FCC Certified Bluetooth Module That Reaches 50KM — Meet MultiNav Pro+
RFOXiA Long Range Bluetooth Module
The FCC Certified Bluetooth Module Redefining What Wireless Can Do
Every hardware engineer, drone builder, and IoT developer has hit the same wall. You find a Bluetooth module that looks promising on paper, integrate it into your design, head into the field — and watch the connection drop at 80 meters. The specs said 100m. Reality delivered something far less. You adapt, you compromise, and your project becomes smaller than it was supposed to be.
That wall no longer exists.
The MultiNav Pro+ BLE Module is a fully FCC certified Bluetooth module engineered from the ground up to demolish the range limitations that have constrained wireless development for years. With ground-to-ground connectivity reaching 5KM when paired with a smartphone and module-to-module communication extending beyond 50KM in drone-to-drone deployments, this is not a commodity module with inflated marketing claims. It is a professionally designed RF system that has passed FCC certification, ships ready to deploy, and costs $59 for two units.
There is nothing else on the market at this price point that does what the MultiNav Pro+ does. Not even close.
Why FCC Certification Actually Matters for Your Project
Before going deep into what makes the MultiNav Pro+ exceptional, it is worth pausing on a credential that gets mentioned casually but carries enormous practical weight: FCC certification.
FCC certification is not a checkbox. It is a rigorous testing and authorization process conducted by the Federal Communications Commission that confirms a wireless device operates within legally defined radio frequency parameters, does not create harmful interference, and meets emissions standards that protect the broader radio spectrum ecosystem.
For developers, FCC certification on a module means several critical things:
It is legal to deploy in the United States. Uncertified wireless devices operating in FCC-regulated frequency bands can result in fines, forced shutdowns, and product recalls. If you are building a commercial product, deploying a fleet of IoT nodes, or selling hardware to customers, you need certified components.
It unlocks distribution. Major electronics distributors — DigiKey, Mouser, Newark, SparkFun — require FCC certification as a baseline qualification for listing products. The MultiNav Pro+ meets this bar across all RFOXiA modules.
It validates the RF design. Passing FCC emissions testing is evidence that the radio frequency engineering is sound. A module that clears FCC certification has been measured, tested, and confirmed to perform within spec. That is meaningful signal integrity assurance that no uncertified module can offer.
The MultiNav Pro+ is not just an FCC certified Bluetooth module. Every module in the RFOXiA product line carries FCC certification — the GNSS Module, Sensors Module, and Power/Program Kit all passed. That consistency across a full product family is rare in the maker hardware space and reflects genuine engineering discipline.
50KM Range: The Engineering Behind the Number
When you see a range claim of 50KM on a Bluetooth module, your instinct is probably skepticism. That instinct is reasonable — the Bluetooth hardware market is full of exaggerated specifications that evaporate in real-world conditions. So let us be specific about how the MultiNav Pro+ achieves its range numbers, because the engineering is real and the physics is straightforward.
Ground-to-ground (module to smartphone): 5KM When one MultiNav Pro+ module is paired with a user's smartphone and the second module is paired with another user's smartphone — both parties standing on the ground — the system maintains a reliable link at over 5 kilometers. Ground reflections and obstacles reduce effective range, but 5KM ground-to-ground is still roughly 50 times what any commodity BLE module achieves.
Man-to-drone (module on phone, module on drone): 15–20KM When one module remains with a ground-based operator and the second module is mounted on a drone at altitude, ground reflections are dramatically reduced on one side of the link. The elevation advantage of the drone extends the reliable communication range to 15–20 kilometers.
Drone-to-drone: 50KM With both modules airborne, ground reflections are eliminated entirely. The RF link operates in near-ideal conditions, and the optimized RF front end of the MultiNav Pro+ can sustain reliable communication at over 50 kilometers.
The range performance comes from three hardware decisions: an optimized RF front-end design, external power amplifiers, and advanced receiver sensitivity engineering. This is not software magic or marketing manipulation. It is the result of careful PCB layout, proper impedance matching, and deliberate component selection by an RF engineer who built this module to actually work.
2Mbps Data Rate: Speed That Matches the Range
Long range is meaningless if the data pipe is too narrow to carry useful information. The MultiNav Pro+ supports a 2 Mbps data rate — the maximum standard BLE data rate — which means you are not trading speed for distance.
At 2Mbps, the module handles:
- Real-time drone telemetry with sensor fusion data
- Live GPS coordinates streaming at high update rates
- Control commands for robotic actuators with minimal latency
- Environmental sensor data from multiple sensors simultaneously
- BLE Chat messages and data payloads between field nodes
For drone control applications especially, latency matters as much as range. A control link that introduces 500ms of lag is dangerous at any distance. The MultiNav Pro+ is designed to maintain low-latency, high-throughput communication even at the edge of its range envelope.
