Electronic apparatus and method of controlling the same

An electronic apparatus is provided. The electronic apparatus includes a signal receiver configured to receive a first wireless signal; a signal transmitter configured to output a second wireless signal; and a processor configured to: identify an external apparatus based on an input key indicated by the first wireless signal as the first wireless signal is repeatedly received through the signal receiver; identify the second wireless signal based on the input key and the external apparatus; and control the signal transmitter to repeatedly output the second wireless signal while the first wireless signal is repeatedly received. Each of the first wireless signal and the second wireless signal alternately comprises a signal section corresponding to the input key and an idle section, and the processor is further configured to control the signal transmitter to output the second wireless signal during the idle section of the first wireless signal.