April 14, 2018 Germany Launches Communication Satellite

If you're searching for a German communications satellite launched on April 14, 2018, you won't find an exact match. Germany's most notable communications satellite, Heinrich Hertz, didn't launch until July 2023 — nearly 15 years after development began. Built by OHB Systems under a €310.5 million contract, it carries roughly 20 technology experiments supporting both civil and military communications. There's much more to this mission's story if you keep exploring.

Key Takeaways

• Heinrich Hertz is Germany's communications satellite built by OHB Systems under a €310.5 million contract with the German Space Agency DLR.
• The satellite was not launched in April 2018; it was actually launched in July 2023 after multiple delays.
• Originally expected to launch in 2016, the timeline shifted to 2021 before the final July 2023 launch date.
• Heinrich Hertz carries approximately 20 technology experiments supporting both civilian and military communications research in orbit.
• The satellite marked a significant milestone as the final payload launched aboard the Ariane 5 rocket.

What Was the Heinrich Hertz Satellite Built to Do?

Germany's Heinrich Hertz satellite carried about 20 technology experiments designed to research and test new communications technologies and scenarios — making it the country's first dedicated communications satellite of its kind. Its mission objectives covered both civil and military applications, giving it a dual-purpose role that extended its value beyond pure research. You'll find that the satellite included fully functioning Ku-band and Ka-band military communications payloads, with the Ku-band capacity replacing some commercially sourced capacity and the Ka-band adding entirely new military capability. Onboard digital signal processing allowed it to directly handle received and forwarded information. These communication advancements positioned Heinrich Hertz as a long-term asset within Germany's space-based infrastructure, supporting a 15-year program managed by the German Space Agency at DLR.

What Technology Did Heinrich Hertz Actually Carry?

Onboard Heinrich Hertz, you'll find roughly 20 technology experiments packed into a single platform designed to push satellite communications research forward. These technology experiments cover a wide range of payload capabilities, including fully functioning Ku-band and Ka-band military communications systems. The Ku-band capacity helps replace some commercially sourced capacity, while the Ka-band adds entirely new military communications capability Germany didn't previously have. Beyond those two bands, the satellite also features onboard digital signal processing, which lets it directly handle, manage, and forward received information without relying on ground-based processing. That makes Heinrich Hertz more than a passive relay—it actively processes signals in orbit. Together, these payload capabilities give Germany a sophisticated research platform that supports both civilian technology development and defense communications advancement simultaneously.

Why Did the Heinrich Hertz Mission Take Years to Launch?

Although Heinrich Hertz launched in July 2023, the mission's roots stretch back much further—launch expectations had already shifted from 2016 to 2021 before slipping again to 2023, meaning the program absorbed well over half a decade of delays before it finally reached the pad. These launch delays reflect the mission challenges that come with building Germany's first dedicated communications satellite. You're looking at a program spanning roughly 15 years, carrying 20 technology experiments alongside both Ku-band and Ka-band military payloads—complexity that naturally extends timelines. OHB Systems had to meet civil and military requirements simultaneously under a €310.5 million contract, which added layers of technical and institutional coordination. When the satellite finally lifted off aboard the last-ever Ariane 5, the wait made the milestone feel considerably more significant.

Who Built Heinrich Hertz and What Did It Cost?

Behind those years of delays stood a concrete industrial partnership. OHB Systems built Heinrich Hertz under contract with DLR, and the total investment—covering production and launch costs—reached €310.5 million. That's real money tied to a real commitment.

Consider what that funding delivered:

1. Germany's first dedicated communications satellite for technology research
2. A fully operational Ku-band and Ka-band military communications payload
3. Nearly 20 onboard technology experiments shaping future satellite communications

You're looking at a program that started with an €11 million contract in 2011 and grew into something far larger. OHB Systems carried the industrial weight of that expansion. The launch costs alone reflect how seriously Germany treated this mission—not as optional, but as essential infrastructure for its future in space.

What Does Heinrich Hertz Mean for Germany's Military and Civil Communications?

What does it actually mean when a country moves from leasing commercial satellite capacity to owning the infrastructure outright? For Germany, it means control. Heinrich Hertz carries a fully functioning Ku-band payload that replaces commercially sourced capacity Germany previously relied on, while its Ka-band payload adds entirely new military capabilities the country didn't have before.

You're looking at a satellite that serves both sides of the equation. On the civil infrastructure front, it's running roughly 20 technology experiments designed to shape Germany's next generation of satellite communications. On the defense side, it's giving the German military direct, sovereign access to dedicated communications channels. That's a meaningful shift — from dependency to ownership — and it redefines how Germany operates in space-based communications for the next 15 years.