unit2HW Electronic Communications

May 5th, 2015
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If a carrier is amplitude modulated what causes the sideband frequencies? The non-linear mixing of the carrier and intelligence frequencies. 
 4. What determines the bandwidth of emission for an AM transmission? It is twice the frequency of the highest audio frequency transmitted. The upper sideband is fc +FM where fc is the carrier frequency and FM is the modulation (audio) frequency .

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unit2HWMatthew VaughnMr. KoffiElectronic Communications01/15/2015Unit 2 Assignment 1: Amplitude ModulationChapter 2 (pp. 111-113)2. A 1500 kHz carrier and a 2 kHz intelligence signal are combined in a non-linear device. List all the frequency components produced. 1498, 1500, and 1520KHz3. If a carrier is amplitude modulated what causes the sideband frequencies? The non-linear mixing of the carrier and intelligence frequencies. ? 4. What determines the bandwidth of emission for an AM transmission? It is twice the frequency of the highest audio frequency transmitted. The upper sideband is fc +FM where fc is the carrier frequency and FM is the modulation (audio) frequency .The lower sideband is fc - FM. The total bandwidth is 2*FM 5. Explain the difference between a sideband and a side frequency. A sideband carries the modulation or "information". in old fashioned AM and FM transm

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