| 11. | Heather Burton appeared in The Carrier Frequency revival.
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| 12. | Carrier frequency is now at 1 %.
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| 13. | An amplitude-modulated signal has frequency components both above and below the carrier frequency.
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| 14. | Each message signal ( each phone call ) is modulated on a specific carrier frequency.
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| 15. | During World War II, all AM on carrier frequencies of 78 and 120 kHz.
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| 16. | In October 1931 the station's carrier frequency changed again, to 630 kc.
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| 17. | Where \, \ ! \ nu is the frequency shift relative to the carrier frequency.
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| 18. | Use of two carrier frequencies permitted ground receivers to reduce navigation errors caused by ionospheric refraction.
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| 19. | The carrier frequency was to be stable to one part in 10 8 over a month.
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| 20. | Carrier frequencies above 5 kHz are likely to cause bearing damage unless protective measures are taken.
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