Electric modulation

#1. The bandwidth produced when a radio frequency (RF) of 4716 KHz is amplitude modulated with an audio frequency (AF) of 6 KHz is:

• A6 KHz
• B3 KHz
• C12 KHz
• D9 KHz

#2. Which of the following statements concerning AM is correct?

• Athe amplitude of the RF is modified by the frequency of the AF
• Bthe amplitude of the RF is modified by the amplitude of the AF
• Cthe frequency of the RF is modified by the frequency of the AF
• Dthe frequency of the RF is modified by the amplitude of the AF

#3. Which of the following is an advantage of single sideband (SSB) emissions?

• AMore frequencies available
• BReduced power requirement
• CBetter signal/noise ratio
• DAll of the above