The frequency band 300 Htz to 3400 Htz is alloted for voice channel. That's it
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.
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.
The 3 in 3400 is ten times more than the 3 in 300.
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.
The frequency of a typical household microwave oven is around 2.45 gigahertz (2.45 billion cycles per second).
300 meters = 1000 kHz. Wavelength in meters / 300 = frequency in megahertz * 1000 = frequency in kilohertz.
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
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)
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.
30 MHz to 300 MHz
The frequency is 300/30 = 10 Hz The time period is 30/300 = 0.10 seconds
Use the fact that the frequency, multiplied by the wavelength, is equal to the speed of a wave. In a vacuum, light will move at 300 million meters/second; just divide this speed by the frequency.