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In physics, field strength is the magnitude of a vector-valued field (e.g., in volts per meter, V/m, for an electric field E). For example, an electromagnetic field has both electric field strength and magnetic field strength. As an application, in radio frequency telecommunications, the signal strength excites a receiving antenna and thereby induces a voltage at a specific frequency and polarization in order to provide an input signal to a radio receiver. Field strength meters are used for such applications as cellular, broadcasting, wi-fi and a wide variety of other radio-related applications.

See also

• Dipole field strength in free space
• Field strength tensor
• Signal strength in telecommunications

References

1. "What is electric field strength and how is it measured?". WhatIs.com. Retrieved 2022-11-10.
2. "Field Strength Monitors & Probes". atecorp. Retrieved November 10, 2022.

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