Uplink

Real World Example

Imagine trying to shout across a crowded room to get the attention of a friend on the other side. Just like how you aim your voice to cut through the noise and reach your friend, an uplink involves sending a focused transmission from an earth station to a satellite high above. In this scenario, your voice is analogous to the signal being sent, the crowded room represents the vast space between Earth and the satellite, and your friend is the satellite receiving the message.