Fallout 4

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Settlement Radar Stations for detecting nearby Enemies with optional Drones for protection

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Settlement Radar Station

Version 3.0


Workshop craftable Radar Stations for detecting enemies near a Settlement, with optional Drone Stations for enhancing defensive measures.


  • Radar Stations periodically scan the area for Enemies and mark them with Red Diamonds

  • Two types of Radar Station: self-powered and automatic power-switching upon enemy detection

  • Best when placed in a central location within each Settlement

  • A single Radar Station is generally sufficient for a Settlement

  • Very large Settlements (such as Sanctuary) can benefit from having a pair of Radar Stations spread widely apart, or a single Large Radar Station

  • Power-Switching Radar Stations can be used to automatically activate alarms (and other defenses) when threats are detected

  • Five levels of Drone Defenders can be constructed. The Drone Defender has blue wing-tips and conforms to defensive protocols (primarily line-of-sight dependent) for protecting a choke point or priority hot spot, and only rarely ventures outward to confront more distant threats. They rely upon Radar Stations to identify valid targets.

  • Five levels of Drone Strikers can be constructed. The red wing-tip Drone Striker has advanced seek-and-destroy protocols that enable it to aggressively assault threats both near and far. Strikers have greater fire-power than Defenders, but significantly less armored resistance to damage.  They accept targets validated by Radar Stations but are also capable of operating autonomously.

  • Radar Stations and Drones can be found in the DEFENSE>TURRETS section of the Workshop menu

  • Warning Lights that can be crafted using a Workshop in its POWER > LIGHTS section

  • See the high-altitude screenshots of Abernathy Farm, Sunshine Tidings Co-op, and Sanctuary

  • For additional details, see the Holotape that is added to the Player character's inventory

  • This mod can be used with my Whirligig Sentry mod without any issues

The purpose of Radar Stations is to make the presence and location of nearby enemies known to you - the Player Character - so that you can deal with them more effectively. They are not intended to be a meaningful defensive measure when your Player Character is away from a Settlement.

The game will "unload" playing areas ("cells") as the player character travels to more distant locations. When that occurs for a Radar Station, it shifts into "Standby" and waits to resume scanning until its location is once again reloaded by the game.

WARNING: This mod is not intended to be compatible with "bad guy" Player Characters. Might work, or might not. No support provided for being friendly / allied with "bad guy" NPCs.

WARNING 2: Gauss Cannons and Disruptors have very localized (short radius) Splash/AOE damage upon impact. Hence their potential to harm nearby friends and allies. So there is potential risk in constructing those drones -- if an NPC is accidentally harmed by a Drone during a fight, that NPC has a chance of deciding that the Drone is an enemy, which then causes conflict between them; it is a base-game feature.


Install using a mod manager, or unpack the mod and copy the .ESP/.ESL and .BA2 files into the game's \DATA folder, then enable the mod.

Place this mod's .ESP/.ESL file anywhere in the "Load Order" sequence.

Install ESP or ESL?

If you are reaching the maximum allowed number of .ESP installs, and want to install more mods, then install the .ESL versions of those new mods ...

Back-in-the-day, many players were reaching the maximum number of allowed .ESP installs, so Bethesda introduced a way to permit more via .ESL files.

The Light Master (.ESL) file is an optimized file format introduced in the Fallout 4 v1.10 update. Using Light Master files allows more plugins (mods and patch mods) to be installed than previously possible with .ESP files. For .ESP files there is a limit of 255, whereas a maximum of 4096 .ESL files can be loaded (but in practice is difficult to achieve due to other technical constraints).

Both file types can be used together, which means you can install just .ESP files if your install count remains below the .ESP maximum, or just .ESL files if your count remains below the .ESL maximum, or some of both such as using .ESP files initially and then adding .ESL files thereafter when the maximum for .ESP has been reached.

