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What is the need of digital modulation scheme?
The aim of digital modulation is to transfer a digital bit stream over an analog bandpass channel, for example over the public switched telephone network (where a filter limits the frequency range to between 300 and 3400 Hz) or a limited radio frequency band.
What is the frequency spectrum of baseband signal and can BB signal be transmitted through all the channel?
1. From the lowest frequency to the highest frequency. For telephone grade audio, it's 300 Hz to 3300 (or 3400 ) Hz. For other signals, you need to know the lowest and highest frequencies. 2. Your question (can BB signal be transmitted...) cannot be answered. As it stands, the answer is no. Reword the question so that it can be answered.
How does the 3 in the number 3400 compare to the 3 in the number 300?
The 3 in 3400 is ten times more than the 3 in 300.
Why voice signal range is 300-3400 Hz?
Because that is the bandwidth required to make a voice signal intelligible. While our hearing, under good conditions of health, is 20-20000 Hz, we do not need that entire range in order to understand the spoken voice.
What is the average frequency of human?
The average frequency of a human voice during speech ranges from 125 to 250 Hz for males and 210 to 300 Hz for females. The frequency of coughing or clearing the throat can reach up to 600 Hz.
What is 300 meters in KHz. And what formula does the conversion?
300 meters = 1000 kHz. Wavelength in meters / 300 = frequency in megahertz * 1000 = frequency in kilohertz.
What is the frequency range of microwaves light?
Microwave light has a frequency range of approximately 300 MHz to 300 GHz.
Why do you use modulation in gsm?
in the case of communication through gsm technology we transmit our voice frequency to somewhere from the origin. normally human voice frequency lays between 300-3400khz. if all the people tends to transmit their voice, the signal wil be distroyed due to interference. also theoretically it need a very long antenna to transmit a low frequency. therefore it is necessary to modulate each and every signal to a high frequency carrier to transmit without any interference and make possible communication mohamed zawahir +94772260383
What are five common applications of waves in the electromagnetic spectrum?
LF - Law Frequency (10 to 300 KHz)MF- Medium Frequency (300 to 3000 KHz)HF- High Frequency (3 to 30 MHz)VHF- Very High Frequency (30 to 300MHz)UHF - Ultra High Frequency (300 to 3000MHz)
What is the bandwidth of Telephone signal?
A tradition phone line has a sampling rate of 2400 baud but a baud is not a bit. A traditional phone line can transmit at close to 100 kbit/sec. To cleanly transmit a voice takes about 10 kbit/sec.
What the periodic time and frequency for an oscillating body that makes 300 complete oscillations in half a minute?
The frequency is 300/30 = 10 Hz The time period is 30/300 = 0.10 seconds
What frequency range is the Very High Frequency band?
30 MHz to 300 MHz
