Let’s make this quick.
Get out 1 Green and 8 Grey barriers, and put them together like this:
Nice, now pull out 2 more grey barriers and 1 circle red barrier and put them into the interior like this:
Now for the antenna, aka the finishing touch. You will only need 1 grey and 1 circle green barrier, put them on the top of the teleporter base like this:
BAHAH-
anyways this guide is short but good. And why does it lookk like one of those gps tracker thingys- cant remember what they are but I immediately think of gps tracker