The Processing Core: STM32WB07CCV6
At the heart of the MultiNav Pro+ is the STM32WB07CCV6 from STMicroelectronics — a dual-core wireless microcontroller that manages both the BLE stack and user application code simultaneously without compromising either.
This matters architecturally. Many low-cost BLE modules force developers to share processing resources between the radio stack and application logic, creating timing conflicts and performance bottlenecks. The STM32WB07CCV6 architecture keeps these concerns separated, delivering:
- Consistent BLE stack performance regardless of application complexity
- Sufficient compute for onboard signal processing, sensor fusion, and data formatting
- Hardware security features for applications requiring encrypted communication
- Low power modes for battery-optimized deployments
- Full SWD programmability for custom firmware development
The firmware is fully open source and available on GitHub at github.com/RFOXiA/MultiNav-Pro-Long-Range-BLE-Module-Firmware-STM32WB07. If you want to understand exactly how the module works, modify its behavior, or build entirely custom applications on top of it, everything you need is there.
Ecosystem Integration: Built to Work With Everything
The MultiNav Pro+ BLE Module is not a standalone component. It is the communication backbone of a complete hardware ecosystem designed to work together without custom wiring or interface translation.
The module features four distinct interfaces:
GNSS Interface — Connects directly to the MultiNav Pro+ GNSS Module, which delivers 1.5-meter accuracy at an 18Hz fix rate. For fast-moving platforms like drones, that update rate is essential. The BLE module streams this location data over the air in real time.
Sensors Interface — Connects to the Sensors Module, which packs temperature, humidity, air pressure, air quality, accelerometer, gyroscope, and magnetometer into one board. Seven sensors, one connection, live data across the link.
Motors & Battery Management Interface — Purpose-built for robotics and drone applications. Control ESCs, servos, and monitor battery state over the same long-range BLE link.
Programming Interface — Integrated SWD programming via the Power/Program Kit. Flash new firmware, debug live code, update applications in the field without removing the module from your platform.
This modular architecture means you can start with the BLE Module alone and expand incrementally as your project requires — no redesign necessary.
RFOXiA Connect App: Your Command Interface
The RFOXiA Long Range Bluetooth Module pairs with the RFOXiA Connect App, available for both iOS and Android. The app is not a simple Bluetooth scanner or generic dashboard. It is a full-featured control and monitoring environment built specifically for the MultiNav Pro+ ecosystem.
Control Screen — A PS5-style controller interface gives you precise, low-latency control over drones, ground robots, and any actuator-driven system. The familiar layout means minimal learning curve even for new operators.
Live Map — Real-time GPS tracking on a live map view. Watch your drone or robot's position update in real time at the GNSS module's full 18Hz rate. Set waypoints, track paths, review mission history.
Live Sensor Data — All seven sensors from the Sensors Module stream directly to the app display. Monitor environmental conditions, IMU data, and air quality from up to 20 kilometers away.
Automation Center — A unique feature that lets you define conditional automation rules. Set thresholds, triggers, and automated responses directly from the app without modifying firmware.
Critically, the app works completely without an internet connection. No cloud dependency, no latency from server round-trips, no subscription required to use your own hardware. The link is direct, private, and yours.
BLE Chat: Communication Infrastructure Without Infrastructure
Beyond device control and telemetry, the MultiNav Pro+ includes a capability that has profound implications for field operations: BLE Chat.
BLE Chat enables direct, internet-independent communication between any two MultiNav Pro+ users — text, data, voice, and calls — using the BLE modules as communication nodes through the RFOXiA Connect app.
Think about what this means in practice:
- Disaster response teams operating in areas where cellular infrastructure has failed can maintain communication across kilometers without towers or satellites
- Remote expedition teams in areas with no coverage can coordinate via text and voice using equipment already in their kit
- FPV racing operations with multiple pilots and spotters can coordinate on a private, encrypted channel with no subscription fee
- Construction and industrial sites with RF-hostile environments can run a private mesh communication network without IT infrastructure
This is the kind of capability that previously required satellite communicators costing $500+ per device with monthly subscription fees. The MultiNav Pro+ delivers it as a built-in feature of a $59 module pair.
Compact Form Factor Engineered for Real Deployments
The MultiNav Pro+ measures 57mm x 47mm with a fixing frame size of 54mm x 34mm and corner mounting holes at 51mm x 39mm spacing — standard dimensions that fit into drone frames, robotics enclosures, and custom PCB layouts without forcing awkward mechanical compromises.
The 140mm antenna is an integrated high-gain chip antenna design that delivers the RF performance needed for long-range operation without requiring external stub antennas or SMA connectors. You get high-gain antenna performance in a form factor that mounts cleanly in tight spaces.
