Agilent Technologies N5241A, Руководство по обслуживанию

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Service Guide N5242-90001 3-29
PNA Series Microwave Network Analyzers Tests and Adjustments
N5241A/42A Performance Tests
Performance Tests
The performance tests verify the electrical performance of your N5241A/42A microwave
PNA. These performance tests are included in the analyzer’s firmware with Option 897
and Option 898. Your analyzer is automatically configured for each individual test.
The model numbers of the additional equipment used by these performance tests are
specified under
“Required Service Test Equipment” on page 2-12 .
There are nine tests in the Option 897 or 898 performance test package:
• Source Power Accuracy Test
• Source Maximum Power Output Test
• Source Power Linearity Test
• Frequency Accuracy Test
• Trace Noise Test
• Receiver Compression Test
• Noise Floor Test
• Calibration Coefficients Test
• Dynamic Accuracy Test
Source Power Accuracy Test
Function of the Test: To confirm the accuracy of the source output power of your network
analyzer over its full frequency range.
Specification Tested: Test Port Output–Power Level Accuracy
Equipment Used: A power meter, power sensors, and adapters.
Description of the Test:
1. The analyzer’s output power level is set to 0 dBm.
2. A power sensor is connected to Port 1.
3. The output power is measured at hundreds of CW frequencies across the analyzer’s
frequency range and the values compared to the setting of 0 dBm.
If the Analyzer Fails this Test:
• Perform the “Source Adjustment” on page 3-39 and repeat this test.
• If the analyzer still fails this test, troubleshoot the source section of the analyzer and
then repeat this test. Refer to “Checking the Source Group” on page 4-29 .