1. Radio
- Manufacture of electronic devices and components in a circuit oscillator steel spider.
- A frequency range of 104 - 109 Hz.
- Used to communicate Broadcast using radio waves, sky and earth.
- Can the diffraction barrier similar in size to the wavelength.
- Precious metal properties in the reflection and absorption of electromagnetic waves for a better output current. The radio waves do not pass
- The broadcast has both FM and AM.