There is a "Frequency allocation spectrum" for every country and some times every Provence if it has some independence. Each frequency band is located for a certain purpose of use such as for military communications or radio broadcast and so on. This chart is done by the government to organize the frequency bands and avoid interference between them by giving a band for each usage. Spectrum's are sold to the telecommunication companies by a yearly contract and big companies buy the frequency bands and then sell them or rent them to the small companies. The chart is updated every year to allocate frequency bands for new technologies.
Click here to see the PDF file for the Canadian table of frequency allocation 2018
This chart shows all the frequency bands in Canada between 3KHz to 300GHz. Most meters in the market only detects a certain frequency band therefore it is important to understand which frequency band the meter is detecting or have a meter for every frequency band.
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