August 28, 2018 Germany Launches Communication Satellite

If you searched for Germany launching a communications satellite on August 28, 2018, you've got the wrong date. Germany's Heinrich Hertz satellite didn't launch until 2023, making it the country's first dedicated communications satellite mission. Developed by OHB System AG for the German Aerospace Center, it took 14 years from conception to orbit. There's a lot more to this mission's story than its launch date suggests.

Key Takeaways

• The Heinrich Hertz Mission is Germany's first dedicated communications satellite, developed by OHB System AG for the German Aerospace Center (DLR).
• The mission was jointly funded by Germany's Federal Ministry for Economic Affairs and the Federal Ministry of Defence, reflecting dual civilian and military goals.
• Originally targeted for a 2016 launch, the project faced significant delays due to complex technology development and coordination challenges between civilian and military requirements.
• The satellite tests over 20 advanced communication technologies, including antennas, high-frequency components, and inter-satellite links under extreme space conditions.
• The mission aims to replace foreign satellite capacity with sovereign infrastructure, reducing Germany's reliance on third-party communications systems.

What Was the Heinrich Hertz Mission?

Germany's Heinrich Hertz mission was the country's first dedicated communications satellite mission, designed to test and validate new satellite communications technologies under the extreme conditions of space. You can think of it as Germany's way of proving that cutting-edge satellite communications systems actually work beyond Earth's atmosphere, not just in a lab.

OHB System AG developed the satellite for the German Aerospace Center (DLR) on behalf of federal ministries. About the size of a minivan, Heinrich Hertz was based on the SmallGEO geostationary satellite principle. It wasn't built for commercial services — its purpose was strictly scientific and strategic. The mission combined civilian experimentation with military communications capability, giving Germany a secure, nationally controlled communications infrastructure while advancing long-term research in space-based technology.

Why Germany Needed Its Own Communications Satellite

For a country as technologically advanced as Germany, relying on commercially sourced satellite capacity for military communications was a vulnerability it couldn't ignore. You can see why satellite security became a national priority — leasing capacity from third parties meant depending on infrastructure Germany didn't fully control.

The Heinrich Hertz mission addressed this directly. By developing its own communications technology, Germany could test advanced payloads under real space conditions while simultaneously building a dedicated Bundeswehr transmission capability. The mission's Ku-band and Ka-band segments were designed to replace some commercially sourced capacity with something sovereign and long-term.

Communication technology developed through this mission also supported Germany's broader goal of enabling high data rates for mobile end users — strengthening both military readiness and national communications infrastructure for years ahead.

Why Did Heinrich Hertz Take 14 Years to Reach Orbit?

When a project spans 14 years from conception to launch, delays aren't just scheduling hiccups — they reflect the real complexity of building sovereign space infrastructure. Heinrich Hertz's journey began in mid-2009, with an original target of 2016. That timeline slipped to 2021, then finally to 2023.

The satellite challenges behind these launch delays weren't trivial. Developing over 20 advanced experiments covering antennas, high-frequency components, and inter-satellite links — all validated for extreme space conditions — demands rigorous testing cycles. The contract between DLR and OHB wasn't even signed until June 2017, years after phase A began.

You're looking at a program juggling civilian research goals, Bundeswehr military requirements, and national infrastructure ambitions simultaneously. That kind of multi-stakeholder complexity doesn't move fast — it moves carefully.

Who Actually Built the Heinrich Hertz Satellite?

Behind the Heinrich Hertz satellite sits a clear division of responsibility. OHB System AG handled the hands-on satellite construction, managing everything from design and development to testing and launch. DLR Space Administration oversaw project planning and implementation, while two federal ministries provided funding and direction. Together, they pushed forward cutting-edge space technologies for Germany's national communications goals.

Here's how responsibilities broke down:

1. OHB System AG — designed, built, tested, and launched the satellite
2. DLR Space Administration — managed project planning and implementation on behalf of federal ministries
3. BMWi and BMVg — jointly funded and directed the mission from civilian and defense perspectives

You can see this wasn't a solo effort. It took a coordinated national program to get Heinrich Hertz into orbit.

Where Did the Funding for Heinrich Hertz Come From?

