Radio signals are perhaps one of the most revolutionary discoveries related to modern technology, especially communications. They are named radio signals because of their early usage by radio companies to broadcast voice.
Starting from the broadcast companies, they now are used in a range of fields to send and receive data. Some examples are TVs, cell phones, wireless computing devices, GPS technology, satellite communication and more.
Essentially just electro-magnetic waves with a certain amount of strength, they are modulated with data and released in the intended directions. As the carrier wave travels, it becomes weak and cannot penetrate solid structures such as buildings and hills. The tendency of these waves to spread out as they travel, overcomes this problem.
This guide collects articles from Bright Hub explaining the many uses of these signals. Explore the amazing technology that helps us improve communication around the world!
Image from Wikimedia Commons by Apdency
|Cellphones, FM, Internet, and GPS – the Radio World in Communication and Broadcasting
A feature-rich cellphone allows MMS, SMS, calls, Internet access, FM radio, and also a GPS unit. This is the best example of an integrated circuit (IC) that allows same radio...
Wifi Standards: What is WEP and WPA?
This article takes an in-depth, technical look at the WEP and WPA wifi encryptions - find out which one is right for you inside....
|Guide to iPhone's Airplane Mode
Airplane mode is explained in detail. A how-to guide explaining how to enable and deactivate iPhone's airplane mode is included with screenshots....
Hints and Tips to Get the Most from your Nokia N900
The Nokia N900 is not called a Maemo mobile tablet for nothing. There are things it can do beyond the traditional functions of a regular smartphone. Keep reading to get a few Nokia...