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Unformatted text preview: (c) SSB with pilot carrier (d) Lincompex 6. The modulation index of an AM wave is changed from 0 to 1. The transmitted power is: (a) Unchanged (b) Halved (c) Doubled (d) Increased by 50 percent 1 EET 029 - Introduction to Communications Copyright © Electrical Engineering Department, KFUPM. 7. A carrier is simultaneously modulated by two sine waves with modulation indices of 0.3 and 0.4; the total modulation index: (a) is 1 (b) cannot be calculated unless the phase relations are known (c) is 0.5 (d) is 0.7 8. Indicate the false statement regarding the advantages of SSB over double sideband, full carrier AM: (a) More channel space is available (b) Transmitter circuits must be more stable, giving better reception (c) The signal is more noise-resistant (d) Much less power is required for the same signal strength 2 EET 029 - Introduction to Communications Copyright © Electrical Engineering Department, KFUPM....
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- Spring '09
- Single-sideband modulation, Electrical Engineering Department