Funding for the Heinrich Hertz mission came from two federal ministries: the German Federal Ministry for Economic Affairs and Energy (BMWi) and the German Federal Ministry of Defence (BMVg). These two ministries jointly backed the program, with DLR Space Administration managing project planning and implementation on their behalf. The budget allocation reflected the mission's dual purpose — advancing civilian communications technology while also building long-term military satellite capacity for the Bundeswehr. You can see how Germany structured its funding sources to serve both scientific and defense goals within a single program. OHB System AG received the contract to develop, build, test, and launch the satellite using this combined federal support. The mission wasn't commercially funded — it was entirely a national program driven by government priorities. Similarly, the Cheers theme song was funded and produced as a focused national cultural effort, with Gary Portnoy layering six vocal tracks to create the illusion of a full chorus rather than hiring multiple singers.

What Technologies Did Heinrich Hertz Test in Space?

With federal funding secured from both BMWi and BMVg, Germany put that investment to work testing a wide range of cutting-edge technologies aboard Heinrich Hertz. The satellite carried over 20 experiments designed to push communication technologies and satellite capabilities to their limits under real space conditions.

Here's what the mission focused on testing:

1. Advanced antennas and high-frequency components — validating next-generation hardware in geostationary orbit
2. Ku-band and Ka-band military communications — providing the Bundeswehr with long-term transmission capacity
3. Inter-satellite links and broadband systems — supporting high data rates for mobile end users

You can see how each experiment built toward a stronger, more secure national communications infrastructure — one that doesn't rely on commercial sources for critical satellite capabilities.

How Was the Payload Split Between Military and Civilian Use?

Those 20+ experiments weren't purely academic — the Heinrich Hertz satellite divided its payload between civilian research and a dedicated military communications segment for the Bundeswehr. On the civilian satellite side, you'll find the bulk of the experimental work: advanced antennas, high-frequency components, inter-satellite links, and broadband technology aimed at supporting high data rates for mobile users. On the military communications side, the satellite carried Ku-band and Ka-band capacity specifically for the German armed forces. That Ku-band segment was designed to replace some commercially sourced capacity the Bundeswehr had previously relied on. The military segment wasn't temporary — it was built to provide long-term transmission capability. So while the mission advanced German science, it simultaneously strengthened the country's defense communications infrastructure on a sustained, operational basis. This dual-use approach mirrors broader global trends, as nations increasingly integrate advanced technologies into both civilian and defense systems, much like China's strategy of embedding AI deeply into its economy and national defense infrastructure.

How Did Ariane 5 Carry Heinrich Hertz Into Geostationary Orbit?

On July 6, 2023, an Ariane 5 rocket lifted Heinrich Hertz off the launch pad at Europe's Spaceport in Kourou, French Guiana, and carried it into geostationary orbit. The launch sequence executed flawlessly, delivering satellite deployment at the correct orbital position. Here's what made this mission notable:

1. Rocket: Ariane 5, operated by Arianespace, provided the heavy-lift capability required for geostationary placement.
2. Destination: The satellite reached geostationary orbit, positioning it for 15 years of operation.
3. Operator: Europe's Spaceport infrastructure supported the entire launch sequence from ground systems to separation.

You can see how this launch marked a turning point for Germany's space communications ambitions, combining proven European launch technology with cutting-edge national satellite capability.

What Will Heinrich Hertz Do During Its 15-Year Mission?

Over its 15-year operational lifespan, Heinrich Hertz will run around 20 experiments testing advanced antennas, high-frequency components, and inter-satellite links under the extreme conditions of space. You'll see the mission push satellite capabilities forward by validating Ku-band and Ka-band military communications segments, giving Germany's Bundeswehr reliable, long-term transmission capacity without depending on commercial sources.

Beyond defense, Heinrich Hertz will test how broadband communications can support high data rates for mobile end users, driving real communications advancements that could shape future national infrastructure. DLR and OHB designed this mission not to provide commercial services but to gather critical in-orbit data. Every experiment builds a clearer picture of what next-generation German satellites will need to perform reliably and securely in space.

How Heinrich Hertz Advances Germany's Push for Space Independence

Heinrich Hertz represents two strategic priorities at once: advancing Germany's scientific capabilities and securing an independent military communications pipeline. Germany's space strategy isn't just about science—it's about reducing reliance on foreign infrastructure. Heinrich Hertz pushes satellite autonomy forward by proving that Germany can design, build, and operate its own advanced communications systems.

Here's why this matters for Germany's independence:

1. National security: The Bundeswehr gains long-term satellite transmission capacity without depending on commercial providers.
2. Technological sovereignty: Over 20 experiments validate cutting-edge components developed domestically by OHB System AG.
3. Civilian-defense integration: BMWi and BMVg jointly fund the mission, aligning scientific and military goals under one platform.

Together, these priorities position Germany as a self-sufficient player in the global space communications arena.