Chapter 2
77
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 2-20 on page 76.
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 Analyzers 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
).
Summary of Contents for NFA Series
Page 114: ...104 Chapter3 Technical Specifications General Specifications...
Page 126: ...116 AppendixA Model N8973A Test Records Measurement Jitter Test Record...
Page 138: ...128 AppendixB Model N8974A Test Records Measurement Jitter Test Record...
Page 152: ...142 AppendixC Model N8975A Test Records Measurement Jitter Test Record...
Page 178: ...168 AppendixD Caring for Connectors Principles of Microwave Connector Care...
Page 184: ...174 Index Index...
