Odense, Denmark, 3^rd March 2022 – QuadSAT has performed an antenna validation campaign as part of its ongoing work with LEO satellite operator, OneWeb. QuadSAT performed in-situ verification of 10 antennas at the KSAT Svalbard Ground Station, the world´s largest and northernmost station ideally located at 78´North, in Norway, as part of OneWeb’s ground segment rollout.

The tests focused on the measurements of antenna radiation diagrams, and the verification of the North offset in antenna pointing utilizing the drone as the source. QuadSAT executed several measurements, including azimuth, elevation, and raster cuts to provide accurate data for processing. Data were aggregated through QuadSAT’s own software to deliver accurate results.

QuadSAT is a key disruptor within interference management as its drone-based system provides users with flexible and accurate antenna testing and calibration. A broad range of testing missions can be undertaken, depending on user requirements, and antennas can be tested regardless of location.

OneWeb is a global communications network powered by a constellation of 650 LEO satellites. OneWeb enables high-speed, low latency connectivity for governments, businesses, and communities globally. Its satellites, network of gateways, and range of User Terminals provide fast, high bandwidth, low latency communication services.

Joakim Espeland, CEO of QuadSAT, commented: “RF management is crucial when maintaining complex ground segment networks and OneWeb is keen to ensure that it delivers the best service possible to its customers. Our product enables in-depth testing and validation of antennas to take place in-situ, providing OneWeb with accurate data for its antennas within their own environment. This intensive validation campaign endorses the capabilities of OneWeb’s sophisticated ground segment.’

Daniel Costenbader, Ground Systems Engineer of OneWeb, added: “As the rollout of our ground segment progresses, we are utilising innovative methods to ensure that our networks are robust and accurate. By validating our antennas in-situ, we can review and verify the technology in its own environment. The product and expertise provided by QuadSAT has provided us with sophisticated and detailed results from the validation campaign.”

QuadSAT improves accessibility to high-quality testing solutions for the ground segment. The system ensures repeatability, control over the drone during measurements, ease of operation and data delivery in a uniform format. This in-depth testing provides quality assurance and improves reliability throughout the satcom industry, allowing the industry to deliver the networks required for the connectivity of the future.

Media Contact:

Helen Weedon

Radical Moves

helen@radicalmoves.co.uk

+44 7733 231922

About QuadSAT

QuadSAT is developing a brand new system for test and verification of radio frequency equipment. The technology is fully automated, flexible and location independent capable of scaling and transforming how antennas are tested. The QuadSAT team consist of experts in robotics and radio frequency resulting in a solution that meets the specifications for testing satellite antennas. The systems consist of state-of-the-art drone technology integrated with a custom RF payload as well as automation and measurement software. QuadSAT is backed by Space Tech-focused Seraphim Capital and Danish state Vaekstfonden Venture Capital firms. More information about QuadSAT is available at www.quadsat.com

By Joakim Espeland, CEO QuadSAT

The satellite industry is evolving at an unprecedented pace and so is the ground segment. In 2017, there were just 338 smallsat launches worldwide, and in 2020 the number increased to more than 1200. The increase of Low Earth Orbit (LEO) and Medium Earth Orbit (MEO) launches will inevitably have an impact on the ground segment, forcing change in order to keep up the pace of development.

A great deal of the ground segment infrastructure for LEO is still relatively undecided – indeed, manufacturers are trying to predetermine the needs of a changing industry and put the infrastructure into place ready for a new era of satcomms.

Let’s consider three elements that will be vital to move the ground segment forward.

Adaptation

The ground segment needs to become as agile as it can in order to innovate and adapt to satellite changes. Changes in the sky must be reflected in the operations on the ground, otherwise, the ground segment will not keep up. Innovation in the industry is crucial, and it seems likely that programmable Flat Panel Antennas (FPA s) will be utilised, due to LEO and MEO satellites moving across the sky in comparison to a relatively static GEO satellite. Multiple antennas will need to be employed to ensure consistent coverage, but many FPAs fall short of the exacting standards required to ensure consistent, high-quality connection. 

Testing

In order to remain competitive, and to ensure that satellite is recognised as a solution for next-generation resources, we need to guarantee that services remain error-free. The greatest cause of error in satellites is equipment failure, so it is imperative that new equipment receives rigorous testing before it is put on the network. Testing however can be time-consuming, which is not always ideal when ground equipment is being adapted quickly to meet demand. It is also essential for testing standards to become as agile as the industry itself, as older testing methods may not be suitable for newer technology, as initial antenna labs nor test ranges were not designed for use with LEO satellite. It may not be cost-effective to use traditional testing regimes for next-generation satellites.

Type Approvals

In addition to testing, Type Approvals are a valid way to let operators and users know that they can be confident in their equipment and that they perform well in industry testing. It seems logical that these Type Approvals will need to mirror the testing standards and adapt or extend in order to meet emerging technology, in particular with relation to FPAs.

Addressing the Challenges in the Ground Segment

It seems clear that the satellite industry is facing a challenging time. As well as the considerations above, satellite operators also need to have answers to the questions of RF signal and bandwidth, how redundancy will be managed, and how many satellites will need to be tracked concurrently. There is the additional threat of emerging competition from different communications methods, something that has increased over the past 18 months. But we need not be unduly concerned – satellite has proven itself to be a reliable solution and, if operators are willing to pivot and adapt to address these obstacles, it has great potential to enable a great many next-gen services.