⟩ Line of sight is? a) Straight Line b) Parabolic c) Tx & Rx should be visible to each other d) none of the above
The line of sight is the distance or the path up to which the the TX and the RX is visible to each other because for the proper transmission there should be a ink or connectivity b/w the TX and the RX e.g. at the RF transmission the microwave links are required for the connectivity and data transmission.