A transmitter$-$receiver telecommunication link is based on two half$-$wave dipole antennas: one $($transmitter$)$ is a $1-$cm$-$diameter copper rod with conductivity c $=5\mathrm{.}8$x$107$ S$/$m and the second $($receiver$)$ is also made out of a copper rod but with a square cross section with a side a $=3$ mm$.$ Both antennas are vertically oriented and perfectly point towards each other. They are separated by $10$ km$.$ Assume that the transmitter antenna is driven by the current with the amplitude I$0=2$ A and emits radiation at $91\mathrm{.}5$ MHz