Types by Physical Medium: Unguided Physical Media

Unguided Media

Means of transmission that are not bound by a confined pathway are called unguided media, such as radio waves. Let’s discuss them in more detail.

Terrestrial Radio Channels

Radio waves encompass a certain band of the electromagnetic spectrum. They provide many advantages, such as not needing to be physically wired through a building, the ability to cross physical barriers like walls and other objects, and allowing for end systems to be mobile. However, they also have some disadvantages: they’re considered to be less secure since interception is relatively easy.