GPS/GNSS repeaters, also known as GPS signal amplifiers or re-radiators, are devices used to extend the range of GPS signals indoors or in areas where the natural GPS signal is weak or obstructed.

Here's how they typically work.

Receiving the GPS Signal

The repeater consists of an outdoor antenna that receives the GPS signals from satellites orbiting the Earth. This antenna is usually mounted on the roof or outside of a building where it has a clear view of the sky.The The GEMS Survey antenna S440 is a high-precision measurement antenna that supports full-band GNSS signals.

Amplification

Once the GPS signals are received, they are amplified by the repeater. This amplification process strengthens the signals, allowing them to travel further without significant degradation. The GEMS series of amplifiers can meet a variety of RF amplification needs, including step adjustable, digital display, programmable adjustable, gain range includes 30db, 60db.

Transmission

The amplified signals are then re-radiated indoors through an indoor antenna, such as GEMS GPS passive antenna GRA10 is a re-radiated antenna. This indoor antenna is strategically placed within the building to provide coverage to the desired area.The re-radiation distance of each antenna can reach up to 25 metres, and can be greater with the addition of an amplifier at the end.

Indoor Coverage

The re-radiated GPS signals provide coverage indoors, allowing GPS-enabled devices such as smartphones, GPS receivers, or other navigation systems to receive accurate positioning information even when they are inside buildings or structures where the natural GPS signal might be weak or non-existent. The GEMS Indoor GPS coverage solutions is able to provide complete solutions to Fortune 500 users around the world for applications such as laboratories, production lines, schools, bus parking, subways, tunnels and more.

Minimizing Interference

It's important for GPS repeaters to be carefully designed and installed to minimize interference with the original GPS signals. Interference can degrade the quality of the GPS signals and reduce the accuracy of positioning information. GEMS has accumulated a lot of technical experience on how to reduce the interference of signals generated by indoor GNSS sources to outdoor antenna signals, as well as how to reduce the impact of GNSS signals emitted by transponders indoors to the outside world through its engineering cases in the past two decades, and there are also numerous references to implementation cases.

Overall, GPS repeaters work by capturing, amplifying, and retransmitting GPS signals to extend their coverage indoors or in areas where the natural GPS signal is weak, helping users maintain reliable GPS-based navigation and positioning. GEMS GPS REPEATER KIT will help you .