This achievement is part of the optional quest “Mixed Signals”. You should receive this quest after encountering the Nightmare 2 or 3 times (you can still get this achievement without using any Neuromods, you can also still get this achievement if you don’t kill a Nightmare and just hide from it). However, buying a couple Typhon Abilities will advance how early you can be given this quest.
To guarantee receiving this quest, buy Typhon abilities when you acquire Neuromods, when you encounter your first Nightmare, make sure to kill it and then wait in that area for January to call you. (Also don't kill January!)
You will receive a call to begin this quest, which requires you to retrieve an item to repair a satellite. The item is marked on the map, it is in the Machine Shop in Hardware Labs. You will see the item underneath a glass panel on the floor, to access it you need to go further into the room where you will find a small Panel fairly close to the window which you will need to repair to use. Once repaired you can open The Moon Door, which will allow you to grab the item.
Following the quest you head out to the Talos I Exterior where you will need to approach the small satellite and place the item in a slot (due to low gravity it can be a little tricky, so make sure you’re looking directly at the hole the marker is pointing to and spam
).
Once you complete the quest you will have a new audiolog called
"Satellite Signal: Attract Nightmare" (Data > Audio Logs), simply play it to summon a Nightmare and unlock your achievement. I recommend quicksaving before playing the audio to avoid having to deal with the Nightmare.