A traditional telephone line has a bandwidth of .................
A traditional telephone line has a bandwidth of .................
The correct option is B 4000 Hz
A traditional telephone
line has a bandwidth of 4000 Hz.
The bandwidth of a signal
depends on the amount of information contained in it and the quality of it. The
range of frequencies necessary for an analogue voice signal, with a fixed
telephone line quality (recognizable speaker), is 300 - 3400 Hz. This means
that the bandwidth of the signal is 3,100 Hz.
In electronics, Bandwidth
is used to measure electric communication. Bandwidth is shown as the difference
between the electric signal having highest-frequency and the signal having the
lowest-frequency. In computer networks, bandwidth is often used as a term for
the data transfer bit rate.
These half power points
corresponds to a fall in gain of 3dB (0.7071) relative to its maximum dB value.
Most amplifiers and filters have a flat frequency response characteristic in
which the bandwidth or passband section of the circuit is flat and constant
over a wide range of frequencies.
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). The CARSON'S BANDWIDTH for
this signal is 180KHz.
A traditional telephone line has a bandwidth of 4000 Hz.
The bandwidth of a signal depends on the amount of information contained in it and the quality of it. The range of frequencies necessary for an analogue voice signal, with a fixed telephone line quality (recognizable speaker), is 300 - 3400 Hz. This means that the bandwidth of the signal is 3,100 Hz.
In electronics, Bandwidth is used to measure electric communication. Bandwidth is shown as the difference between the electric signal having highest-frequency and the signal having the lowest-frequency. In computer networks, bandwidth is often used as a term for the data transfer bit rate.
These half power points corresponds to a fall in gain of 3dB (0.7071) relative to its maximum dB value. Most amplifiers and filters have a flat frequency response characteristic in which the bandwidth or passband section of the circuit is flat and constant over a wide range of frequencies.
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). The CARSON'S BANDWIDTH for this signal is 180KHz.
