In ............... the bandwidth of modulated signal must be 10 times the bandwidth of modulating signal.
In ............... the bandwidth of modulated signal must be 10 times the bandwidth of modulating signal.
The correct option is A FM radio
In FM radio the bandwidth of modulated signal
must be 10 times the bandwidth of modulating signal.
FM radio uses frequency
modulation, of course. The frequency band for FM radio is about 88 to 108 MHz.
The information signal is music and voice which falls in the audio spectrum.
The full audio spectrum ranges form 20 to 20,000 Hz, but FM radio limits the
upper modulating frequency to 15 kHz (cf.
To calculate the CARSON'S
RULE bandwidth occupancy of this signal, add the highest audio frequency to the
peak deviation (15KHz + 75KHz = 90KHz). Then multiply by two to include both
the upper and lower sideband (90KHz X 2 = 180KHz).
In analog frequency
modulation, such as FM radio broadcasting of an audio signal representing voice
or music, the instantaneous frequency deviation, the difference between the
frequency of the carrier and its center frequency, is proportional to the
modulating signal.
FM is called a constant
bandwidth system because: ... The amplitude of a frequency modulated signal
remains constant. 2. The power in the transmitted signal remains constant.
In FM radio the bandwidth of modulated signal must be 10 times the bandwidth of modulating signal.
FM radio uses frequency modulation, of course. The frequency band for FM radio is about 88 to 108 MHz. The information signal is music and voice which falls in the audio spectrum. The full audio spectrum ranges form 20 to 20,000 Hz, but FM radio limits the upper modulating frequency to 15 kHz (cf.
To calculate the CARSON'S RULE bandwidth occupancy of this signal, add the highest audio frequency to the peak deviation (15KHz + 75KHz = 90KHz). Then multiply by two to include both the upper and lower sideband (90KHz X 2 = 180KHz).
In analog frequency modulation, such as FM radio broadcasting of an audio signal representing voice or music, the instantaneous frequency deviation, the difference between the frequency of the carrier and its center frequency, is proportional to the modulating signal.
FM is called a constant bandwidth system because: ... The amplitude of a frequency modulated signal remains constant. 2. The power in the transmitted signal remains constant.
