Keysight NFA Series Performance Verification And Calibration Manual page 114

Instrument's own
Noise Figure
Frequency
10 MHz to < 500 MHz
500 MHz to < 2.3 GHz
2.3 GHz to 3.0 GHz
> 3.0 GHz to 13.2 GHz
>13.2 GHz to 26.5 GHz
Figure 3-1
1. Characteristic values are met or improved on by 90% of instruments with 90% confidence.
Technical Specifications
Noise Figure and Gain
Noise Figure
< 4.9 dB
+ (0.0025 * freq in MHz)
< 7.4 dB
+(0.00135 * freq in MHz)
4.9 dB
+ (0.0015 * freq in MHz)
< 12.0 dB
< 16.0 dB
1
Characteristic Noise Figure at 23°C ± 3°C (10 MHz to 3.0 GHz)
94
Noise Figure over a limited
temperature range of 23
< 4.4 dB + (0.0025 * freq in MHz)
< 5.9 dB + (0.00135 * freq in MHz)
< 2.9 dB + (0.0015 * freq in MHz)
< 10.5 dB
< 12.5 dB
o o
C ± 3 C
Chapter 3