best one out there at the moment is on MRO - clicky
(, Tue 21 Jul 2020, 18:06, Reply)
Or linky no worky.
You could have fucking huge lightweight expanding dish antennas on fairly small satellites, power generation and battery storage would be the limiting factors, I think. Like, if your dish obscures your solar panels, you're not going to be able to transmit for very long.
Oh and just one big dish sat wouldn't cut it, you'd want a network dense enough to maintain constant line of sight with Earth's comms network.
(, Tue 21 Jul 2020, 19:10, Reply)
it was to the comms system on the Mars Reconnaisance Orbiter, 3 metre antenna, 6 Mbit/s, but now only 2 iirc
(, Tue 21 Jul 2020, 22:18, Reply)
Yeah that's what I'd call a fairly large satellite. 1-2t. Pack a dozen or so of them in a Starship and Bob Kerman's your uncle.
(, Tue 21 Jul 2020, 23:14, Reply)