It is produced by the accelerated motion of charges in conducting wires. (i.e., by oscillating electric circuit).
Its frequency range is 500 KHz to about 1000 MHz .
Its wavelength range is = 10^-2 m to 10^4 m.
The are reflected, refracted and diffracted, used in radio and T.V communication.
- Amplitude modulated (AM) Band
- Frequency 530KHz - 1710 KHz
- Used in ground wave propagation
- Short wave (SW) Band
- Frequency-1710 KHz - 54 MHz
- Used in sky wave communication
- Television waves
- Frequency-54 MHz - 890 MHz
- Ultra high frequency (UHF) Band
- Frequency 300 MHz - 3000 MHz
- Used in cellular phone communication.
- Frequency modulated (FM) Band
- Frequency range 88 MHz -108 MHz
- Used for FM communication