Ok, you didn't originally mention the SRV data link scanner so I defaulted to the ship Data Link Scanner. The scanner in the SRV is used to scan data link antennas within ground stations or outposts on the planets. there are specific missions to scan them (private ports will normally be illegal, and public ports will be legal). They'll appear as a short round tower in which the middle portion will raise up when you get close enough. Once you get it to raise, you can lock the data port and scan it by holding down the appropriate fire button (whichever button you've assigned to it in your fire groups). You'll have to hold it for a few seconds and then you'll get a message that you've received some data. Normally these towers in outposts will be surrounded by a red square on you ground map. That tells you its normally an illegal (private) server and will be guarded by skimmers or defense turrets you'll have to deal with (scan and kill normally). The towers within cities will normally come in groups of 4 or more, and will have to be scanned within a certain time period (which will show on your screen and add time as you find/scan them). These city folks tend to get fairly hissy and will shoot you in a heartbeat if you don't get the scan done in time, so be prepared to run like the wind!! There are several other forum posts on how to handle these situations. Good luck!!\