Clock Radios

Radio-controlled clocks are clocks with radios in them. The radio picks up time signals from the National Institute of Standards and Technology (NIST) radio station in Boulder, Colorado. The radio...

Alarm clocks have awakened us ever since they were first patented in 1847. Today, modern alarm clocks have digital components that replace mainsprings with batteries and swap clockwork for circuit...

A radio is a device that can send and receive radio signals. By using electric current, you can manipulate waves that run along the electromagnetic spectrum. People cannot hear and see radio waves...

FM stands for "frequency modulation." It is a term that describes how a radio signal is sent along a carrier wave. FM tends to have less disturbance or noise than AM radio. This is because the FM...

There are many types of alarm clock radios and a variety of ways to set them. You can get an alarm clock with a CD or DVD player built into them as well as just the radio. You can set the alarm to...

Recording music or other broadcasts off the radio is considered a form of "fair use" of the copyrighted material. With software, some inexpensive equipment and a few cables, you can record your...

Clocks have come a long way since the invention of the first mechanical alarm clock, which featured a ringing bell on top, in 1787. Alarm clocks are so vital to the nation's economy that they were...