• EDRS-C opens new chapter in broadband Earth observation

    Laser Communications Terminal on board European relay satellite enables significant higher data transfer rates and shorter access times.
  • TESAT delivers game changer for SmallSat market

    Today we can announce that we delivered our first CubeLCT to a non-disclosed, US-American customer. The CubeLCT is a small, ultra-lightweight optical data transmitter, which is capable of transferring data with 100 Megabit per second from low Earth orbit satellites directly to ground. For us, this delivery marks the starting point of a new product family focusing on NewSpace applications for small satellites and CubeSats. The development of the CubeLCT serves the demand for increasing...
  • DLR Components Conference 2019

    The 18 th DLR Components Conference took place on 23 rd and 24 th May in Bonn Königswinter. The 120 participants of the German aerospace supply industry discussed intensively about news and future topics around EEE components. The TESAT Parts Agency and the EEE Centre were represented here with three lectures from Dr. Witzany (EEE Centre), Mr. Rostewitz (EEE Centre) and Dr. Kuechen (Parts Agency).
  • Nanosatellite sees the light

    Laser Communications for a new age in space TESAT, KSAT and GomSpace have partnered up to introduce full optical communications capability for new innovative small satellite missions and space-based services.
  • Tesat on the road to success

    Tesat registers increasing order intake Continuing high level of investment in research and development New CEO, Dr. Marc Steckling, expects 20 % growth in the next few years
  • Parts Agency for ORION's European Service Module

    The European Service Module (ESM) Flight Unit 1, a part of the ORION spacecraft, has successfully been shipped from Germany to the US and is now prepared for its marriage with the NASA crew vehicle to be made ready for the launch at the Kennedy Space Center. Not just being a great success for NASA, ESA and Airbus, but also for the Tesat-Spacecom Parts Agency. As subcontractor of Airbus, TESAT is leading the Coordinated Parts Procurement (CPPA) for the European Service Module, which occupies a...
  • Laser Communications Technology from Tesat setting new records

    As the worlds’ only serial manufacturer of in-orbit certificated and tested laser communication terminals, Tesat is chasing its own records. Now another LCT135 terminal has been produced, tested and qualified in record time and is ready for delivery.
  • German space alliance relies on technology from Tesat-Spacecom

    As prime for the scientific-technical payload and responsible for the military repeater, Tesat-Spacecom is responsible for the design, construction and verification of the core elements of the German space mission “Heinrich Hertz”.
  • Live: Launch of Aeolus

    Aladin’s magic lamp ready for take off: After 16 years of preparation and tough technical difficulties, Aeolus is finally ready to go for its final destination in low earth orbit. Weighing 1.4 tons, Aeolus carries the payload “Aladin”(Atmospheric Laser Doppler Instrument), which is based on the concept of LIDAR (Light detection and ranging), a method related to RADAR, but with laser beams for distance measuring instead of radio waves.
  • VDI-Nachrichten: Shining Light

    Recently an editor of the VDI-Nachrichten paid us a visit for his research on laser communications and EDRS-C, having no fear bringing our experts to their limits and asking difficult and uncomfortable questions. The result is an exciting and extensive article with the headline „Lichtgestalt“ („Shining Light“). The article describes our LCT135, which we developed and produced in cooperation with DLR IKN, and its role within Airbus’ SpaceDataHighway. Many thanks to Iestyn Hartbrich for the...
  • Live: Launch of 4 new Galileo satellites

    The final countdown for Tara, Samuel, Anna and Ellen begins: Only 1 hour and 30 minutes until the new Galileo satellites are launched into orbit onboard an Ariane 5 launcher. In short: the European Galileo program is the counterpart to the US GPS system and is though an independent, global satellite navigation system. Tesat-Spacecom's part for the four new satellites was to deliver the essential TT&C transponders, which are being used to properly determine the position of an object in space...
  • Tesat-Spacecom participates in EU research and innovation programme Hi-FLY

    Tesat takes part in European Union’s research and innovation programme Hi-FLY to take RF data links to the next stage. But let’s first clarify: What is the Hi-FLY project? And why is it so important?
  • Gigabit Connectivity for the International Space Station

    Berlin, 26.04.2018: At today’s press conference Airbus Defence and Space, the Institute for Communication and Navigation of the German Aerospace Center (DLR-IKN) and Tesat-Spacecom published their cooperation with the aim to equip the ISS with a high capacity direct-to-earth Laser Communication Terminal.
  • World's smallest Laser Communication Terminal from Tesat on track - CDR...

    Backnang, 12.04.2018: Tesat's Laser Communication Terminal for CubeSats, CubeL, is on track after recently the Critical Design Review (CDR) was successfully held at the German Aerospace Center (DLR) in Oberpfaffenhofen. This was an important milestone for the development program on the way to its demonstration mission, which is planned to launch later this year.
  • 10,000 laser links between satellites established

    Satellite communication reaches new peak Backnang, 11.04.2018: Tesat-Spacecom established 10,000 connections between satellites using its Laser Communication Terminals (LCT). Tesat's LCTs transmit massive amounts of data at up to 1.8 Gbps over distances of 80,000 km in orbit. In addition, the company develops significantly smaller LCTs for Direct-to-Earth applications.
Hispasat in Test-Kammer

With Hispasat 36W-1, 25 years after DFS-Copernicus a German communications satellite launched once again into geostationary orbit. On board: a payload from Tesat-Spacecom.

The SmallGEO platform has been produced by ESA, OHB and the Spanish satellite operator HISPASAT as part of a project to provide the Iberian Peninsula, the Canary Islands and South America with multi-media services. Tesat's share of this was the communication payload as well as a suitable automatic high-frequency measuring station for the complete integration and test phase.

The payload consists of a transparent Ku-band repeater with 24 channels as well as the Ka-band repeater with three channels. In addition there are two Ku-band antennas covering Europe and America, a controllable DRA antenna (Direct Radiating Antenna) and the Ka-band antenna. An OBP (On Board Processor) completes the payload. Special mention should be made of the MPMs, whose saturation output power can be changed via telecommands from ground and thus be adapted to the conditions.

However, it was a long way to go: in August 2012, the empty SmallGEO module from OHB arrived and all the individual devices for Ka- and Ku-band had to be integrated. The active direct radiating array antenna and the three reflector antennas were later mounted to the platform by OHB. Beginning in mid-2013, the intensive system tests started in Backnang and after solving of some technical challenges, the end-to-end test of the complete payload without the antennas could be completed in autumn 2013. At the end of this phase, it was moved to the large EMI chamber for the final EMC test. After the successful completion in December 2013, the repeater module from Tesat was handed over to OHB in due time.

After the mating of the repeater module with the platform, Satellite First Reference Test at OHB and the vibration test at the IABG in Ottobrunn followed. Starting in March 2016, Tesat began the most labor-intensive time with the implementation of the TVAC tests in Ottobrunn. The payload had to be fully tested in full vacuum and CATR. This was the first time that the behavior and the performance of the system could be observed and tested under outer space conditions. For over three months, our AIT colleagues worked at IABG in three-shift operation, producing more than 21,000 PDF test reports during this time with our test system, which were then evaluated by our system engineers on site and in Backnang.

  • In September 2016 after many thousands of individual tests the results were confirmed: "The Tesat Payload successfully passed all environmental tests!"
  • On 29 November 2016, the first SmallGEO satellite from Germany left Munich airport on Board an Antonov in direction of Cayenne/Guyana, from where it was then transported to Kourou to the Center Spatial Guyanais
  • In December 2016, the last and final RF measurements of Tesat following the preparations for the start took place
  • On 28 January 2017 at 02:03 (CET) it was time: Hispasat 36W-1 (HAG1) started with a Soyuz from Kourou into geostationary Orbit