Spectrum Analyzer


Overview:

Spectrum analyzer is a device used to examine the spectral composition of some electrical, acoustic, or optical waveform. Often, it measures the power spectrum. Spectrum analysis is concerned primarily with characterizing signal components (such as its spurious and harmonic components, modulation, noise, etc.) Spectrum analyzer is used to locate frequencies where microwave energy exists.

There are analogue and digital spectrum analyzers:

  • An analogue spectrum analyzer uses either a variable bandpass filter whose mid-frequency is automatically tuned (shifted, swept) through the range of frequencies of which the spectrum is to be measured or a superheterodyne receiver where the local oscillator is swept through a range of frequencies.
  • A digital spectrum analyzer uses the Fast Fourier Transform (FFT), a mathematical process that transforms a waveform into its frequency components in the spectrum. As a result, computer programs can compute such transforms, and makes audio processing easier. FFTs have applications in much wider fields.

Spectrum analyzer is used in the following areas of measurement analysis:

  • Distortion measurements
    • Distortion in amplifiers
    • Third order intercept measurement
    • Distortion in mixers
    • Distortion in oscillators
  • Modulation measurements
    • Amplitude modulation (AM) measurement
    • Frequency modulation (FM) measurement
  • Pulsed RF measurements
  • Noise measurements
    • Noise figure (NF) measurement
  • Electromagnetic interference (EMI) measurement

Important spectrum analyzer products:

Manufacturer Model Condition Description Specs
Aeroflex Test Solutions 3251-0 New (GSA discount) 1KHz - 3GHz Spectrum Analyzer 3251-0
Aeroflex Test Solutions 3251-1 New (GSA discount) 1KHz - 3GHz Spectrum Analyzer + 3GHz Tracking Generator 3251-1
Aeroflex Test Solutions 3252-0 New (GSA discount) 1KHz - 8GHz Spectrum Analyzer 3252-0
Aeroflex Test Solutions 3252-1 New (GSA discount) 1KHz - 8GHz Spectrum Analyzer + 3GHz Tracking Generator 3252-1
Aeroflex Test Solutions 3252-2 New (GSA discount) 1KHz - 8GHz Spectrum Analyzer + 8GHz Tracking Generator 3252-2
Aeroflex Test Solutions 3253-0 New (GSA discount) 1KHz - 13.2 GHz Spectrum Analyzer 3253-0
Aeroflex Test Solutions 3253-1 New (GSA discount) 1KHz - 13.2 GHz Spectrum Analyzer + 3GHz Tracking Generator 3253-1
Aeroflex Test Solutions 3253-2 New (GSA discount) 1KHz - 13.2 GHz Spectrum Analyzer + 8GHz Tracking Generator 3253-2
Aeroflex Test Solutions 3254-0 New (GSA discount) 1KHz - 26.5 GHz Spectrum Analyzer 3254-0
Aeroflex Test Solutions 3254-1 New (GSA discount) 1KHz - 26.5 GHz Spectrum Analyzer + 3GHz Tracking Generator 3254-1
Aeroflex Test Solutions 3254-2 New (GSA discount) 1KHz - 26.5 GHz Spectrum Analyzer + 8GHz Tracking Generator Options 3254-2
Aeroflex Test Solutions 6841A New (GSA discount) 3 GHz System Analyzer (With 4.2 GHz Spectrum Analyzer) 6841A
Aeroflex Test Solutions 6842A New (GSA discount) 8.4 GHz System Analyzer (With 20 GHz Spectrum Analyzer) 6842A
Aeroflex Test Solutions 6844A New (GSA discount) 24 GHz System Analyzer 6844A
Aeroflex Test Solutions 6845A New (GSA discount) 46 GHz System Analyzer (Export Licence May Apply) 6845A
Aeroflex Test Solutions 6845AR New (GSA discount) 40 GHz System Analyzer 6845AR
Aeroflex Test Solutions 6846A New (GSA discount) 8.4 GHz System Analyzer (With 24 GHz Spectrum Analyzer) 6846A
Aeroflex Test Solutions 6847A New (GSA discount) 20 GHz System Analyzer (With 26.5 GHz Spectrum Analyzer) 6847A
Aeroflex Test Solutions 6848A New (GSA discount) 3 GHz System Analyzer (With 20 GHz Spectrum Analyzer) 6848A
Anritsu MS2690A New (GSA discount) SIGNAL ANALYZER. Supplied with 1 year warranty coverage. MS2690A
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Spectrum Analyzers by different manufacturers: