If you live in a city, you’re constantly swimming in a thick soup of radio-frequency energy. FM radio stations put out hundreds of kilowatts each into the air. Students at the University of ...

The Buzzer, also known as UVB-76 or UZB-76, has been a constant companion to anyone with a shortwave radio ... near in frequency to the original. Of course, like all mysterious stations, people ...

You've already probably noticed that FM radio reception is usually ... where the radio station's frequency is displayed in illuminated numbers) will work, but only near a radio station's transmitter.

With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes ...

is one of the radio broadcasting systems in the UK. FM uses frequencies from 87.5 MHz to 108MHz. The BBC broadcasts a number of UK-wide network services e.g. Radio 1 and Radio 4. We also ...

HD Radio allows conventional (or terrestrial) AM and FM stations to broadcast their content over digital signals. Appropriating an abbreviation from high-definition TV, HD Radio offers better ...