Chapter 2
59
Test Descriptions
Noise Figure Range and Accuracy
6. Set the frequency to 50 MHz (press the
Frequency/Points
key and
Fixed
Freq
,
5
,
0
,
MHz
).
7. Set the averaging to 101 (press the
Averaging/Bandwidth
key and
Average Mode (Point)
,
Averages
,
1
,
0
,
1
,
Enter
,
Averaging On
).
8. Select the display to meter mode (press the
Format
key and
Format
,
Meter
).
9. Fix the IF Gain (press the
System
key then
More
,
More
and
Service
.
Press
Enter Password
, then
-2010
and
Enter.
Then press
Service
,
IF
Test
and
Fix IF Gain On
. Set the
IF Gain Value
to 16 and press
IF Gain
Value, 1, 6
and
Enter
.
Step 5. Restart the NFA measurement sweep by pressing the
Restart
key.
Step 6. Record the measured P
hot
value in the Worksheet as the -54dB Ref 1
Level.
Step 7. Step the attenuator in 1dB steps from 1 - 11dB recording the measured
P
hot
at each point in the Worksheet as the -55 to -65dB levels. Remember
to press the
Restart
key at each measurement.
Step 8. Set the synthesizer power level to -65dBm (press the
Power Level
key,
then
-
,
6
,
5
,
dB(m)
).
Step 9. Reset the attenuator to 0dB and press the
Restart
key to restart the NFA
sweep.
Step 10. Record the measured P
hot
value in the Worksheet as the -65dB Ref 2
Level.
Step 11. Step the attenuator in 1dB steps from 1 - 11dB recording the measured
Phot at each point in the Worksheet as the -66 to -76dB levels.
Remember to press the
Restart
key at each measurement.
Step 12. Reset the IF Gain (press the
System
key then
More
,
More
and
Service
.
Press
Enter Password
, then
-2010
and
Enter.
Then press
Service
,
IF Test
and
Fix IF Gain Off
).
Step 13. Enter the attenuator metrology data information in the Worksheet
provided as Actual Attenuation using equation 1.
Step 14. Calculate the Measured Attenuation and enter the values in the
Worksheet using equation 2.
Summary of Contents for N8972A
Page 9: ...ix Declaration of Conformity N8972A ...
Page 10: ...x Declaration of Conformity N8973A ...
Page 11: ...xi Declaration of Conformity N8974A ...
Page 12: ...xii Declaration of Conformity N8975A ...
Page 19: ...Contents xix ...
Page 20: ...xx Contents ...
Page 108: ...88 Chapter2 Test Descriptions Measurement Jitter ...
Page 124: ...104 Chapter3 Technical Specifications General Specifications ...
Page 136: ...116 AppendixA Model N8972A Test Records Measurement Jitter Test Record ...
Page 148: ...128 AppendixB Model N8973A Test Records Measurement Jitter Test Record ...
Page 160: ...140 AppendixC Model N8974A Test Records Measurement Jitter Test Record ...
Page 174: ...154 AppendixD Model N8975A Test Records Measurement Jitter Test Record ...