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 S361E New (GSA discount) Site Master; 2 MHz to 6 GHz Cable & Antenna Analyzer. Supplied with 3 year warranty coverage. S361E
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 S331E New (GSA discount) Site Master; 2 MHz to 4 GHz Cable & Antenna Analyzer. Supplied with 3 year warranty coverage. S331E
Anritsu MT8212E New (GSA discount) Cell Master; 2-Port Cable/Antenna Analyzer (2 MHz - 4 GHz); Spectrum Analyzer (9 KHz - 4 GHz); Power Meter (10 MHz - 4 GHz). Supplied with 3 year warranty coverage. MT8212E
Anritsu MS2720T New (GSA discount) Spectrum Master . Supplied with 3 year warranty coverage. MS2720T
Anritsu MS2713E New (GSA discount) Spectrum Master; 9 kHz to 6 GHz Spectrum Analyzer. Supplied with 3 year warranty coverage. MS2713E
Anritsu MS2712E New (GSA discount) Spectrum Master; 9 kHz to 4 GHz Spectrum Analyzer. Supplied with 3 year warranty coverage. MS2712E
Anritsu MS2692A New (GSA discount) SIGNAL ANALYZER. Supplied with 1 year warranty coverage. MS2692A
Anritsu MS2691A New (GSA discount) SIGNAL ANALYZER. Supplied with 1 year warranty coverage. MS2691A
Anritsu MS2690A New (GSA discount) SIGNAL ANALYZER. Supplied with 1 year warranty coverage. MS2690A
Bird Electronic Corporation SH-36S-PC New (GSA discount) SignalHawk, PC Module Spectrum Analyer 100kHz - 3.6 GHz SH-36S-PC
Bird Electronic Corporation SH-36S New (GSA discount) SignalHawk Spectrum Analyzer 100 kHz-3.6GHz SH-36S
Instek America Corp. GSP-810TGPM New (GSA discount) with Tracking Generator & Power Meter GSP-810TGPM
Instek America Corp. GSP-810TG New (GSA discount) with Tracking Generator GSP-810TG
Instek America Corp. GSP-810PM New (GSA discount) with Power Meter GSP-810PM
Instek America Corp. GSP-810 New (GSA discount) Spectrum Analyzer 150KHz-1GHz GSP-810
Keysight Technologies Inc. N9342C New (GSA discount) Handheld Spectrum Analyzer, 7.0 GHz N9342C
Keysight Technologies Inc. N9340B New (GSA discount) Handheld Spectrum Analyzer, 3.0 GHz N9340B
Keysight Technologies Inc. E4446A New (GSA discount) PSA spectrum analyzer 3 Hz - 44 GHz E4446A
Keysight Technologies Inc. E4445A New (GSA discount) PSA Spectrum Analyzer 3 Hz - 13.2 GHz E4445A
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Spectrum Analyzers by different manufacturers: