| 21. | Both pendulums were seconds pendulums, about 1 meter ( 39 Hz timing signal.
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| 22. | The format of the service is similar to that of radio time signal services.
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| 23. | The Russian time signal RWM transmits an additional correction dUT1 in 0.02 s increments.
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| 24. | The above method is primitive real-time signal optimization at best.
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| 25. | The Ottawa, Ontario, Canada broadcasts an exclusive digital time signal encoded using AFSK modulation.
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| 26. | BBC radio stations broadcast the " six pips " of the Greenwich Time Signal.
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| 27. | It provides increased accuracy thanks to its use of time signals from Galileo satellites.
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| 28. | This procedure combines encryption algorithms already in use with time signals delivered by Galileo.
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| 29. | One sort of public time signal is a striking clock.
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| 30. | A relatively low-powered transmitter can overwhelm the weak timing signals broadcast by orbiting satellites.
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