Expanding the RF Range:
The HDwireless GPS antenna tracker has been designed for the optimization of radio links where the corresponding broadcasting unit is in motion during transmission for example on motorcycles, in cars, helicopters, airplanes or on ships. If the radio transmission also takes place over a large area, or in a densely built-up urban area, using antennas with directed radio waves, the tracking system can achieve exceptional results with regard to the maximum transmission range.
How it Works:
At the RF receiving location, the GPS antenna tracker features a dual diversity antenna system on two motor-controlled axes. The mobile radio transmitter is also equipped with a GPS receiver and continually transmits its GPS coordinates to the receiving station. There, the data is fed into a computer and used to calculate the stepper motor positions of the tracker. The weatherproof electronic tracker is controlled remotely via a network and also offers the option of mounting the lightweight GPS antenna tracker in elevated positions, such as on a mast. During operation, the GPS antenna tracker with its dual-axis control follows the transmitter against the horizon from its fixed point via rotation and angulation, thus ensuring stable, reliable radio transmission.
Fields of Application:
With regard to RF project planning, the tracker can be used in a wide range of applications. Numerous projects that were previously only feasible using a helicopter downlink can now be realized via this ground-based system. This does away with complex, costly project components, such as the organization, approval and carrying out of a flight, flight costs, and radio transmission and receiving systems in a downlink helicopter. This does not mean that air-based systems will not be used in the future. For transmissions from very large areas, the scope for radio transmission can now be further expanded with the aid of a GPS antenna tracker. This is the case for sports events involving very long courses, such as cycling or extreme running events of more than 60 km. In a direct line of sight and with precise spatial positioning, the tracker provides outstanding reception of signals from relay helicopters or relay planes over very long courses.
In early 2017, HDwireless developed a prototype for initial project use. In-house construction, mechanics, electronics and programming resulted in an exceptional product. The system was first used at the “Wings for Life” world run in Olten, Switzerland (in combination with a relay plane), and then in Dortmund as part of the HDwireless “Citynetz” to enable the Borussia Dortmund soccer team to broadcast from the moving parade vehicle. Since summer 2017, HDwireless GPS antenna trackers have been a fixed component of many wireless image transmission projects and have enjoyed great acclaim thanks to their high performance. As a result of the in-house manufacturing and software development, the system is continually updated and can also be adapted to customers’ requirements.
Reference: Projekt Corso Truck Borussia Dortmund