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The purpose of a spectrum analyzer is to measure the power of the spectrum of known and unknown signals. Spectrum analyzers can measure the amplitude of an input signal compared to the frequency range of the device.

There are two different methods that can be used during signal measurement in the frequency domain. The first method is called Fast Fourier Transform (FFT), digital technology, and uses mathematic formulas to obtain the frequency spectrum of a signal. The process involves a sample of the signal in the time domain that is then transformed into a digital format. Fourier analysis then transforms this measurement to display the signal in the frequency domain. The second method is called Swept-Tuned Analysis, analog technology, and involves a sweep generator being placed on the device to control the local oscillator (LO). The input signal is mixed with this to assure only the specified frequency range determined by the sweep generator is viewed. lastly, an amplifier and filter are used on the mixed signal to obtain the spectrum.

Avalon Test Equipment carries a variety of spectrum analyzers from top manufacturers (Keysight, Rohde & Schwarz, and more) to meet specific testing requirements. Rent from Avalon and Test With Confidence®.

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Keysight N9010B EXA Signal Analyzer

Multi-touch, 10 Hz–44 GHz

Keysight/Agilent N9020A MXA Signal Analyzer

10 Hz to 3.6, 8.4, 13.6, or 26.5 GHz

Rohde & Schwarz Spectrum Rider FPH Handheld Spectrum Analyzer

The Rhode & Schwarz Spectrum Rider FPH Handheld Spectrum Analyzer is an affordable, portable, and reliable option to capture weak signals with a DANL (displayed average noise level) as low as -163dBm.

Keysight E7402A EMC Spectrum Analyzer

Early evaluation of your design's EMI performance is essential for a successful product. The Keysight E7402A EMC Spectrum Analyzer is part of the E7400A Series which provides the capabilities you need in an analyzer to make in-house EMI pre-compliance testing a reality.

Keysight N9020B MXA Signal Analyzer

Multi-touch, 10 Hz–50 GHz

Keysight N9021B MXA Signal Analyzer

Multi-touch, 10 Hz to 50 GHz

Keysight N9040B UXA Signal Analyzer

Multi-touch, 2 Hz–50 GHz

Rohde & Schwarz ESR7 EMI Test Receiver

input 1, AC coupled: 10 MHz to 7 GHz
input 1, DC coupled: 9 kHz to 7 GHz
input 2, DC coupled: 9 kHz to 1 GHz

Rohde & Schwarz FSL6 Spectrum Analyzer

High-end functions in an extremely lightweight, compact package. 9 kHz–6 GHz

Rohde & Schwarz FSMR26 Measuring Receiver

All-in-one calibration of signal generators and attenuators

Rohde & Schwarz FSMR3 Measuring Receiver

All-in-one calibration of signal generators and attenuators. 20 Hz–3.6 GHz

Rohde & Schwarz FSMR43 Measuring Receiver

All-in-one calibration of signal generators and attenuators. 20 Hz–43 GHz

Rohde & Schwarz FSV13 Signal & Spectrum Analyzer

General purpose analyzer. Frequency range of 10 Hz to 13.6 GHz.

Rohde & Schwarz FSV40 Signal & Spectrum Analyzer

General purpose analyzer. Frequency range of 10 Hz to 40 GHz.

Rohde & Schwarz FSW85 Signal & Spectrum Analyzer

2 Hz to 85 GHz (with R&S®FSW-B90G option: 2 Hz to 90 GHz)

Rohde & Schwarz FSWP26 Phase Noise Analyzer and VCO Tester

High‑end analysis of signal sources and components. 1 MHz–26.5 GHz

Rohde & Schwarz FSWP50 Phase Noise Analyzer and VCO Tester

High‑end analysis of signal sources and components. 1 MHz–50 GHz

Rohde & Schwarz FSWP8 Phase Noise Analyzer and VCO Tester

High‑end analysis of signal sources and components. 1 MHz–8 GHz