| 21. | All chronometers and watches should be checked regularly with a radio time signal.
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| 22. | BBC radio stations broadcast the " six pips " of the Greenwich Time Signal.
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| 23. | The Ottawa, Ontario, Canada broadcasts an exclusive digital time signal encoded using AFSK modulation.
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| 24. | The above method is primitive real-time signal optimization at best.
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| 25. | The Russian time signal RWM transmits an additional correction dUT1 in 0.02 s increments.
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| 26. | The format of the service is similar to that of radio time signal services.
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| 27. | This procedure combines encryption algorithms already in use with time signals delivered by Galileo.
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| 28. | It provides increased accuracy thanks to its use of time signals from Galileo satellites.
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| 29. | It also operates the JJY, a low frequency time signal.
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| 30. | "We're looking for him to sustain this and not send a one-time signal ."
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