An RF meter (radio frequency meter) is a specialized instrument used to detect and measure the strength and characteristics of radiofrequency (RF) signals—the invisible electromagnetic energy that wireless technologies like cell phones, Wi-Fi, Bluetooth, and other transmitters emit.
RF meters translate these electromagnetic waves into readable data, showing how strong an RF signal is and sometimes identifying its frequency or power levels. They are widely used in technical, telecommunications, and engineering settings to analyze signal integrity, troubleshoot interference, and verify proper operation of wireless systems.
Different RF meters range from handheld units for general environmental monitoring to more advanced instruments that can measure amplitude, frequency, modulation, and power levels across specific bands of the radio spectrum. These tools help technicians, researchers, and hobbyists understand the electromagnetic landscape by giving real-time feedback on where RF energy is concentrated and how it behaves in a given space.
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