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radio_basics [2015/11/19 14:47]
cwh0009 [Phase]
radio_basics [2015/11/19 14:47]
cwh0009 [Amplitude]
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 If the voltage of an alternating current (AC) signal is measured with a simple voltmeter, the voltage reported is the RMS voltage. This is typically 120 V in the United States. The actual form of the wave can be examined using a tool called an oscilloscope. If the voltage of an alternating current (AC) signal is measured with a simple voltmeter, the voltage reported is the RMS voltage. This is typically 120 V in the United States. The actual form of the wave can be examined using a tool called an oscilloscope.
  
-^Amplitude |+^Wave Amplitude |
 |{{:​amplitude.png|}}| |{{:​amplitude.png|}}|
 |There are different methods of measuring the amplitude. The numbers indicated (1) the peak amplitude, (2) the peak-to-peak amplitude, (3) the root means square amplitude (RMS), and (4) the wavelength (which is not an amplitude). A standard AC electrical power outlet carries 120 Volts at 60 Hz. AC voltages are reported as root mean square voltages. The actual peak amplitude is about 170 Volts and the peak-to-peak voltage is about 340 Volts. | |There are different methods of measuring the amplitude. The numbers indicated (1) the peak amplitude, (2) the peak-to-peak amplitude, (3) the root means square amplitude (RMS), and (4) the wavelength (which is not an amplitude). A standard AC electrical power outlet carries 120 Volts at 60 Hz. AC voltages are reported as root mean square voltages. The actual peak amplitude is about 170 Volts and the peak-to-peak voltage is about 340 Volts. |
radio_basics.txt · Last modified: 2015/11/19 14:47 by cwh0009