| 21. | Other techniques, such as phase modulation or changing the phase of the carrier signal, are also used.
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| 22. | T-carrier and E-carrier signals are transmitted using a scheme called bipolar encoding, a . k . a.
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| 23. | In June 2007, the station went silent, broadcasting only an extremely low-power carrier signal with no modulation.
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| 24. | The receiver locks onto the larger carrier signal and hence will ignore the FM signal with information.
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| 25. | The Armstrong method begins by generating a carrier signal at a very low frequency, say 500 kilohertz.
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| 26. | If the dBc figure is negative, then the relative signal strength is less than carrier signal strength.
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| 27. | This carrier signal is applied to two stages in the transmitter : a balanced modulator and a mixer.
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| 28. | Because of the orthogonality property of the carrier signals, it is possible to detect the modulating signals independently.
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| 29. | If the dBc figure is positive, then the relative signal strength is greater than the carrier signal strength.
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| 30. | Prior to the 1970s, WSRN operated as a carrier signal broadcast to the campus of Swarthmore College only.
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