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The ratio of two power levels can be described in dB if you want to.
If the two power levels refer to the power of two waves, then they're
usually proportional to the square of the waves' amplitudes.
This is a somewhat slippery concept, but nothing is ever 'measured' in decibels.
The dB unit describes the ratio between two quantities. Whenever you see one
single thing described in terms of dB, it's always really a comparison between the
power of that thing and some reference power level. That's why you'll often see
tags on the dB, such as dBW, dBm, dBV, dBrn, dBc, etc. The tag identifies what
the reference level is, to which the present thing is being compared.
Example:
Shopping for a TV antenna, you may see "This antenna has a full 9 dBi of gain."
That's 9 dB more than a so-called 'isotropic' antenna'.
Or it might have " ... 9 dBd of gain ... ". That's 9 dB more than a dipole antenna.
The second antenna has more gain, because a dipole itself has gain of 2.2 dBi .
What else can I help you with?
How many decibles are waves?
Wave intensity is typically measured in decibels (dB). The decibel scale is logarithmic, so the exact value of the decibels for waves would depend on the intensity of the wave. Generally, normal conversations are around 60 dB, while a jet engine may be around 140 dB.
What property of a wave describes how often it occurs?
The property that describes how often a wave occurs is its frequency. Frequency is measured in hertz (Hz), with higher frequencies indicating more waves occurring per unit of time.
What wave property is shown at G?
The wave property shown at point G typically refers to the wavelength of the wave. Wavelength is the distance between two consecutive points on a wave that are in phase, such as two peaks or two troughs. It is usually denoted by the symbol λ and is measured in meters.
Which property of a wave is defined as the height as measured from the resting position to the crest?
The property of a wave that is defined as the height from the resting position to the crest is called the amplitude. It indicates the maximum displacement of a wave from its rest position. A larger amplitude typically represents a more intense wave.
Which property of waves is the distance between one point on a wave and that same point on wave next to it?
That distance is a definition, not a wave property. It's defined as the "wavelength".
What is a property of wave that is measured in units called decibels?
abriviation
How is sound measuerd?
Sound is measured in decibles, or decibals.I'm not sure of the spelling.
Sound is a messure in what unit?
sound is measured in decibles
How many decibles are waves?
Wave intensity is typically measured in decibels (dB). The decibel scale is logarithmic, so the exact value of the decibels for waves would depend on the intensity of the wave. Generally, normal conversations are around 60 dB, while a jet engine may be around 140 dB.
What property of a wave describes how often it occurs?
The property that describes how often a wave occurs is its frequency. Frequency is measured in hertz (Hz), with higher frequencies indicating more waves occurring per unit of time.
What wave property is shown at G?
The wave property shown at point G typically refers to the wavelength of the wave. Wavelength is the distance between two consecutive points on a wave that are in phase, such as two peaks or two troughs. It is usually denoted by the symbol λ and is measured in meters.
Which property of a wave is defined as the height as measured from the resting position to the crest?
The property of a wave that is defined as the height from the resting position to the crest is called the amplitude. It indicates the maximum displacement of a wave from its rest position. A larger amplitude typically represents a more intense wave.
Which property of waves is the distance between one point on a wave and that same point on wave next to it?
That distance is a definition, not a wave property. It's defined as the "wavelength".
Which property of waves is referred to as the distance between one point on a wave and that same point on the wave next to it?
The property of waves referred to as the distance between one point on a wave and that same point on the wave next to it is called the wavelength. It is often represented by the symbol λ and is measured in meters.
What property of a wave is defined as the length of time between pulses?
The property of a wave defined as the length of time between pulses is called the period. It is the time it takes for one complete cycle of the wave to pass a given point. Period is measured in seconds.
What property of a wave describes how quickly it occurs?
The property that describes how quickly a wave occurs is its frequency. Frequency measures the number of wave cycles that pass a fixed point in a unit of time, typically measured in hertz (Hz). Higher frequencies correspond to shorter time periods between wave cycles.
Sound are measured in what unit?
Sound is measured in decibels (DESS-ih-bulz), equal to 1/10 of the non-SI unit "bel" named for Alexander Graham Bell. Decibel measurements are "logarithmic", in that a increase in the number represents a much larger change in intensity (power). Decibel is abbreviated "db".
