In ARC Raiders, the Radio Relay is one of those items that looks important at first but quickly becomes clear: it’s mainly a resource item, not a gadget you actively use in combat. Most players pick it up during mid-game loot runs and either stash it or break it down for materials. It also often shows up while farming industrial zones alongside other loot tied to arc raiders blueprints progression and crafting routes, especially in higher-tier maps where Exodus materials spawn more frequently.
What the Radio Relay Actually Does
The Radio Relay has no active field function. You can’t deploy it, trigger it, or use it for scanning or communication. Instead, its value comes from recycling.
When you break it down in your hideout, it typically converts into:
2× Sensors 2× Speaker Components
These two materials are important because they feed directly into mid-to-late game crafting. In practice, they’re used for upgrading utility gear, advanced augments, and higher-tier attachments. This is why veteran players don’t ignore Radio Relays even if they look like junk at first glance.
Why Players Still Care About It
Even though it’s labeled as “Rare,” the Radio Relay is basically a crafting shortcut. If you run efficient extraction routes, you can build up a steady supply of Sensors without relying purely on random crafting drops.
A simple example:
Average Stella Montis loot run: 5–10 minutes Drop chance: inconsistent but commonly found in industrial clusters 10 successful runs: roughly 50–100 minutes of farming Expected output: enough recycled parts to support multiple mid-tier upgrades
That means one focused session can cover a large portion of your crafting needs for a full upgrade cycle, especially if you’re rotating between multiple loot hotspots instead of camping one area.
Farming Location and Efficiency
Most players agree that Stella Montis is the most reliable map for Radio Relay farming. It tends to spawn in industrial interiors, relay stations, and tech-heavy buildings rather than open terrain. The key is not just knowing the map, but running tight routes that avoid unnecessary fights.
For example, a common route loop includes:
Entering through a low-traffic edge zone Clearing 2–3 industrial structures Extracting within 8 minutes before ARC patrol density ramps up
This keeps risk low while maximizing material yield per minute.
Practical Use Case in Progression
In a real progression scenario, players often hit a bottleneck around early Mark II gear. At this stage, Sensors become the limiting factor. This is where Radio Relays matter most. Instead of waiting for random drops, you convert a few Relays and instantly continue upgrading.
In the middle of most upgrade paths, resource efficiency matters more than raw combat skill. That’s where optimization tools like U4N become relevant for players who want to streamline farming loops and reduce wasted runs.
The Radio Relay isn’t flashy, but it’s efficient. Think of it as compressed crafting value. You don’t use it directly—you convert it into progress. Players who consistently pick it up and recycle it tend to reach mid-tier upgrades faster and with fewer farming bottlenecks than those who ignore it.
If your goal is steady progression rather than lucky drops, Radio Relays are worth prioritizing every time you see them.
