americanradiohistory.com: Wireless World, october 1945, "Extra-terrestrial Relays. Can Rocket Stations Give World-wide Radio Coverage ?" by Arthur C. Clarke. Papirside 305-308 Citat: "...Conclusion. Briefly summarised, the advantages of the space station are as follows :- (1) It is the only way in which true world coverage can be achieved for all possible types of service. (2) It permits unrestricted use of a band at least 100,000 Mc/s wide, and with the use of beams an almost unlimited number of channels would be available. (3) The power requirements are extremely small since the efficiency of " illumination " will be almost loo per cent. Moreover, the cost of the power would be very low. (4) However great the initial expense, it would only be a fraction of that required for the world networks replaced, and the running costs would be incomparably less..."
