78
Chapter 2
Test Descriptions
Instrument Noise Figure
Test Procedure
NOTE
Throughout the Instrument Noise Figure Test Procedure the term ‘the
Test Record’ refers to the Instrument Noise Figure Test Record detailed
in the relevant Appendix for the model number being tested
Step 1. Connect the test equipment as shown in Figure 2-21 on page 77.
Step 2. Ensure that the preset is set to factory settings (press the
System
key,
then
More
,
Power On/Preset
,
Power On (Preset)
and
Preset (Factory)
).
Step 3. Press the
Preset
key on the NFA and wait for the preset routine to finish.
Step 4. Load the noise source ENR calibration file from diskette (A:) or from the
NFA’s internal memory (C:). Alternatively, create an ENR file from the
data supplied on the noise source label (refer to the Noise Figure
Anaylzers NFA Series User’s Guide for more details). Do not calibrate
the source. The NFA should display
Uncorrected
in the active window.
Step 5. Configure the NFA as follows:
1. Set the measured result to Noise Figure (press the
Result
key, then
Noise Figure
).
2. Select a single graphical display of Noise Figure (press the
key).
3. Set sweep to single (press the
Sweep
key, then
Sweep Mode: single
).
4. Set the frequency mode to sweep (press the
Frequency/Points
key, then
Freq Mode
and
Sweep
).
5. Set the start frequency (press the
Frequency/Points
key, then
Start
,
1
,
0
,
MHz
).
Содержание N8972A
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Страница 19: ...Contents xix ...
Страница 20: ...xx Contents ...
Страница 31: ...11 2 Test Descriptions This chapter descibes each test required for calibration and performance verification ...
Страница 108: ...88 Chapter2 Test Descriptions Measurement Jitter ...
Страница 124: ...104 Chapter3 Technical Specifications General Specifications ...
Страница 136: ...116 AppendixA Model N8972A Test Records Measurement Jitter Test Record ...
Страница 148: ...128 AppendixB Model N8973A Test Records Measurement Jitter Test Record ...
Страница 160: ...140 AppendixC Model N8974A Test Records Measurement Jitter Test Record ...
Страница 174: ...154 AppendixD Model N8975A Test Records Measurement Jitter Test Record ...