Who we are and what we do?

GNSS (Global Navigation Satellite System) is the umbrella term for all satellite constellations that provide global positioning.

GPS (Global Positioning System) is one specific system, owned and operated by the United States. Other constellations covered by GNSS are Galileo (EU), BeiDou (China), GLONASS (Russia), QZSS (Japan), NavIC (India). Modern receivers typically receive many constellations to improve navigation accuracy.

The signals sent by satellites are incredibly weak by the time they reach Earth— the GNSS signals travel 24,000 kilometers from satellites.

GNSS signals are easily blocked or “absorbed” by dense materials like concrete, brick, and metal roofing. Blocking causes already weak signals to drop below detectable power. Therefore, GNSS does not work well or at all indoors.

GPS or GNSS can be brought indoors by using a GNSS repeater or active amplifiers and splitters.

• GNSS repeaters transmit the signal wirelessly through the air to any device with a GNSS antenna in the room like laptops, smartphones, and IoT devices.
• Amplifiers and splitters are suitable for wired devices that have a physical GNSS port. Typical wired devices include measurement tools, timing equipment, and base stations.

A GNSS Repeater (or re-radiator) is the primary solution for bringing “live” satellite signals inside. Basic setup includes:

1. Outdoor Antenna: A high-gain antenna is placed on the roof with a clear, 360° view of the sky.
2. Coaxial Cable: Transmits the raw satellite data down into the building.
3. Indoor Repeater Unit: Amplifies the signal and “re-radiates” it through a small antenna into the indoor space.

No. This is the most common misunderstanding.

A GNSS repeater does not provide “area-wide” navigation like GNSS outdoors. GNSS repeater repeats the signal that is “seen” by the outdoor antenna. If you walk from one side of a warehouse to the other, your blue dot on the map will stay perfectly still.

Does a GNSS repeater show my “true” indoor position?
No. It shows the position of the outdoor antenna.

GNSS repeaters can be used indoors to provide live GNSS signals to keep devices GNSS positioning on all the time. Use cases include:

• Fire Stations/Ambulance Bays: Keeps the vehicle’s GPS “locked” so it’s ready the moment they drive out.
• Aircraft Hangars: Allows technicians to test onboard navigation systems without towing the plane outside.
• Product Testing Labs: Testing smartwatches or vehicle trackers on an assembly line.
• Data Centers: Providing a “Time Sync” signal for network servers.

Yes. You can distribute the signal from a single outdoor GNSS antenna to several indoor repeater units using a splitter.

This approach is common in large facilities such as hangars, tunnels, or multi-room buildings. By installing multiple repeater units, you can extend coverage to different areas and even achieve full building coverage.

GNSS repeaters bring live satellite signals inside buildings, tunnels, or covered areas where GNSS reception is normally blocked. Key benefits include:

• Continuous GNSS availability: Devices maintain satellite lock indoors, avoiding long reacquisition times when moving outside.
• Operational readiness: Vehicles, aircraft, and equipment can start with valid GNSS data immediately.
• Improved testing environments: Labs and production lines can verify GNSS functionality without going outdoors.
• Accurate timing continuity: Systems relying on GNSS time (e.g., telecom, critical infrastructure) stay synchronized even under cover.
• Cost and efficiency: Eliminates the need for expensive outdoor testing or complex distributed antenna systems for basic coverage.

Yes, if you follow up local regulation rules. Regulation is country dependent.

Typically, you need a radio license from your national communications regulator. For example, in UK the regulation authority is Ofcom, in Finland Traficom, and in Germany Bundesnetzagentur.

Yes. But it is highly recommended to use skilled installer. There are several considerations that must be taken into account to obtain best performance.