Keysight NFA Series - Page 81

Chapter 2 61
Test Descriptions
Noise Figure Range and Accuracy
Table 2-14 Noise Figure Range and Accuracy Test Worksheet
Attenuator
Step Size (dB)
Input
Level
(dBm)
Measured
Phot (dB)
Range
(dB)
Actual
Attenuation (dB)
Equation 1
Measured
Attenuation (dB)
Equation 2
0 -54 Ref 1 Ref 1 Ref 1 Ref 1 Ref 1
----- ----- ----- 0.125
----- ----- ----- 0.5
1-55 1
2-56 2
3-57 3
4-58 4
5-59 5
6-60 6
7-61 7
8-62 8
9-63 9
10 -64 10
11 -65 11
0 Ref 2 -65 Ref 2 Ref 2 Ref 2 Ref 2 Ref 2
1-66 12
2-67 13
3-68 14
4-69 15
5-70 16
6-71 17
7-72 18