Agilent Technologies 4395A, Руководство по обслуживанию, Страница: 29 / 343

PERF ORMANCE TESTS
The analyzer's p erformance tests consist of the 21 tests listed in T able 1-1. These tests v erify
that the analyzer's p erformance meets the guaranteed sp ecications. See the Op er ation
Manual for the sp ecications.
The analyzer's p erformance is categorized in to t w o groups; p erformance in the net w ork
analyzer mo de and p erformance in the sp ectrum analyzer mo de. The third column in
T able 1-1 indicates to whic h group the listed p erformance test b elongs.
All tests can b e p erformed without access to the in terior of the instrumen t. The p erformance
tests can b e used to p erform incoming insp ection, and to v erify that the analyzer meets
p erformance sp ecications after repair.
T able 1-1. P erformance T ests
T est Numb er T est Name Category
1
1 F requency Accuracy T est NA
2 Source Lev el Accuracy/Flatness T est NA
3 Non-sw eep Linearit y T est NA
4 P o w er Sw eep Linearit y T est NA
5 Harmonics/Non-harmonic T est NA
6 DC Bias T est (Option 001) NA
7 Receiv er Noise Lev el T est NA
8 Input Crosstalk T est NA
9 Input Imp edance T est NA
10 Absolute Amplitude Accuracy T est NA
11 Magnitude Ratio/Phase Dynamic Accuracy T est NA
12 Magnitude Ratio/Phase F requency Resp onse T est NA
13 Displa y ed Av erage Noise Lev el T est SA
14 Amplitude Fidelity T est SA
15 Input A tten uator Switc hing Uncertain t y T est SA
16 Noise Sidebands T est SA
17 Amplitude Accuracy/F requency Resp onse T est SA
18 Second Harmonic Distortion T est SA
19 Third Order In termo dulation Distortion T est SA
20 Other Spurious T est SA
21 Residual Resp onse T est SA
1 : NA: Net w ork Analyzer Mo de, SA: Sp ectrum Analyzer Mo de
The test n um b ers in T able 1-1 are n um b ered according to the recommended sequence of
p erforming tests. When p erforming more than one p erformance test, p erform them in the
order listed in T able 1-1 . The rst failed test indicates the problem y ou should troublesho ot
rst.
If the p erformance tests indicate that the analyzer is not op erating within the sp ecied
limits, c hec k the test setup. If the test setup is correct, see the A djustments c hapter or the
T r oublesho oting c hapter for corrective action.
Note
Allow the analyzer to w arm up for at least 30 min utes b efore y ou execute an y
of the p erformance tests.
P erform all p erformance tests in an ambien t temp erature of 23 6 5 C.
General Information 1-3