Radio in our impression, is a delight everyone a guy, when you have some interest on the radio after will find simple radio circuit: variable capacitor and an antenna coil of the two electronic components, then the self-adhesive hollow coil
Small series of me, I will say that the antenna coil, why? It has the function of induction, in the whole circuit it is the leading role, as the induction to connect to other electronic components. Antenna coils may give us a false impression that the antenna coil is only on the antenna. In fact, it is not surprising that this idea, antenna coil is so special. Then we expect the antenna coil to give us more surprises.