There are many different varieties of modulation but they all fall into three basic categories, namely amplitude modulation ... of the modulating frequency. The relative levels of the sidebands can be ...

Let’s start our expla nations of loudspeaker measurement graphs with the most basic graph of a speaker’s behavior: the frequency response. Sometimes this is referred to as the amplitude response as ...

The greater the amplitude of a wave then the more energy it is carrying. Don't get confused with this quantity frequency. It is not a distance travelled by waves, nor is it a speed, although it is ...

Save guides, add subjects and pick up where you left off with your BBC account. A boat at sea bobs up and down as waves pass. The vertical distance between a crest and a trough is 52 cm and 20 ...