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802.11ax uses 1024-QAM quadrature amplitude modulation, and each symbol bit transmits 10-bit data (2^10 = 1024). Therefore, compared with 802.11ac, 802.11ax increases data throughput of a single spatial stream by 25%. Figure 1-11 Constellation maps of 256-QAM and 1024-QAM The successful ...
One factor that does not affect swing rate is the weight of the bob. Increase the weight on the pendulum and gravity just pulls harder, evening out the extra weight. As School for Champions points out, the force of gravity on any falling object is the same no matter the mass of the bo...
(in Hertz). A fixed amplitude sine wave is swept through all the frequencies of interest while an analyzer tracks the output to measure the frequency response. In most cases, the ideal system will produce the same amplitude at all frequencies, so the output equals the input. This is often ...
They are evanescent waves, thus the amplitude of these perturbations decreases with the distance to the interface. Let us notice, moreover, that in the framework of LEFM, they do not carry any perturbation of shear stress directly on the interface, but only in the bulk close to it, because...
is an expression of the relative intensity of the energy output of a visible light source. It can be expressed as a total energy value, which is different for each of the curves in the Figure 2. Another way to express brightness is the amplitude of the wavelength where the intensity is ...
Overall, the channel capacity, the bandwidth, and the signal to noise ratio, all affect the maximum capacity of communications channels. Moreover, this discovery belongs to Claude Shannon, and he makes this correlation during World War II. In today’s fields of electronics and science...
The center wavelength is the wavelength measured at the midpoint of a half-amplitude line in the transmit spectrum. Lasers of different types or two lasers of the same type may have different center wavelengths due to factors such as techniques and production processes. Even the same laser may...
How will the amplitude affect the speed of sound? What is the frequency of a sound wave in air at 20 C that has a wavelength of 0.4 m? What does the sound frequency mean? a. The higher the frequency, the quieter it is. b. The higher the frequency, the lower the pitch. c...
Why does amplitude not affect wave speed? What causes a tidal current? Why is the contour interval included on a topographic map? What causes day and night? What factors contribute to global winds? Why does coverage vary among amplicons?