Engineers Explain the Electromagnetic Spectrum

by | Sep 27, 2022 | Security System & Services

When technologists want to incorporate a software-defined radio module into their circuit designs, they’ll need to figure out what part of the electromagnetic spectrum they plan on using. One of the biggest issues with doing so is related to the wide use of acronyms in the telecommunications field. Many of these are poorly defined, which has encouraged a group of engineers in the Rolling Meadows area to come up with some simple definitions of what boundaries define which section of electromagnetic real estate.

A majority of modern digital communications take place in the super high-frequency range. Most people would define the SHF region as living somewhere between 3-30GHz. This includes modern 5GHz Wi-Fi connections as well as some new types of cellular connections. Ultra high-frequency transmissions, which take place between 300MHz-3GHz, include traditional Wi-Fi as well as television channels and most types of wireless phones.

Conventional very high-frequency transmissions are quickly becoming more popular because this region of the electromagnetic spectrum has more or less become vacant in many areas as a result of all of the focus on microwave radio. VHF transmissions occupy the area above 30MHz all the way up to the UHF boundary. Analog FM broadcasts exist in this region, and there’s no reason someone couldn’t design a software-based radio module that can listen to them. There’s even the possibility that local stations could incorporate one into their transmitter designs.

Check out the full specifications for software defined radio modules online at Epiq Solutions for more info visit

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