The heat from these bubbles transfers to the pool water, and can raise the water temperature by up to 15 degrees Fahrenheit. Once the pool water has been heated, Solar Covers are great for maintaining a pleasant water temperature long after the sun has set and the air has cooled down. Solar Covers do this by preventing heat loss through evaporation, which accounts for 70% of a poolâs heat loss.
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to the waveform being transmitted. That waveform may, for instance, correspond to the sounds to be reproduced by a loudspeaker, or the light intensity of television pixels.
First, the radio station encodes some information on a radio wave. This is known as modulation. They then broadcast the radio wave with the encoded information onto a certain frequency. Your radio antenna picks up the broadcast based on the frequency to which your radio dial is tuned. Your radio then decodes the information from the radio wave and plays that information through the speakers as sound.