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A spectrum analyzer is an electronic instrument used to measure the magnitude of an input signal versus frequency within a specified frequency range. It typically displays the signal's amplitude (voltage) on the vertical axis and frequency on the horizontal axis. Spectrum analyzers can be analog or digital and are commonly used in various fields to analyze the frequency spectrum of signals.
| Frequency range | 9 kHz to 3 GHz |
| Resolution bandwidth | 1 Hz to 10 MHz |
| Dynamic range | 80 dB to 120 dB |
| Input impedance | 50 ohms |
| Display type | LCD or LED |
| Interface | USB, GPIB, Ethernet |
When choosing a spectrum analyzer, consider the frequency range required for your applications, as well as the resolution bandwidth necessary for accurate measurements. Look for models with a suitable dynamic range to capture both weak and strong signals. Additionally, check for interfaces that are compatible with your existing systems. Certifications and tolerances may also be important depending on your industry standards.
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It measures and displays the amplitude of signals across a range of frequencies.
It can analyze RF signals, audio signals, and any signal that can be represented in the frequency domain.
Handheld models are portable and suitable for field use, while benchtop models offer more features and higher performance for lab settings.
You typically connect it via coaxial cables to the output of the device you wish to measure.
It is the smallest frequency range that can be resolved by the analyzer, affecting the detail of the spectrum displayed.
Yes, many modern spectrum analyzers offer real-time analysis capabilities.