I've done very little SRV docking except with my ship, so I might be missing something obvious, but for a bit of a lark, while I was at the Dweller's base, I thought I'd deploy my SRV, have a look around and maybe find some minerals. All went fine until, I tried getting back. I requested docking permission and headed for the blip on my radar, but no gate or anything was there, so then I went looking for my ship and eventually got destroyed for blocking the landing pad. 
Any tips?
Any tips?