This is wireless media..
- Transmission of waves take place in the electromagnetic (EM) spectrum.
- The carrier frequency of the data is expressed in cycles per second called hertz(Hz).
- Low frequency signals can travel for long distances through many obstacles but can not carry a high bandwidth of date while high frequency signals can travel for shorter distances through few obstacles and carry a narrow bandwidth.
- Also the noise effect on the signal is inversely proportional to the power of the radio transmitter.
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