76 Chapter 2
Test Descriptions
Instrument Noise Figure
Figure 2-20 Typical plots with limit lines for the N8975A
Related Adjustment
None
Required Test Equipment
Table 2-21 Required equipment for Instrument Noise Figure Test
Equipment description Critical specification for equipment
substitution
Recommended model
Noise source Frequency Range: 10 MHz to 3 GHz
Typical ENR: 4.5 - 6.5 dB
Connection: 3.5 mm (M) or N Type
346A standard or Option
001
Noise source Frequency Range: 10 MHz to
26.5 GHz
Typical ENR: 12.0 - 17.0 dB
Connection: 3.5 mm (M) or N Type
346C