HP ESA-L1500A, User'S And Calibration Manual

Page: 190 / 326

Chapter 9 189
Performance Verification Tests
Calibration
To perform calibration:
1. Run all performance verification tests listed in column 1 of Table 9-1 .
2. If any of the performance verification tests fail, perform the
appropriate calibration adjustments listed in column 2 of Table 9-1
which corresponds to the failure.
3. Repeat ALL of the performance verification tests listed in column 1
of Table 9-1 if ANY calibration adjustments were made in step 2 .
This will confirm that there is no interaction between adjustments
which could negatively impact board performance.
Table 9-1 lists the performance verification tests and adjustments
needed for calibration. The performance tests are located in the
following pages of this chapter. Adjustments are located in the service
guide.
Table 9-1 Calibration Requirements
Test #
Column 1
Performance Verification Tests
Column 2
Calibration Adjustments
1 10 MHz Reference Accuracy 10 MHz Frequency Reference
Adjustment
2 Resolution Bandwidth Switching
Uncertainty 21.4 MHz IF Calibrator
3 Noise Sidebands None
4 System Related Sidebands None
5 Residual FM None
6 Frequency Span Readout Accuracy None
7 Reference Level Accuracy 21.4 MHz IF Calibrator
8 Scale Fidelity 21.4 MHz IF Calibrator
9 Input Attenuation Switching
Uncertainty Uncorrected Flatness
Corrected Flatness
10 Resolution Bandwidth Accuracy None
11 Frequency Readout and Marker
Count Accuracy None
12 Absolute Amplitude Accuracy 50 MHz Calibrator
13 Frequency Response Uncorrected Flatness
Corrected Flatness
14 Spurious Responses None
15 Gain Compression None