Introduction to Satellite Communication » Exercise - 143. First geostationary satellite in the world was launched in : (a) 1952 (b) 1965 (c) 1975 (d) 1980
Introduction to Satellite Communication » Exercise - 122. For satellite communication the frequency should ….. the critical frequency of ionosphere. (a) Equal to (b) Less than (c) More than (d) None of the above
Introduction to Satellite Communication » Exercise - 145. Apple was powered by : (a) Nackel-cadmium batteries (b) Solar panels (c) Both a and b (d) None of these