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Types by Physical Medium: Unguided Physical Media

Explore the types of unguided physical media used in computer networking such as terrestrial radio channels including Bluetooth, WiFi, 3G, LTE, and free-space optical communication. Understand their advantages, drawbacks, transmission ranges, and typical uses in wireless data transfer and internet access.

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 ...