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Question

A telephone line has a bandwidth of almost ............ for data transmission.

A
1000 Hz
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B
24 Hz
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C
10 Hz
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D
2400 Hz
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Solution

The correct option is D 2400 Hz

A telephone line has a bandwidth of almost 2400 Hz for data transmission.

A telephone line has a bandwidth of almost 2400 Hz for data transmission. The total bandwidth required for AM can be determined from the bandwidth of the audio signal: BWt = 2 x BWm.

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.

Telephone Cabling using Cat5 or UTP. Nowadays, Cat5 cable is commonly used instead of station wire for telephony. In which case, start with the blue pairs and use the orange pairs for the second line. Nowadays, Cat5 cable is commonly used instead of station wire for telephony.

Data transmission is the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices. It enables the transfer and communication of devices in a point-to-point, point-to-multipoint and multipoint-to-multipoint environment.


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