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
Anritsu MS2713E 3rd party pre-owned Spectrum Master, 100 kHz to 6 GHz Spectrum Analyzer MS2713E
Anritsu MS2713E 3rd party pre-owned Spectrum Master, 100 kHz to 6 GHz Spectrum Analyzer MS2713E
Anritsu MS2712E 3rd party pre-owned Spectrum Master, 100 kHz to 4 GHz Spectrum Analyzer MS2712E
Anritsu MS2712E 3rd party pre-owned Spectrum Master, 100 kHz to 4 GHz Spectrum Analyzer MS2712E
Anritsu MS2712E 3rd party pre-owned Spectrum Master, 100 kHz to 4 GHz Spectrum Analyzer MS2712E
Anritsu MS2711D 3rd party pre-owned Handheld Spectrum Analyzer, 100 kHz to 3.0 GHz MS2711D
Anritsu MS2711D 3rd party pre-owned Handheld Spectrum Analyzer, 100 kHz to 3.0 GHz MS2711D
Anritsu MS2711D 3rd party pre-owned Handheld Spectrum Analyzer, 100 kHz to 3.0 GHz MS2711D
Anritsu MS2711D 3rd party pre-owned Handheld Spectrum Analyzer, 100 kHz to 3.0 GHz MS2711D
Anritsu MS2711D 3rd party pre-owned Handheld Spectrum Analyzer, 100 kHz to 3.0 GHz MS2711D
Anritsu MS2711D 3rd party pre-owned Handheld Spectrum Analyzer, 100 kHz to 3.0 GHz MS2711D
Anritsu MS2687B 3rd party pre-owned Spectrum Analyzer (9kHz to 30GHz ) MS2687B
Anritsu MS2683A 3rd party pre-owned Spectrum Analyzer (9kHz to 7.8 GHz ), High Performance MS2683A
Anritsu MS2668C 3rd party pre-owned Spectrum Analyzer (9kHz to 40GHz) MS2668C
Anritsu MS2668C 3rd party pre-owned Spectrum Analyzer (9kHz to 40GHz) MS2668C
Anritsu MS2665C 3rd party pre-owned Spectrum Analyzer (9kHz to 21.2Ghz) MS2665C
Anritsu MS2661C 3rd party pre-owned Spectrum Analyzer (9kHz to 3 GHz) MS2661C
HP E4405B 3rd party pre-owned Not-on-file(other-mfr) E4405B
HP E4403B 3rd party pre-owned Not-on-file(other-mfr) E4403B
HP 8569B 3rd party pre-owned Not-on-file(other-mfr) 8569B
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Spectrum Analyzers by different manufacturers: