Long Range Bluetooth Module: How the MultiNav Pro+ Achieves 50KM Without a Tower

The Long Range Bluetooth Module That Changes Everything for Builders

For years, Bluetooth has carried a reputation as a short-range protocol — useful for headphones, keyboards, and the occasional fitness tracker, but fundamentally limited when it comes to serious wireless development. Engineers who needed real range had two options: spend five figures on military-grade hardware, or accept the 80–100 meter ceiling of commodity BLE modules and engineer around it.

The MultiNav Pro+ BLE Module from RFOXiA shatters that ceiling entirely.

This is a long range Bluetooth module that achieves over 5KM ground-to-ground range when paired with a smartphone, extends to 15–20KM in man-to-drone configurations, and reaches a verified 50KM when both modules are airborne and free from ground-reflection interference. It supports 2Mbps data throughput, is FCC certified, and ships as a pair for $59.

There is no comparable product in this price bracket. This is not a claim made lightly — it reflects a genuine gap in the hardware market that RFOXiA was built specifically to fill.

Why Standard Bluetooth Modules Fail at Range

To appreciate what the MultiNav Pro+ actually achieves, it helps to understand why commodity BLE modules are limited in the first place.

Most BLE modules on the market — from Nordic, Silicon Labs, or generic Chinese manufacturers — are optimized for low power consumption in short-range personal area network applications. Their RF front-ends are minimal, their receiver sensitivity is adequate for bedroom-scale deployments, and their antenna designs prioritize compactness over gain. These are reasonable trade-offs when you're building a smartwatch or a wireless speaker.

But when a drone builder, field researcher, or IoT engineer needs to close a wireless link over several kilometers, those trade-offs become hard walls. You can't simply crank up the transmit power on a standard BLE module and expect range to follow — regulatory limits, thermal constraints, and receiver sensitivity all impose real boundaries.

The MultiNav Pro+ approaches this problem differently. It incorporates an optimized RF front-end with external amplifiers, a high-gain chip antenna, and advanced receiver sensitivity engineering. The result is a module that operates within the BLE protocol — compatible with smartphones, development boards, and the full BLE ecosystem — while achieving range figures that no commodity module can match.

Key Specifications: What the MultiNav Pro+ Actually Delivers

Range Performance by Configuration

Range is not a single number — it depends heavily on deployment geometry. The MultiNav Pro+ performs as follows across three real-world configurations:

Ground-to-ground (phone + phone): Over 5KM. Both modules paired with smartphones at ground level. This configuration is affected by terrain and ground reflections but still dramatically outperforms any commodity BLE solution.
Man-to-drone (phone + airborne module): 15–20KM. One module paired with an operator's smartphone, one mounted on a drone or aerial platform. Elevated deployment eliminates most ground-level interference and dramatically extends the usable link.
Drone-to-drone (both modules airborne): 50KM. When ground reflections are eliminated entirely, the link operates at its theoretical maximum. This configuration enables autonomous drone swarms, relay networks, and long-distance aerial data transfer at a price point previously impossible.

These ranges are achieved without internet connectivity, without cellular towers, and without any infrastructure beyond the two modules themselves.

Data Rate: 2Mbps

Range means nothing if the data link is too slow to be useful. The MultiNav Pro+ supports up to 2Mbps data transmission — fast enough for real-time telemetry, live sensor streaming, drone control with sub-second response, and even voice communication between nodes. Whether you are commanding an autonomous robot, streaming GPS coordinates back to a base station, or relaying environmental sensor data across a field deployment, the bandwidth is there.

Processing Core: STM32WB07CCV6

At the heart of the MultiNav Pro+ is the STM32WB07CCV6 — a dual-core wireless SoC from STMicroelectronics that manages both the BLE stack and the user application simultaneously. This architecture means the module is not simply a radio peripheral that needs an external microcontroller to do anything useful. It can run your application logic, manage sensor data, execute control loops, and handle the wireless link — all in one compact package.

For developers, this translates to simpler system design, fewer components, and faster time to deployment.

Physical Design: Compact Without Compromise

The MultiNav Pro+ measures 57mm × 47mm with a fixing frame size of 54mm × 34mm and corner mounting holes for secure mechanical integration. The antenna extends to 140mm, optimized for the gain needed to achieve these range figures without requiring external antenna connections.

Despite the performance it delivers, this module is designed to fit into real-world hardware — drones with limited frame space, enclosures for field equipment, and compact robotics platforms. The onboard fixing frame holes make mechanical mounting straightforward, whether you are integrating into a custom PCB stack or mounting directly to a frame.

An integrated RTC crystal provides precise timing for applications that require synchronization — navigation systems, multi-node sensor networks, and time-stamped data logging all benefit from accurate on-board timekeeping.

The RFOXiA Ecosystem: More Than a Module

The MultiNav Pro+ BLE Module is the wireless core of a complete hardware ecosystem. It is designed to connect directly with three companion modules — GNSS, Sensors, and Motor/Battery Management — through four dedicated interfaces.

This means a developer can build a complete autonomous system — GPS-guided, environment-sensing, motor-controlled, and wirelessly linked over 50KM — using a stack of RFOXiA modules without needing to design custom interface boards or write complex integration firmware from scratch.

The four interfaces on the BLE module cover:

GNSS — direct connection to the MultiNav Pro+ GNSS module for 18Hz, 1.5m accuracy positioning
Sensors — connection to the 7-sensor environmental module (temperature, humidity, pressure, air quality, accelerometer, gyroscope, magnetometer)
Motors & Battery Management — integrated motor control and power management for robotic and drone applications
Programming — SWD interface for firmware development, debugging, and custom application deployment

For builders who want the complete system from day one, the RFOXiA Long Range Bluetooth Module is available as part of the Developer Bundle alongside all companion modules.

RFOXiA Connect App: Control From Your Phone

The MultiNav Pro+ pairs directly with the RFOXiA Connect app on iOS and Android. No gateway, no cloud dependency, no internet required — your phone connects to the module over Bluetooth and becomes a fully functional control and monitoring station with the following capabilities:

Live map view — real-time GPS tracking of your drone, robot, or remote asset
Live sensor data display — environmental readings from attached sensor modules streamed in real time
PS5-style controller interface — intuitive directional control for drones and robots
Automation center — programmable automation sequences for autonomous operation

With a man-to-drone range of up to 20KM, your smartphone becomes a long-range ground control station — no dedicated radio hardware needed beyond the module itself.

BLE Chat: Internet-Free Communication at Scale

One of the most distinctive features of the MultiNav Pro+ is BLE Chat — a mesh communication capability that allows direct text, data, and voice communication between multiple MultiNav Pro+ users without any internet connection.

The applications for this feature extend well beyond drone control:

Disaster response teams operating in areas where cellular infrastructure has failed
Remote expedition groups in locations with no coverage
Search and rescue operations requiring coordinated communication across large terrain
Industrial sites where RF interference or policy prevents cellular use
Off-grid research deployments where data needs to be shared between field stations

With a ground-to-ground range of 5KM and the ability to chain multiple nodes into a mesh, BLE Chat creates a private, free, infrastructure-independent communication network wherever you deploy it.

Open Source, Fully Programmable

RFOXiA is committed to open development. The MultiNav Pro+ firmware is fully open source and available on GitHub: github.com/RFOXiA/MultiNav-Pro-Long-Range-BLE-Module-Firmware-STM32WB07

Programming is done via SWD using the integrated interface on the Power/Program Kit, which includes a built-in STLink programmer. Developers have complete access to modify, extend, and deploy custom firmware for any application.

For developers who want to move faster, RFOXiA Club includes an AI Firmware Builder — describe your application in plain language, and the AI generates production-ready firmware code ready to flash directly to your module. What used to take weeks of embedded systems work can now be prototyped in hours.

