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
Agilent 8595E 3rd party pre-owned Portable Spectrum Analyzer, 9kHz to 6.5 GHz 8595E
Agilent 8595E 3rd party pre-owned Portable Spectrum Analyzer, 9kHz to 6.5 GHz 8595E
Agilent 8595E 3rd party pre-owned Portable Spectrum Analyzer, 9kHz to 6.5 GHz 8595E
Agilent 8595E 3rd party pre-owned Portable Spectrum Analyzer, 9kHz to 6.5 GHz 8595E
Agilent 8595E 3rd party pre-owned Portable Spectrum Analyzer, 9kHz to 6.5 GHz 8595E
Agilent 8594E 3rd party pre-owned Portable Spectrum Analyzer, 9 kHz to 2.9 GHz 8594E
Agilent 8594E 3rd party pre-owned Portable Spectrum Analyzer, 9 kHz to 2.9 GHz 8594E
Agilent 8594E 3rd party pre-owned Portable Spectrum Analyzer, 9 kHz to 2.9 GHz 8594E
Agilent 8593E 3rd party pre-owned Portable Spectrum Analyzer, 9 kHz to 22 GHz 8593E
Agilent 8591E 3rd party pre-owned Portable Spectrum Analyzer, 9 kHz to 1.8 GHz 8591E
Agilent 8591E 3rd party pre-owned Portable Spectrum Analyzer, 9 kHz to 1.8 GHz 8591E
Agilent 8591E 3rd party pre-owned Portable Spectrum Analyzer, 9 kHz to 1.8 GHz 8591E
Agilent 8591C 3rd party pre-owned 50to 1002 MHz Cable TV Analyzer 8591C
Agilent 8591C 3rd party pre-owned 50to 1002 MHz Cable TV Analyzer 8591C
Agilent 8591C 3rd party pre-owned 50to 1002 MHz Cable TV Analyzer 8591C
Agilent 8568B 3rd party pre-owned 100 Hz to 1500 MHz, Spectrum Analyzer, Bench 8568B
Agilent 8568B 3rd party pre-owned 100 Hz to 1500 MHz, Spectrum Analyzer, Bench 8568B
Agilent 8568B 3rd party pre-owned 100 Hz to 1500 MHz, Spectrum Analyzer, Bench 8568B
Agilent 8568B 3rd party pre-owned 100 Hz to 1500 MHz, Spectrum Analyzer, Bench 8568B
Agilent 85685A 3rd party pre-owned RF Preselector, 20Hz to 2GHz, Spectrum Analyzer 85685A
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: