What are the types of frequency range?

(1) A group of frequencies in the electromagnetic spectrum that are assigned by regulatory agencies for a particular purpose . Also called a “frequency band.” See frequency bands, spectrum, satellite frequency bands and optical bands. (2) A group of frequencies that occur naturally such as the audio spectrum.

Infrared radiation. The infrared part of the electromagnetic spectrum covers the range from roughly 300 GHz to 400 THz (1 mm – 750 nm) . It can be divided into three parts: Far-infrared, from 300 GHz to 30 THz (1 mm – 10 μm).

In the United States, there are the four major frequency bands in use: 698-806 MHz (700 MHz Band) 806-849/851-896 MHz (800 MHz Band) 1850-1910/1930-1990 MHz (PCS Band)

Frequency Bands and Applications Frequency Band NameAcronymFrequency RangeMedium FrequencyMF300 to 3000 kHzHigh FrequencyHF3 to 30 MHzVery High FrequencyVHF30 to 300 MHzUltra High FrequencyUHF300 to 3000 MHzFrequency Bands and Applications – Blog | JEM Engineering www.jemengineering.com › blog-frequency-bands-and-applications