Apolink makes contact with first relay satellite

2026-07-07 · Source: SpaceNews · Field: Transportation & Mobility — Aviation & Aerospace, Transportation Infrastructure · Depth: Intermediate, quick

Summary

Apolink successfully established contact with its IPoS-TDsM cubesat, launched July 7 on a SpaceX rideshare mission, initiating a data relay demonstration. This mission operates under a "first-of-its-kind" experimental FCC license for S-band inter-satellite link operations, allowing the 3U cubesat to receive signals from designated partner satellites, store them, and forward them to ground stations. The Interoperability Protocol over Satellite – Technology Demonstration Mission (IPoS-TDsM) is engineered to establish low-power links up to 150 kilometers, with conjunction windows anticipated from July through November. Its core function is to act as a transparent relay for satellite data, potentially enabling command-and-control signals without reliance on ground passes. Singapore-based NuSpace is the primary partner, utilizing its NuLink-1 and NuLink-2 connectivity satellites. Apolink plans to deploy a 32-satellite relay network and partnered with Galaxia in February for a 2027 launch to enhance its in-orbit data relay capabilities.

Key takeaway

For satellite operators evaluating future communication architectures, Apolink's successful S-band inter-satellite link demonstration, enabled by a unique FCC experimental license, signals a viable path to reduce ground station dependency. You should explore similar transparent relay solutions to enhance command-and-control capabilities and data throughput, potentially leveraging experimental licenses for rapid innovation. This approach could significantly improve satellite autonomy and operational flexibility.

Key insights

A novel FCC experimental license enables Apolink's IPoS-TDsM cubesat to demonstrate transparent S-band inter-satellite data relay.

Principles

• Inter-satellite links can provide transparent data relay, reducing ground pass dependency.
• Experimental licenses facilitate novel space communication demonstrations.

Method

Receive S-band signals from partner satellites, digitize and forward them to ground stations, acting as a transparent relay layer for data integrity.

In practice

• Utilize S-band for inter-satellite data relay.
• Partner with existing satellite operators for in-orbit demonstrations.
• Pursue experimental licenses for novel space communication protocols.

Topics

• Apolink
• IPoS-TDsM
• S-band Communication
• Inter-satellite Links
• Data Relay Networks
• FCC Experimental License
• Cubesat Technology

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Editorial summary, takeaway, and curation by AIssential. Original article published by SpaceNews.