| 1. | Additional improvements were introduced via the Quadrature Amplitude Modulation ( QAM ) encoding system.
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| 2. | Mathematically both of these are considered a special case of quadrature amplitude modulation ( QAM ).
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| 3. | "' QAM "'is a digital television standard using quadrature amplitude modulation.
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| 4. | And this is without going into the complexities of Orthogonal frequency-division multiplexing and Quadrature amplitude modulation.
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| 5. | Some satellites transmit several BPSK streams at the same frequency in quadrature, in a form of quadrature amplitude modulation.
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| 6. | The modulation technique of the color subcarrier is quadrature amplitude modulation ( QUAM ) both in PAL and NTSC systems.
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| 7. | In the NTSC and PAL color systems, U and V are transmitted by using quadrature amplitude modulation of a subcarrier.
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| 8. | The modulation method in DVB-T is COFDM with either 64 or 16-state Quadrature Amplitude Modulation ( QAM ).
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| 9. | The 12 and 18 Mbit / s modes use OFDM with QPSK . The fastest four modes use OFDM with forms of quadrature amplitude modulation.
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| 10. | The maximum data rate assumes use of the optional 160 MHz channel in the 5 GHz band and 256 QAM ( quadrature amplitude modulation ).
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