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. MS2690A
Anritsu MS2692A New (GSA discount) SIGNAL ANALYZER. MS2692A
Anritsu MS2720T New (GSA discount) Spectrum Master (Must be ordered with ONE frequency option) MS2720T
Anritsu S331E New (GSA discount) Site Master, 2 MHz - 4 GHz Cable & Antenna Analyzer S331E
Anritsu S332E New (GSA discount) Site Master, 2 MHz - 4 GHz Cable & Antenna Analyzer, 9 kHz - 4 GHz Spectrum Analyzer S332E
Anritsu S361E New (GSA discount) Site Master, 2 MHz - 6 GHz Cable & Antenna Analyzer S361E
Anritsu S362E New (GSA discount) Site Master, 2 MHz - 6 GHz Cable & Antenna Analyzer, 9 kHz - 6 GHz Spectrum Analyzer S362E
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
Keysight Technologies Inc. DSAZ634A New (GSA discount) Digital Signal Analyzer (1st gen Z-Series) 63 GHz 160 GSa/S 4 channel DSAZ634A
Rohde & Schwarz 1309.6800.24 New (GSA discount) Handheld cable and antenna analyzer, 100kHz to 3.6GHz 1309.6800.24
Rohde & Schwarz 1311.0006.07 New (GSA discount) Real-Time spectrum analyzer, 10 Hz to 7GHz, 40MHz bandwidth, signal and spectrum analyzer, 1311.0006.07
Rohde & Schwarz 1311.0006.13 New (GSA discount) Real-Time spectrum analyzer, 10 Hz to 13GHz, 40MHz bandwidth, signal and spectrum analyzer, 1311.0006.13
Rohde & Schwarz 1311.0006.30 New (GSA discount) Real-Time spectrum analyzer, 10 Hz to 30GHz, 40MHz bandwidth, signal and spectrum analyzer, 1311.0006.30
Rohde & Schwarz 1311.0006.40 New (GSA discount) Real-Time spectrum analyzer, 10 Hz to 40GHz, 40MHz bandwidth, signal and spectrum analyzer, 1311.0006.40
Tektronix RSA5103B New (GSA discount) Real Time Signal Analyzer 1 Hz-3 GHz RSA5103B
Tektronix RSA5106B New (GSA discount) Real Time Signal Analyzer 1 Hz-6.2 GHz RSA5106B
Tektronix RSA5115B New (GSA discount) Real Time Signal Analyzer 1 Hz-15 GHz RSA5115B
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Spectrum Analyzers by different manufacturers: