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The electric field strength at a specific point can be determined from the power delivered to the transmitting antenna, its geometry and radiation resistance. Consider the case of a center-fed half-wave dipole antenna in free space, where the total length L is equal to one half wavelength (λ/2).
Dynamic range (abbreviated DR, DNR, [1] or DYR [2]) is the ratio between the largest and smallest measurable values of a specific quantity. It is often used in the context of signals, like sound and light.
One definition of signal-to-noise ratio is the ratio of the power of a signal (meaningful input) to the power of background noise (meaningless or unwanted input): =, where P is average power.
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The resulting Linkwitz–Riley filter has −6 dB gain at the cut-off frequency. This means that, upon summing the low-pass and high-pass outputs, the gain at the crossover frequency will be 0 dB, so the crossover behaves like an all-pass filter, having a flat amplitude response with a smoothly changing phase response.
10 3: kilo-(kW)1–3 × 10 3 W : tech: heat output of a domestic electric kettle 1.1 × 10 3 W : tech: power of a microwave oven 1.366 × 10 3 W : astro: power per square meter received from the Sun at the Earth's orbit
The Tonal 2 is an in-home, all-in-one gym focused on resistance training. The device itself is like a thick mirror, with adjustable metal arms that unfold for use and then tuck away for storage. A ...
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