link uptime is innate in bandwidth , which hasn ' t meant the width of an AM radio channel which is a factor in information capacity for a looooong time . it ' s always bugged me how stingy space systems are about adding more memory it ' s light and it ' s cheap and it ' s almost no cost to qualify a multiple , and it gives you way more flexibility and error marginand if the probe is a rover , it ' s got gobs of spare power when it comes time to stop and upload the data to the orbiter , or even beam it straight to Earth . they ' re wasting capability there by not having higherpowered , higherspeed , higherreliability uplink that can dump the whole load in a couple of minutesit costs so much just to send wheel nuts up there that you might as well get better cost efficiency by blowing out your observing and computing and communicating value