What is the power capacity on those Rovers on Mars? Where is the television broadcast system that is transmitting all this stuff back to Earth?

[PropertiesofwaterProvesFE]

Cannot understand why it takes 500,000volts of AC power to broadcast radio and TV signals on Earth for just 50 miles.
Only DC power and small dishes broadcast millions of miles seemingly flawless and clear.

 

[PropertiesofwaterProvesFE]

Seems impossible sayings how it takes over 500,000 AC power to transmit 50 miles on Earth 200 foot plus tall antenna???

 

[PropertiesofwaterProvesFE]

Why is research limited on the subject of power supplies?

 

[Ovidio]

Cannot understand why it takes 500,000volts of AC power to broadcast radio and TV signals on Earth for just 50 miles.
Only DC power and small dishes broadcast millions of miles seemingly flawless and clear.

I think that terrestrial broadcasters transmit 360° all around and in a no so narrow bandwidth. Deep spacecrafts transmit in a very narrow bandwidth, in a very very directional antenna that must be always exactly pointed toward Earth, and futhermore data have a very specific pattern. This way al the power is concentrated in a very narrow angle and the ground antenna can “easily” filter the data from the noise. The cost in term og performance of this technology is the speed, very slow from deep space probes (like modems we had decades ago). That’s why we see many pictures but very few movies from rovers and that’s why it can take days to download data from very far probes. I know that new technologies are under evaluation, like laser beams etc…

 

[COLGeek]

For background reading:

Perseverance Rover Components - NASA Science

The Mars 2020 rover, Perseverance, is based on the Mars Science Laboratory's Curiosity rover configuration, with an added science and technology toolbox. An important difference is that Perseverance can sample and cache minerals.

mars.nasa.gov

Perseverance Rover Components - NASA Science

The Mars 2020 rover, Perseverance, is based on the Mars Science Laboratory's Curiosity rover configuration, with an added science and technology toolbox. An important difference is that Perseverance can sample and cache minerals.

mars.nasa.gov

Perseverance (rover) - Wikipedia

en.wikipedia.org