SpaceLink and U.S. Army to study use of relay constellation to deliver data to troops in the field - SpaceNews
First European Data Relay System Satellite Forges 20,000 Successful Laser Links - SpaceRef
SpaceLink hires OHB to build data relay satellites - SpaceNews
NASA Partners with Telesat Government Solutions to Develop a Tracking and Data Relay Satellite System
ESA - Data-relay satellite ready for service
U.S. tracking and data relay satellite - Wikipedia
U.S. tracking and data relay satellite - Wikipedia
The European Data Relay System (EDRS) - DLR Portal
Japan launches JDRS-1 optical data relay satellite for military, civilian use - SpaceNews
ESA - Overview
What is the European Data Relay System? - YouTube
Data-Relay Satellite Beams at Light Speed – The Most Sophisticated Laser Communication Network Ever Designed
What is a relay satellite? | NASA
Tracking and Data Relay Satellite System - Wikipedia
Tracking and Data Relay Satellite (TDRS) | NASA
Tracking and Data Relay Satellite System (TDRS) - General Dynamics Mission Systems
Dictionary: Tracking and Data Relay Satellite System
Data relay satellite system with hybrid light-links and microwave-links. | Download Scientific Diagram
European Data Relay System EDRS-C Successfully Launched - SpaceWatch.Global
NASA Viz: Data Relay Network
How NASA's TDRS Communications Satellites Work (Infographic) | Space
Tracking and Data Relay Satellite (TDRS) Third Generation Capabilities | NASA
Tdrs Tracking Data Relay Satellite Vision Stock Illustration 1340501522 | Shutterstock
Tracking and Data Relay Satellite (TDRS) | NASA
