1. A broadcast transmitter radiates 20 kW when the modulation percentage is 75. Calculate carrier power and power of each sidebands. 2. The total antenna current of an AM transmitter is 5 A. If modulation index is 0.6 Calculate the carrier current in antenna. 3. The RMS antenna current of AM signal increases by 15% over its unmodulated value, when sinusoidal modulation by 1 kHz signal is applied. Determine the modulation index. 4. A certain AM transmitter radiates 10 KW with the carrier modulated, and 11.8 kw when the carrier is sinusoidally modulated. Calculate the modulation index. If another sine wave corresponding 30% modulation is transmitted simultaneously, determine the total power radiated.
1. A broadcast transmitter radiates 20 kW when the modulation percentage is 75. Calculate carrier power and power of each sidebands. 2. The total antenna current of an AM transmitter is 5 A. If modulation index is 0.6 Calculate the carrier current in antenna. 3. The RMS antenna current of AM signal increases by 15% over its unmodulated value, when sinusoidal modulation by 1 kHz signal is applied. Determine the modulation index. 4. A certain AM transmitter radiates 10 KW with the carrier modulated, and 11.8 kw when the carrier is sinusoidally modulated. Calculate the modulation index. If another sine wave corresponding 30% modulation is transmitted simultaneously, determine the total power radiated.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Transcribed Image Text:1. A broadcast transmitter radiates 20 kW when the modulation percentage is 75.
Calculate carrier power and power of each sidebands.
2. The total antenna current of an AM transmitter is 5 A. If modulation index is 0.6
Calculate the carrier current in antenna.
3. The RMS antenna current of AM signal increases by 15% over its unmodulated value,
when sinusoidal modulation by 1 kHz signal is applied. Determine the modulation index.
4. A certain AM transmitter radiates 10 KW with the carrier modulated, and 11.8 kw
when the carrier is sinusoidally modulated. Calculate the modulation index. If another
sine wave corresponding 30% modulation is transmitted simultaneously, determine the
total power radiated.
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