Motion picture cameras equipped with telephoto lenses were installed on the transmitting and receiving antennas at Holmdel, New Jersey. When the Echo satellite was visible, a camera obtained a photographic record of the pointing accuracy of the antenna. These data were then used to correlate variations of signal strength with deviations in antenna pointing angle
Prototype ground spheres, television and beacon telemetry system, and communication experiments for ...
Manually tracked antenna is the most critical part of range recording system which has signal streng...
In the precision-pointing mode the 70 meter antennas utilize an optical link provided by an autocoll...
The radar employed at the Bell Telephone Laboratories' Holmdel, New Jersey site for tracking the Ech...
The Project Echo communications experiment employed large, steerable,transmitting and receiving ante...
Cover title."September 1961."Communications and tracking installations, ground; Electronics; Space m...
This paper describes the mechanical features of the horn- reflector antenna used for receiving signa...
A tracking horn-reflector antenna, a maser preamplifier (and standby parametric preamplifier), and a...
The Echo I satellite receiving system at the Bell Telephone Laboratories facilities at Holmdel, New ...
On August 12, 1960, Echo I, a 100-foot-diameter spherical balloon, was placed in orbit around the ea...
The radar employed at the Bell Telephone Labora-tories ' Holmdel, New Jersey site for tracking ...
The primary experimental objective of Project Echo was the transmission of radio communications betw...
A 10-kw transmitter operating at 960 to 961 Mc was used at the eastern terminus of the Project Echo ...
The primary experimental objective of Project Echo was the transmission of radio communications betw...
Laser beam pointing tests using Surveyor vidicon camera for future point to point communication syst...
Prototype ground spheres, television and beacon telemetry system, and communication experiments for ...
Manually tracked antenna is the most critical part of range recording system which has signal streng...
In the precision-pointing mode the 70 meter antennas utilize an optical link provided by an autocoll...
The radar employed at the Bell Telephone Laboratories' Holmdel, New Jersey site for tracking the Ech...
The Project Echo communications experiment employed large, steerable,transmitting and receiving ante...
Cover title."September 1961."Communications and tracking installations, ground; Electronics; Space m...
This paper describes the mechanical features of the horn- reflector antenna used for receiving signa...
A tracking horn-reflector antenna, a maser preamplifier (and standby parametric preamplifier), and a...
The Echo I satellite receiving system at the Bell Telephone Laboratories facilities at Holmdel, New ...
On August 12, 1960, Echo I, a 100-foot-diameter spherical balloon, was placed in orbit around the ea...
The radar employed at the Bell Telephone Labora-tories ' Holmdel, New Jersey site for tracking ...
The primary experimental objective of Project Echo was the transmission of radio communications betw...
A 10-kw transmitter operating at 960 to 961 Mc was used at the eastern terminus of the Project Echo ...
The primary experimental objective of Project Echo was the transmission of radio communications betw...
Laser beam pointing tests using Surveyor vidicon camera for future point to point communication syst...
Prototype ground spheres, television and beacon telemetry system, and communication experiments for ...
Manually tracked antenna is the most critical part of range recording system which has signal streng...
In the precision-pointing mode the 70 meter antennas utilize an optical link provided by an autocoll...
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