| 1939 L. del Rey Habit in L. del Rey Early del Rey (1975) 64
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The radio signals came through on the ultrawave every so often, but the pep-talk description of the thrilling contest for endurance racing didn't mean much when I put it up against the facts.
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| 1951 I. Asimov Foundation Trilogy—Foundation ii. i. 40
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The news that the Terminus City ultrawave set received two hours ago.
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| 1951 I. Asimov Foundation Trilogy—Foundation iii. vi. 122
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Use the ultrawave sets there to contact other portions of the planet.
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| 1951 L. Brackett Starmen of Llyrdis in Startling Stories Mar. 60/1
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Kerrel's face appeared on the small screen. There was no need now for the ultra-wave and the ordinary visiphone unit had been cut in.
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| 1954 J. Blish Beep in Galaxy Sci. Fiction Feb. 15/1
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If I were to send orders by ultrawave to my Three Ghosts agent, he'd have to wait three hundred and twenty-four years to get them.
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| 1970 R. Silverberg Tower of Glass in Galaxy Mag. Apr. 57/1
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To the east is the laboratory where the tachyon-beam ultrawave communications equipment is being fabricated—a small pink dome which usually contains ten or a dozen technicians, patiently assembling the devices with which Krug hopes to send messages to the stars.
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| 1973 A. D. Foster Bloodhype 29
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That, coupled with what he would make off the Largess expedition, ought to provide enough to refinish the entire screen. Plus getting an ultrawave booster for Ben, the Umbra's comm operator.
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| 1992 V. Vinge Fire upon Deep i. xiv. 93
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Jefri thinks it may be possible to use the ship's ultrawave to call for help from others like his parents.
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