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
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3273 3rd party pre-owned Not-on-file(other-mfr) R3273
Advantest R3271 3rd party pre-owned Spectrum Analyzers R3271
Advantest R3267 3rd party pre-owned Not-on-file(other-mfr) R3267
Advantest R3265A 3rd party pre-owned 100Hz to 8GHz Spectrum Analyzers R3265A
Advantest R3265 3rd party pre-owned Spectrum Analyzers R3265
Advantest R3263 3rd party pre-owned 9 kHz to 3 GHz Spectrum Analyzers R3263
Advantest R3261A 3rd party pre-owned Spectrum Analyzer 9kHz to 2.6 GHz R3261A
Advantest R3162 3rd party pre-owned Spectrum Analyzer(New, Advanced Info) R3162
Advantest R3162 3rd party pre-owned Spectrum Analyzer(New, Advanced Info) R3162
Page:  1  2  3  4  5  6  7  8  9  10  11   12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41

Spectrum Analyzers by different manufacturers: