm)
Cable pair: 85135F (2.4 mm NMD
to 7 mm)
Adapters
None required
None required
None required
With single cable: an 85130E
adapter and a 7mm to Type-N
adapter from the 85054B
calibration kit.
With cable pair: Two 7mm to
Type-N adapters from the 85054B
calibration kit.
Содержание N5227B
Страница 26: ...2 8 Keysight N5227B Service Guide General Product Information Keysight Support Services and Assistance 2...
Страница 176: ...5 40 Keysight N5227B Service Guide Theory of Operation Receiver Group Operation 5 Figure 5 17 4 Port Receiver Group...
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Страница 189: ...Keysight N5227B Service Guide 6 5 Replaceable Parts Rebuilt Exchange Assemblies Figure 6 1 Module Exchange Procedure...
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Страница 237: ...Keysight N5227B Service Guide 6 53 Replaceable Parts Replaceable Parts Listings Figure 6 21 Bottom RF Cables Option 219...
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