(a)[2]
State two advantages of sending data in digital, rather than analogue, form.
(b)
An analogue signal is to be sent in digital form. The transmission system can be shown in block form as in Fig. 4.1.
(b(i))[1]
In Table 4.1, underline the least significant bit (LSB) in the digital signal at $0.20\,\text{ms}$.
(b(ii))[3]
Complete Table 4.1 by filling in the entries.
(c)[3]
A single bit from the output of the digital-to-analogue converter corresponds to an output analogue signal of $1.0\,\text{mV}$. Assume that the conversion and transmission do not cause any time delay. On the axes of Fig. 4.3, show how the output from the digital-to-analogue converter varies with time $t$.