11Bandwidth of a conventional AM signal is:ATwice the highest message frequencyBHalf the carrier frequencyCInfiniteDEqual to the message frequencyView AnswerDiscussWorkspaceReportSaveEasy
12In frequency modulation, the carrier's ____ varies with the message.APower onlyBAmplitudeCFrequencyDPhase onlyView AnswerDiscussWorkspaceReportSaveEasy
13An AM transmitter has a carrier power of 10 kW and m = 1. The total power is:A12.5 kWB10 kWC15 kWD20 kWView AnswerDiscussWorkspaceReportSaveMedium
14Pre-emphasis in FM boosts:ANoiseBHigh-frequency audio components before transmissionCLow frequenciesDThe carrierView AnswerDiscussWorkspaceReportSaveEasy
15Overmodulation in AM (m > 1) causes:ANo effectBHigher efficiencyCDistortion of the envelopeDLower bandwidthView AnswerDiscussWorkspaceReportSaveEasy