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 MS2690A New (GSA discount) SIGNAL ANALYZER. Supplied with 1 year warranty coverage. MS2690A
Anritsu MS2691A New (GSA discount) SIGNAL ANALYZER. Supplied with 1 year warranty coverage. MS2691A
Anritsu MS2692A New (GSA discount) SIGNAL ANALYZER. Supplied with 1 year warranty coverage. MS2692A
Anritsu MS2712E New (GSA discount) Spectrum Master; 9 kHz to 4 GHz Spectrum Analyzer. Supplied with 3 year warranty coverage. MS2712E
Anritsu MS2713E New (GSA discount) Spectrum Master; 9 kHz to 6 GHz Spectrum Analyzer. Supplied with 3 year warranty coverage. MS2713E
Anritsu MS2720T New (GSA discount) Spectrum Master . Supplied with 3 year warranty coverage. MS2720T
Anritsu S331E New (GSA discount) Site Master; 2 MHz to 4 GHz Cable & Antenna Analyzer. Supplied with 3 year warranty coverage. S331E
Anritsu S332E New (GSA discount) Site Master; 2 MHz to 4 GHz Cable & Antenna Analyzer; 100 kHz to 4 GHz; 9 kHz to 4 GHz Spectrum AnalyzeSpectrum Analyzer. Supplied with 3 year warranty coverage. S332E
Anritsu S361E New (GSA discount) Site Master; 2 MHz to 6 GHz Cable & Antenna Analyzer. Supplied with 3 year warranty coverage. S361E
Anritsu S362E New (GSA discount) Site Master; 2 MHz to 6 GHz Cable & Antenna Analyzer; 9 kHz to 6 GHz Spectrum Analyzer. Supplied with 3 year warranty coverage. S362E
Keysight Technologies Inc. DSA90254A New (GSA discount) Digital Signal Analyzer - 2.5 GHz, 20 GSa/s, 4 channel, 50M memory DSA90254A
Keysight Technologies Inc. DSA90404A New (GSA discount) Digital Signal Analyzer - 4 GHz, 20 GSa/s, 4 Ch, 50M memory DSA90404A
Keysight Technologies Inc. DSA90604A New (GSA discount) Digital Signal Analyzer - 6 GHz, 20 GSa/s, 4 Ch, 50M memory DSA90604A
Keysight Technologies Inc. DSA90804A New (GSA discount) Digital Signal Analyzer - 8 GHz, 40 GSa/s, 4 Ch, 50M memory DSA90804A
Keysight Technologies Inc. DSA91204A New (GSA discount) Digital Signal Analyzer - 12 GHz, 40 GSa/s, 4 Ch, 50M memory DSA91204A
Keysight Technologies Inc. DSA91304A New (GSA discount) Digital Signal Analyzer - 13 GHz, 40 GSa/s, 4 Ch, 50M memory DSA91304A
Keysight Technologies Inc. DSAZ204A New (GSA discount) Digital Signal Analyzer (1st gen Z-Series) 20 GHz 80 GSa/S 4 channel DSAZ204A
Keysight Technologies Inc. DSAZ254A New (GSA discount) Digital Signal Analyzer (1st gen Z-Series) 25 GHz 80 GSa/S 4 channel DSAZ254A
Keysight Technologies Inc. DSAZ334A New (GSA discount) Digital Signal Analyzer (1st gen Z-Series) 33 GHz 80 GSa/S 4 channel DSAZ334A
Keysight Technologies Inc. DSAZ504A New (GSA discount) Digital Signal Analyzer (1st gen Z-Series) 50 GHz 160 GSa/S 4 channel DSAZ504A
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Spectrum Analyzers by different manufacturers: