Subject: Science
Digital communication involves a source, input transducer, encoder, modulator, channel, demodulator, decoder, output transducer, and output signal. Analogue communication is analog, while digital communication is digital. The transmitted signal is analog but not programmable. Coding techniques can detect errors, and FDM and TDM are used for multiplexing.
Analogue Communication | Digital Communication |
The transmitted modulated signal is analog in nature. | The transmitted signal is digital, i.e., a train of digital pulses. |
It is not possible to code. | Coding techniques can be used to detect and correct the errors. |
FDM is used for multiplexing. | TDM is for multiplexing. |
Not suitable for transmission of secret information in military applications. | Due to coding techniques, it is suitable for military applications. |
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