Somewhat yes, it shows you a remote contact position and his course and speed (for interception purposes of course) . However if it is at 60 km away, as it was in your situation, the game will still render THAT SHIP in campaign when you close in on him to that 25 km distance, in other words anything that is beyond renderization limit does not even exist, untill you close in to a proper distance, if you get the idea
It's not so important for casual play, just some technical details to let you know how SH3 works in reality