This combination — open hardware, open firmware, and AI-assisted development — makes the MultiNav Pro+ one of the most developer-accessible long range Bluetooth modules ever produced.

FCC Certified and Ready to Deploy

All four modules in the RFOXiA lineup — including the MultiNav Pro+ BLE Module — carry FCC certification. This is not a minor detail.

FCC certification means the module can be legally deployed in the United States, is cleared for distribution through major electronics distributors, and has passed independent electromagnetic compatibility testing. For professional developers, this eliminates one of the most time-consuming and expensive steps in bringing a wireless product to market — you can integrate a certified module into your product and leverage that certification for your own regulatory filing.

For end users, it means confidence that the hardware meets established standards and performs as specified — not as a prototype, but as a production-ready component.

Who Is the MultiNav Pro+ Built For?

The MultiNav Pro+ BLE Module is the right tool for builders working at the intersection of wireless connectivity and real-world deployment:

Drone builders and FPV pilots who need a reliable, long-range control and telemetry link that works without infrastructure and pairs directly with a smartphone app.

Robotics engineers building ground vehicles, autonomous systems, or remote-operated platforms that need robust wireless links across distances commodity modules cannot cover.

IoT developers deploying sensor networks in agricultural, industrial, or environmental monitoring applications where cellular coverage is spotty and subscription costs are prohibitive.

Field researchers who need reliable wireless communication and data transfer in remote locations without infrastructure dependencies.

Hardware developers building new products who need a certified, programmable long-range wireless core with full documentation and open-source firmware.

If your application demands wireless range beyond what commodity Bluetooth can deliver — and your budget does not extend to military-grade systems — the MultiNav Pro+ occupies exactly the space you need.

Pricing and Availability

The MultiNav Pro+ BLE Module is available as a pair — two fully functional modules for $59. This includes everything needed to establish a bidirectional long-range wireless link immediately.

For builders who want the complete ecosystem, the Developer Bundle combines the BLE Module, GNSS Module, Sensors Module, and Power/Program Kit for $199. New RFOXiA Club members receive a $10 welcome credit on signup, with additional credits available through platform engagement — effectively reducing your first hardware purchase significantly.

Inventory is in stock and FCC certified. This is not a pre-order — it ships.

The Market Gap RFOXiA Fills

The hardware market for long-range wireless has historically been binary: cheap and short-range, or expensive and inaccessible. Commodity BLE modules top out around 80–100 meters. Military and industrial long-range systems start at $5,000 and require specialized expertise to deploy.

The MultiNav Pro+ sits in a market position that previously did not exist — professional-grade long-range wireless performance at maker-accessible pricing. No direct competitor offers equivalent range at this price point. No comparable product combines BLE protocol compatibility, 50KM airborne range, 2Mbps throughput, FCC certification, smartphone app integration, open-source firmware, and ecosystem expandability in a single module pair at $59.

For developers who have been engineering workarounds for the range limitations of standard Bluetooth — or paying dramatically more for industrial hardware — the MultiNav Pro+ is the answer that was not available before.

Getting Started

The fastest path to your first long-range wireless link:

Order the MultiNav Pro+ BLE Module — two modules, $59, ships now
Join RFOXiA Club — free membership, $10 welcome credit, access to AI Firmware Builder and full documentation
Download RFOXiA Connect — iOS and Android, pairs directly with your module
Explore the open-source firmware — full GitHub repository with example applications

If you are ready to push your wireless projects beyond the limits of standard Bluetooth, explore the RFOXiA Long Range Bluetooth Module and see what becomes possible when range is no longer a constraint.

The technology that was previously accessible only to military programs and well-funded research institutions is now available for $59 and ships tomorrow. Build accordingly.

RFOXiA is a Delaware-based hardware technology company building professional-grade wireless development tools for engineers, makers, and innovators. All products are FCC certified and available through rfoxia.com.

Written by: Moamen Mohamed LinkedIn

Long Range Bluetooth Module: 50KM Wireless for Drones & IoT