Spectrum analyzers are devices used to monitor and measures the power of the spectrum of known and unknown signals. The devices are used to measure the spectral configuration of optical signals, electrical, and acoustic signals. Spectrum analyzers are used to analyze amplitude against the frequency. Amplitude is normally measured in power or in dBm instead of volts, that is generally used in all most all spectrum analyzer. Spectrum analyzers of different range are often used in factories, industries and in laboratories.
There are various spectrum analyzers, having different frequency range, resolution bandwidth, and SSB phase noise. Various analyzer includes-
- Rack Mount spectrum analyzer
- Portable spectrum analyzer
- Embedded spectrum analyzer
A 9kHz-3GHz Spectrum analyzer which is taken as an economic spectrum analyzer. It is ideal for general purpose benchtop and field applications where signals and frequency can be measured at or below 3 GHz. Mainly the technology used in the analysers guarantees the reliability and performance required to meet the RF applications. Because of its exceptional value and affordable price for a spectrum analyzer it is used in different organisations such as the telecommunication industry for analyzing the frequency spectrum, maintenance, RF education, and R&D.
Spectrum analyzer display-
A key point of using a spectrum analyzer is to understand the display importance. The main purpose of a spectrum analyzer is to show the signal amplitude plot against frequency. The display has a graticule which shows ten major horizontal and ten major vertical divisions. Your findings will not only be accurate, above this they will also be easy to read and interpret when they are displayed on the widescreen display, featuring high resolution.
Scan rate-
There is always the need to check the scans rate, it should be made as fast as possible. Because if the scan time is slow then it will take more time for the measurements. The processor in the spectrum analyzer warn if the scan rate is high for settings of filter.
While seeking the spectrum analyzers, there are numerous modulation performance specifications to consider. Out of many, some of the significant factors are as following:
- Frequency resolution.
- The sensitivity of the frequency range and
- Frequency accuracy
Thus, it is crucial, that whatever spectrum analyzer you choose should have the basic frequencies of the application to which it is be used for.