ESP/ESL Compatibility:

Saved games that currently use an .ESP mod are not compatible with an .ESL of that same mod. Similarly, saved games that are currently using the .ESL for a mod are not compatible with an .ESP of that same mod. That is a basic game restriction in terms of switching between .ESP and .ESL versions of a mod. There is no "fix" or workaround -- it is inherent in the game's design.

So, to switch from .ESP to .ESL, or from .ESL to .ESP, you must:

1 ) scrap everything created with this mod
2 ) uninstall the mod
3 ) load the current saved game
4 ) create a new saved game (while that mod is not installed)
5 ) install the other download of that mod
6 ) resume play with that newly created saved game

Constructed items that were not scrapped will no longer be present in the .ESL version.


No special requirements.  DLCs are not needed.

Compatibility Limitations:

This mod and my other mods might or might not work correctly with Sim Settlements and Transfer Settlements. The same is true for mods which adversely affect my mods by altering base-game locations and base-game content which my mods depend upon.

There is no support for compatibility issues with those, and there are no plans to provide compatibility patches.

Known Issues:

  • If you are not able to connect a power source to a Radar Station that has a Power Switch: create a new saved game, load that newly created saved game, and then try connecting the power source once more. Similarly if it can't be selected while in Workshop mode after being built.

  • When deployed, Radar Beacons will usually be placed on the ground, or in water, or even under water if the water is deep. But some beacons can be on top of buildings or floating in the air.

  • Drone Base Stations should always be positioned on the ground -- not on walls or buildings or other elevated structures. Drones may not attack enemies if their base stations are placed above ground.

  • Drones do not actually "fly" and instead hover in the air a little above ground level as they move around, just like an EyeBot, with no significant change in altitude. So be sure to provide easy ways out of walled areas for the Drones to use as they go outward to attack enemies - because they can't fly over walls and barriers. Or simply position them to be just outside settlement walls and other fortifications. For actual up-in-the-air flying, try my miniature vertibird that also defends settlements: Whirligig Sentry.

Known Conflicts:

If you are not able to find the DEFENSE>TURRETS section of the Workshop menu, then you installed a mod that alters the basic construction categories of the game.  In which case you may not be able to build the Radar Stations or Drones, and hence will not be able to use this mod -- if you are lucky, the conflicting mod may have simply rearranged items, with these new units now residing elsewhere in some other category or subcategory instead of where they were intended to be.

To Uninstall:

Uninstall with the mod manager that was used for the original install, or delete the .ESP and .BA2 files.


This mod may not be reused in part or whole for any purpose other than its original intent. It may not be uploaded to any other web site.

Get in touch with me if you wish to discuss translation into a non-English language; prior approval is mandatory.

Change Log:

See the Change Log to review what is included in each update.


Bethesda Softworks - for the original Models and Textures [I merely provided the ingenuity and scripting to bring this mod "to life"]

My Other Mods:

Workshop Menu Fixer can be found Here.

Shield Bubble can be found Here.

Qwirky can be found Here.

Sparky can be found Here.

Silver Streak can be found Here.

Silver Streak UFO can be found Here.

Whirly can be found Here.

Whirligig Sentry can be found Here.

Settlement Medic Bot: "Mister Medic" can be found Here.

Settlement Police Bot: "Mister Law" can be found Here.

Settlement Tidy Bot: "Mister Tidy" can be found Here.

Settlement Salvage Bot: "Mister Salvage" can be found Here.

Settlement Repair Bot: "Mister Mechanic" can be found Here.

Settlement Gardener Bot: "Mister Gardener" can be found Here.

Settlement Delivery Bots: "Mister Caravan / Mister Express / Mister Postman" can be found Here.

Carry-Your-Stuff Robots can be found Here.

Alien Disruptor can be found Here.

Alien Blaster Long-Barrel Fix can be found Here.

In Memoriam:

In memory of my Father (may he Rest In Peace) who was a model airplane maker (gliders & gas powered) and an RC enthusiast.