How to unlock: You must complete The First Step side quest and talk to Preston Garvey (in the place where he can be currently found). The quest is unlocked randomly.
- Clean the marked location
- Build and activate the radio transmitter
- Talk to Preston Garvey
This quest is one of the many random ones connected to the Minutemen faction. You can receive it after you've completed The First Step side quest, talked to Preston Garvey and agreed to keep helping the Minutemen. You may be asked by Preston to place a radio beacon in some random location in the game's world. Use your Pip-Boy to find out where you need to go. Once you've reached your destination eliminate all raiders or monsters which may occupy the location where you've been sent to.
Find a workshop after the fighting has ended. Choose the Power tab and then Miscellaneous tab. You must construct a Recruitment Radio Beacon - place this object somewhere in the area (the tower must turn green).
The radio beacon needs energy to function properly and this means that you must also place a generator nearby. Once again open the Power tab and then choose the Generator category. You may choose the most basic object from the list: Generator - Small. Place the generator somewhere close to the beacon, approach it and choose the Attach Wire option from the list. Face the radio beacon and finalize the connection. The screenshot shown above shows how this connection should look like. You'll automatically receive bottlecaps after activating the radio beacon.
You may now return to Preston Garvey in Sanctuary and report him on your successful mission. He should have some new mission for you.
Quest rewards: Experience points, bottlecaps, new side quest.