![]() ![]() The main signal dissipates into multiple reflected signals causing substantial signal downgrade and may cause loss of received signal. RF encounters some type of uneven surface and is reflected into multiple directions. 1.50 4. We expect to see reflections off a smooth surface. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface. Figure 14.19 shows a set of headphones that employs a clever use of sound interference to cancel noise. Law of Reflection: The law of reflection states that the angle of reflection equals the angle of incidence: r i. In fact, one way to support that something is a wave is to observe interference effects. Occurs when a signals wavelength is larger than pieces of a medium the signal is reflecting from or passing through. Interference happens to all types of waves, including sound waves. RF shadow can occur causing dead coverage zones or receive degraded signals.
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