The FM and AM Frequencies table has been discontinued ... For more information on how to listen to BBC Radio Wales on DAB, FM, Medium Wave, digital TV and online, visit our Ways to Listen guide.

Back to our radio signal ... Actually, the wave displayed in the activity is a representation of the back and forth movement of electrons. If the wave has a frequency of 200,000 Hz (cycles ...

one of the few known effects of radio waves on the human body is a very small rise in temperature of up to 0.2 o C. Some people claim the very low frequency radio waves from overhead power cables ...

FM radio works the same way that AM radio works. The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to ...