| 11. | But focusing and manipulating radio beams ( including microwave beams ) require a very different set of technologies.
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| 12. | On the ground, to obtain directional radio beams with a well-defined navigable course, crossed loop antennas were used initially.
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| 13. | Vatican Radio beams the pope's words around the world from a forest of antennas on the northern outskirts of Rome.
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| 14. | The Cybermen want the Wheel intact so they can use its radio beam for their fleet to home in on.
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| 15. | The subscription-based digital radio service that XM Radio beams down from satellites was initially intended for listening while on the road.
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| 16. | Were the alternative media locked in their own insular world, in which only National Public Radio beams in news from the outside?
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| 17. | You could imagine a system where the phone can send highly directional radio beams and aim them at the nearest contact point.
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| 18. | The Luftwaffe addressed this issue first by using a series of radio beams to direct aircraft and indicate when to drop bombs.
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| 19. | Vatican Radio beams the pope's words around the world from a forest of antennas erected 50 years ago in a sparsely populated area.
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| 20. | Eventually, radio beams were used to create a national network of airways to link major cities and define safe corridors through high terrain.
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