ground-based electronic omni directional satellite communications antenna
1History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
2Defence Research and Development Organisation — Sanskrit: बलस्य मूलं विज्ञानम् Strength s Origin is in Science [1] Agency overvi …
3Maritime mobile amateur radio — An emergency portable boat radio transceiver, Museal ship S/S Sołdek in Gdańsk, Poland Most countries amateur radio licences allow licensed operators to install and use radio transmission equipment while at sea. Such operation is known as… …
