Displayed Average Noise Level (Danl) - Agilent Technologies X Series Manual

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Displayed Average Noise Level (DANL)

Test Limits (with 0 dB input attenuation)
See Table 2-1 on page 17 for values.
The Displayed Average Noise Level (DANL) of the signal analyzer is measured across a 10 kHz
frequency span at several center frequencies. The analyzer input is terminated into a 50Ω load. A test is
performed to assure the measurement is not performed in the presence of a residual response. The
measurement is then averaged, and the result is normalized to a 1 Hz bandwidth.
Critical Specifications Recommended
Item
(for this test) Agilent Model
Termination, 50Ω Type-N(m) Frequency: DC to 18 GHz 909A Option 012
Figure 2-1. DANL Test Setup
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