For drone builders especially, form factor is not an afterthought. Every gram matters. Every millimeter of clearance matters. The MultiNav Pro+ was designed by someone who has mounted hardware on drones, not just designed modules for an abstracted datasheet.
Open Source, Programmable, and Yours
The MultiNav Pro+ firmware is fully open source. The complete source code is on GitHub. You can read it, fork it, modify it, build on top of it, and flash your own builds via the SWD interface.
For developers who want to extend the module's capabilities without writing firmware from scratch, the AI Firmware Builder in RFOXiA Club lets you describe your application in plain language and generates production-ready firmware code. Months of firmware development compressed into hours — without sacrificing control or customization.
For teams with proprietary requirements, the open architecture means you can build completely custom applications on the STM32WB07CCV6 platform while benefiting from the RF design and physical certification that RFOXiA has already done. You do not need to re-certify a module that is already FCC certified.
This is precisely the leverage that makes the RFOXiA Long Range Bluetooth Module compelling not just for individual makers but for commercial product teams. Start with a certified, field-proven RF platform and build your product on top of it.
Integrated RTC: Precision Timing for Time-Critical Applications
The MultiNav Pro+ includes an integrated RTC crystal for precise real-time clock functionality. In isolation, this might seem like a minor feature. In time-critical applications, it is essential.
For multi-node sensor networks, precise timestamping ensures data from different nodes can be meaningfully correlated. For navigation systems, time synchronization is foundational to accurate position calculation. For automated systems with scheduled operations, a reliable RTC enables time-based triggers without network dependency.
The RTC adds zero size or weight penalty to the module — it is integrated into the design. But it expands the category of applications the module can serve significantly.
Who Should Be Using the MultiNav Pro+
The MultiNav Pro+ was built for builders who have outgrown the limitations of commodity modules and need professional performance without a military budget.
FPV pilots and drone builders who want genuine long-range control without dependence on a proprietary radio protocol or a fragile internet bridge. The 15–20KM man-to-drone range is real operational range, not a line-of-sight laboratory measurement.
Robotics engineers building ground-based autonomous systems that need reliable telemetry and control beyond the 100m bubble that commodity BLE allows.
IoT developers deploying remote sensing networks in locations where cellular coverage is unreliable or expensive. The BLE Chat mesh capability means nodes can relay data between each other.
Researchers and academics who need verified, timestamped, GPS-tagged sensor data from mobile platforms at ranges that fieldwork actually demands.
Commercial product developers who need an FCC certified Bluetooth module as the foundation for a product they intend to sell — where certification compliance is not optional.
RFOXiA Club: The Platform Behind the Hardware
Every MultiNav Pro+ purchase connects you to RFOXiA Club — a full developer platform that includes documentation, firmware examples, AI firmware generation, a live developer community, a command and control dashboard, and the data monetization network.
New signups receive $10 in welcome credits toward hardware purchases. The platform is free to join, and it is where the RFOXiA ecosystem lives.
If you are building something wireless and you want hardware that is actually certified, actually performs at spec, and actually comes with an ecosystem behind it — this is the module.
The Market Gap the MultiNav Pro+ Was Built to Fill
Commodity BLE modules from mainstream silicon vendors top out at 80–100 meters in real-world conditions. They cost $5–15, they are generic, and they are fine for proximity applications — unlocking a door, connecting to a wearable, streaming audio to headphones.
Military and professional long-range wireless systems reach 150KM or more. They cost $5,000 to $50,000. They are not accessible to builders, researchers, or commercial hardware teams without significant defense or industrial budgets.
Between those two extremes — between the $15 commodity module that tops out at 100 meters and the $5,000 military system — there was nothing. Until now.
The MultiNav Pro+ sits in that gap deliberately. It is the only FCC certified Bluetooth module on the market that delivers professional-grade long-range wireless performance at a price any serious developer can afford.
Two modules, 50KM range, 2Mbps data rate, complete ecosystem, FCC certified. $59.
Get the MultiNav Pro+ BLE Module at RFOXiA and start building without limits.
Technical Specifications Summary
| Specification | Value |
|---|---|
| Ground-to-Ground Range | 5KM |
| Man-to-Drone Range | 15–20KM |
| Drone-to-Drone Range | 50KM |
| Data Rate | 2Mbps |
| Processing Core | STM32WB07CCV6 |
| Module Dimensions | 57mm x 47mm |
| Antenna Length | 140mm |
| Fixing Frame Hole Spacing | 51mm x 39mm |
| FCC Certification | Yes |
| Open Source Firmware | Yes (GitHub) |
| App Compatibility | iOS and Android |
| Internet Required | No |
| Price (2-unit pack) | $59 |
RFOXiA builds professional-grade hardware for builders who refuse to be limited by what currently exists. The MultiNav Pro+ BLE Module is available now at rfoxia.com.
Written by: Moamen Mohamed LinkedIn