Six Satellites Opened a Data Link for High-Power Bluetooth Devices

A Bluetooth radio can now send small packets of data directly to a commercial satellite network without adding a cellular or dedicated satellite modem. Hubble Network opened the service to general availability on September 23, turning a technology previously shown in demonstrations and pilot programmes into a service developers can integrate.

The company operates six satellites in low Earth orbit. Its device software changes how a Bluetooth Low Energy radio broadcasts a compact message, allowing a satellite hundreds of kilometres above Earth to detect it. Hubble says the link is intended for location and sensor readings from cargo, equipment and other low-power connected devices, rather than voice calls or broadband internet.

What changed

General availability means developers can register devices, add Hubble’s software development kit and receive packet data through a cloud interface. The company’s developer documentation describes a dual network: terrestrial gateways handle messages where ground coverage exists, while satellites extend reception across oceans, deserts and remote worksites.

Hubble says more than 500,000 devices already use its wider network, which also includes over 100 million terrestrial scanning gateways. That figure should not be read as 500,000 devices already communicating through space. The company has not disclosed satellite-only device counts, delivery rates, latency or independent reliability measurements.

The milestone is not that Bluetooth has replaced satellite broadband. It is that a familiar, inexpensive radio can now send tiny operational messages beyond cellular coverage.

Why the link is unusual

Bluetooth is normally associated with nearby accessories. Reaching orbit requires a carefully designed transmission, a clear enough radio path and sufficient power. Hubble says current satellite connectivity requires a Bluetooth transmitter capable of +20 dBm. Devices also need its firmware and cryptographic provisioning, which means headphones, phones and tags do not join automatically merely because they contain Bluetooth.

The company says future satellites planned for 2027 should hear signals at 4 dBm and add location capability. It aims to expand the constellation to 60 satellites by 2030, funded partly by a newly announced $200 million investment round. Those are development targets, not capabilities of the present six-satellite system.

Even with those limits, the opening matters because hardware cost has kept satellite tracking concentrated on expensive assets. If ordinary Bluetooth chips can reliably report small messages from remote areas, companies could track more individual tools, packages and sensors without redesigning each product around a specialist modem.