Q$\mathrm{.}3)$ You want to transmit the message $?=$

Encode this textual message into a sequence of bita, uxing $5-$bit ASCII codity, fallowed by a sixth bit for error detection, per charncter. This aixth bit is chosen wo thist the output of NAND gate is one. How many total bits are there in the moange?

Assuming the bit duration $=10,$ plot the above signal tuing:

a$)$ The Unipolar RZ line code and its ASK modulated sigsal.

b$)$ The NRZ$-$S line code and its FSK modulitad rlfonl.

c$)$ The NRZ$-$M line code and its $4$ASK modulated slonal.

d$)$ The NRZ$-$L line code and its $4$FSK modulated signal.

$25$ mark