The Relay system
System design tradeoffs, spacecraft specifications, and orbit characteristics for Relay I satellite
SPACECRAFT DESIGN↗
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The Relay spacecraft
Structure, power, communications, telemetry, tracking, and command for Relay I spacecraft
COMMAND SYSTEM↗
GSFC Relay Communications Satellite Test Station
Telemetry, command, wideband communications transmitter, receiver, video, frequency-division multiplex telephone, and tracking and antenna systems for Relay I satellite test stations
WIDEBAND COMMUNICATION↗
The Relay Test Station low noise receiving and demodulation systems
Relay I test station low noise receiving and demodulation systems using wideband phase lock demodulator
NOISE REDUCTION↗
Relay system operations
In-orbit operational aspects of Relay I satellite and requirements for satellite command and for real time telemetry data reduction
DATA REDUCTION↗
The energetic particle environment of Relay I
Energetic particle environment of Relay I, damage due to proton exposure, and trapped radiation belts
PARTICLE EMISSION↗
Relay I trapped radiation measurements
Spatial dependence of intensities of geomagnetically trapped electrons and protons measured by Relay I spacecraft
TRAPPED RADIATION↗
The Relay I radiation effects experiment
Short circuit current measurements to determine radiation damage to solar cells on Relay I satellite
RADIATION MEASUREMENT↗
Results of Relay I narrowband experiments
Narrowband experiments on Relay I to determine performance characteristics in orbit
PERFORMANCE CHARACTERISTICS↗
Results of tests performed with Relay I at the Pleumeur-Bodou Space Communications Station
Tests performed on Relay I satellite at Pleumeur-Bodou space communications ground station
SPACE COMMUNICATION↗
Results of tests performed with Relay I at the Raisting Space Communications Station
Insertion gain, random noise, amplitude-frequency baseband, intelligible crosstalk, and teletype transmission experiments with Relay I at Raisting ground station
RELAY I SATELLITE↗
Description and results of tests performed at Fucino Earth Station with Relay I
Communications and tracking facilities of Fucino ground station in Italy, and experiments conducted with Relay I satellite
COMMUNICATION SYSTEM↗
Results of tests performed with Relay I at the KDD Space Communications Station
Wideband receiving experiments performed with Relay I satellite at Kokusai Denshin Denwa space communication ground station
GROUND STATION↗
Results of tests performed with Relay I at the Goonhilly Downs Space Communications Station
Results of tests performed with Relay I satellite at Goonhilly Downs space communications ground station
GROUND STATION↗
Contacts of relay-type elements and microswitches which commutate low level signals
Electric contact for relay elements and microswitches in low level signal devices
RELAY↗
Navigation experiment utilizing Relay II SATELLITE
Navigation experiment using Relay II satellite ranging measurements
RELAY II SATELLITE↗
Preliminary antenna design considerations for a STADAN relay satellite system
Antenna design for multiple-beam, wide angle scanning phased array relay satellite system
PHASED ARRAY↗
Systems comparison of direct and relay link data return modes for advanced planetary missions
Advanced planetary missions using direct and relay link data return modes
RELAY SATELLITE↗