What is Wireless Media ?
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 freqeuncy 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.