U.S. tracking and data relay satellite - Wikipedia
Inmarsat and AVI's satellite data-relay service exits stealth mode after months of secret, in-space tests - SpaceNews
Japan launches JDRS-1 optical data relay satellite for military, civilian use - SpaceNews
Data relay satellite system with hybrid light-links and microwave-links. | Download Scientific Diagram
JAXA | Data Relay Test Satellite "KODAMA" (DRTS)
Tracking and Data Relay Satellite System - Wikipedia
Real-Time Relay of Remote Sensing Data - SpaceLink Real-Time Relay of Remote Sensing Data
European Data Relay System EDRS-C Successfully Launched - SpaceWatch.Global
Europe Eyes Expanded Data-relay Service - SpaceNews
How NASA's TDRS Communications Satellites Work (Infographic) | Space
First European Data Relay System Satellite Forges 20,000 Successful Laser Links - SpaceRef
SpaceLink and U.S. Army to study use of relay constellation to deliver data to troops in the field - SpaceNews
IDRSS Indian Data Relay Satellite System - YouTube
Tracking and Data Relay Satellite (TDRS) | NASA
Mars Express Sets Data Relay Record - SpaceRef
What is a relay satellite? | NASA
What is the European Data Relay System? - YouTube
Tracking and Data Relay Satellite (TDRS) | NASA
Tracking and Data Relay Satellite (TDRS) Third Generation Capabilities | NASA
ESA - The European Data Relay Satellite System – EDRS
Tracking and Data Relay Satellite System (TDRS) - General Dynamics Mission Systems
What is a relay satellite? | NASA
ESA - Overview
What is a relay satellite? | NASA
The European Data Relay System (EDRS) - DLR Portal
Data-Relay Satellite Beams at Light Speed – The Most Sophisticated Laser Communication Network Ever Designed
