| 41. | In the fog, sounds surge and fade like weak radio signals.
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| 42. | For the reverse direction, radio signals are transmitted by the mobile.
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| 43. | The station provided the town with its first local radio signal.
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| 44. | A satellite will test whether beaming radio signals between satellites can improve weather forecasting.
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| 45. | As early as 1939, British decoders unscrambled radio signals from German special police units.
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| 46. | Now, why do you need to block the radio signal?
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| 47. | Cellular phones emit a radio signal every 15 minutes that identifies them to transmitters.
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| 48. | Yet the radio signal extends across them all, disrespecting boundaries,
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| 49. | The Ukrainian Broadcasting Station transmitted its first radio signal here.
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| 50. | Some combinations of metal tooth fillings can receive radio signals.
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