Why is direct radio communication from a Mars rover to Earth impractical?

Answer

It would require prohibitively large antennas and an enormous amount of power.

Due to the great distance between Mars and Earth, a direct link would demand excessive power and antennas that are too large to place on the rover.

Why is direct radio communication from a Mars rover to Earth impractical?

#Videos

NASA's Perseverance Rover Captures the Sounds of Mars - YouTube

MarsNASAcommunicationspace explorationroboticsSpirit rover