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Table 2-12
Step 4. Set the NFA as follows:
Test Descriptions
Noise Figure Range and Accuracy
1. Ensure the
LOCAL
2. Set the attenuator to 0dB. The settings are as follows:
Switch Driver Attenuator Settings (1 = LED On, 0 = LED Off)
1dB Step Attenuator
0
1
2
3
4
5
6
7
8
9
10
11
1. Ensure that the preset is set to factory settings (press the
Power On (Preset)
2. Press the
key and wait for the routine to finish.
Preset
3. Set the measured result to Phot (press the
4. Set sweep to single (press the
5. Set the frequency mode to fixed (press the
Mode
,
Fixed
).
6. Set the frequency to 50 MHz (press the
58
LED is on.
Attenuator X
1
2
0
0
1
0
0
1
1
1
0
0
1
0
0
1
1
1
0
0
1
0
0
1
1
1
,
and
Power On Preset
Result
key and
Sweep
Frequency/Points
3
0
0
0
0
1
1
1
1
1
1
1
1
key, then
System
).
Preset (Factory)
key and
).
Phot
Sweep Mode (Single)
key and
Frequency/Points
key and
4
0
0
0
0
0
0
0
0
1
1
1
1
,
More
).
Freq
,
Fixed Freq
Chapter 2
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