Noise Figure Measurement Application

General Specifications

Description

Specifications

Supplemental Information

 

 

 

Noise Figure Uncertainty Calculatora

 

 

Instrument Noise Figure Uncertainty

See the Noise Figure

 

 

table earlier in this

 

 

chapter

 

Instrument Gain Uncertainty

See the Gain table

 

 

earlier in this chapter

 

Instrument Noise Figure

 

See graphs of “Nominal Instrument

 

 

Noise Figure”; Noise Figure is DANL

 

 

+176.24 dB (nominal)b

 

 

Note on DC couplingc

Instrument Input Match

 

See graphs: Nominal VSWR

 

 

Note on DC couplingd

a.The Noise Figure Uncertainty Calculator requires the parameters shown in order to calculate the total uncertainty of a Noise Figure measurement.

b.Nominally, the noise figure of the spectrum analyzer is given by

NF = D (K L + N + B)

where D is the DANL (displayed average noise level) specification, K is kTB (-173.98 dBm in a 1 Hz bandwidth at 290 K)

L is 2.51 dB (the effect of log averaging used in DANL verifications)

N is 0.24 dB (the ratio of the noise bandwidth of the RBW filter with which DANL is specified to an ideal noise bandwidth)

B is ten times the base-10 logarithm of the RBW (in hertz) in which the DANL is specified. B is 0 dB for the 1 Hz RBW.

The actual NF will vary from the nominal due to frequency response errors.

c.The effect of AC coupling is negligible for frequencies above 40 MHz. Below 40 MHz, DC coupling is recommended for the best measurements. The instrument NF nominally degrades by 0.2 dB at 30 MHz and 1 dB at 10 MHz with AC coupling.

d.The effect of AC coupling is negligible for frequencies above 40 MHz. Below 40 MHz, DC coupling is recommended for the best measurements.

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Agilent Technologies N9010A specifications

N9010A specifications

Agilent Technologies, now known as Keysight Technologies, offers a wide range of sophisticated measurement instruments, one of which is the N9010A, a high-performance signal analyzer. The N9010A is a versatile tool designed to meet the needs of engineers and researchers dealing with complex signal generation and analysis.

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One of the defining characteristics of the N9010A is its high dynamic range and sensitivity. The instrument has been engineered to ensure that weak signals can be accurately detected in the presence of strong interfering signals. This quality is crucial for applications such as spectrum monitoring and interference analysis.

Equipped with advanced digital signal processing techniques, the N9010A allows for real-time analysis of complex signals. The analyzer supports various modulation techniques and can perform measurements on frequency, time, and phase to provide a comprehensive view of signal performance. Users can leverage its abilities to analyze a wide range of formats including LTE, Wi-Fi, and many others.

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In summary, the Agilent Technologies N9010A signal analyzer combines advanced technology, high performance, and user-friendly features. Its ability to handle a wide range of applications makes it an essential tool in the toolbox of modern engineers and researchers working in signal analysis, making it a valuable investment in the pursuit of technological advancements.