Stamp: 25 and Waves (Liberia 1979)
25 and Waves (Liberia 1979)
06 April (Liberia ) within release 25th anniversary of the ELWA radio goes into circulation Stamp 25 and Waves face value 35 Liberian cent
| Stamp 25 and Waves in catalogues | |
|---|---|
| Michel: | Mi:LR 1088 |
| Stamp Number: | Sn:LR 830 |
Stamp is square format.
Also in the issue 25th anniversary of the ELWA radio:
- Stamp - 25 and Waves face value 35;
- Stamp - 25th anniversary of the ELWA radio face value 1;
Stamp 25 and Waves it reflects the thematic directions:
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates oscillating electrical energy, often characterized as a wave. They can be received by other antennas connected to a radio receiver, this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications.
