3-40 Keysight N5244A/45A Service Guide
Tests and Adjustments
Performance Tests
3-
3.
The test cable is moved to Port 2.
4.
A calibration is performed between the end of the test cable and Port 1.
The Port 1directivity and source match and the S12 load match are
retrieved from the analyzer.
5.
On some older analyzer models, the reflection tracking and transmission
tracking error terms were also specified. For those models, these error
terms are also retrieved from the analyzer.
6.
This process is repeated for Ports 3 and 4 on 4-port analyzers.
If the Analyzer Fails this Test:
— Failure of the directivity error term is often due to a faulty test port coupler.
Replace the coupler and repeat this test.
— Failure of the source or load match error terms is due to faulty hardware
between the test port and the internal source. Refer to
for instructions on replacing the suspected
faulty component or assembly.
Dynamic Accuracy Test – Version 1
This description applies to all E836xA/B/C and N5230A/C instruments. It also
applies to N5241A/42A/44A/45A instruments with serial numbers less than
xx5240xxxx. For all other instruments, see test version 2.
Function of the Test: To measure the relative power linearity of the analyzer’s
receivers.
Specification Tested: Test Port Input–Dynamic Accuracy
Equipment Used:
— Z5623A Option H01 dynamic accuracy test set
— Power meter
— Power sensor
— Two test cables
Description of the Test:
1.
The analyzer’s test ports are tested separately at a specific CW frequency
and a reference power level of -20 dBm.
2.
The analyzer’s source port is connected to the dynamic accuracy test set’s
source port and the analyzer’s receiving port is connected to the dynamic
accuracy test set’s receiver port. A power sensor is connected to the
dynamic accuracy test set’s power meter port.
Содержание PNA-X N5244A
Страница 10: ...8 Keysight N5244A 45A Service Guide Contents ...
Страница 90: ...3 62 Keysight N5244A 45A Service Guide Tests and Adjustments Adjustments 3 ...
Страница 146: ...4 56 Keysight N5244A 45A Service Guide Troubleshooting Instrument Block Diagrams Sheet 4 4 ...
Страница 155: ...Keysight N5244A 45A Service Guide 5 9 Theory of Operation Synthesized Source Group Operation Figure 5 3 Source Group ...
Страница 174: ...5 28 Keysight N5244A 45A Service Guide Theory of Operation Receiver Group Operation 5 Figure 5 6 4 Port Receiver Group ...
Страница 175: ...Keysight N5244A 45A Service Guide 5 29 Theory of Operation Receiver Group Operation Figure 5 7 2 Port Receiver Group ...
Страница 188: ...5 42 Keysight N5244A 45A Service Guide Theory of Operation Noise Measurement Group Operation Option 029 5 ...
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Страница 505: ...Installation Note Xxxxx xxxxx 3 ...