Further antenna pattern measurements in the 13-mm microwave band on the goldstone space communications station 30-ft antenna
Microwave band antenna pattern measurements
MICROWAVE ANTENNA↗
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Results for “SPACE COMMUNICATION”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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The electronic arraying of independently steerable high gain antennas for deep space communications
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Schrader, J. H.↗
Rio de Janeiro Space Communications Station
Use of Rio de Janeiro ground station for conducting Relay I transoceanic communication experiments
RELAY I SATELLITE↗
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↗
The Goonhilly Downs Space Communications Station
Facilities and equipment at Goonhilly Downs satellite system ground station - Steerable antenna, computing and data transmission, and helium system for maser installation
GROUND STATION↗
Space communication - Its implications for peace
Review of global communications development and need for cooperation in development of satellite communications system for peacetime applications
COMMUNICATION SYSTEM↗
Description of the installations at the Pleumeur-Bodou Space Communications Station
The Pleumeur-Bodou Ground Station, the research center of the National Ceneter for Telecommunications, is equipped to study all problems connected with active satellites: link performance, acquisition, tracking, telemetry, and command. This station is also intended for possible future commercial applications.
COMMUNICATIONS SATELLITE↗
A space communications study Progress report, 15 Sep. 1967 - 15 Mar. 1968
Threshold performance of phase locked loop demodulators, equivalence of frequency modulated threshold extension receivers, and frequency modulation multipath interference
Clarke, K. K.↗
Advancement of the general theory of multiplexing with applications to space communications Final report, May 1966 - May 1968
Orthogonal multiplexing theory and general design criteria related to unified S band communication systems
Shelton, R. D.↗
A 100 watt high efficiency traveling-wave tube for space communication.
High efficiency 100-watt traveling wave tube for spaceborne transmitter
Roberts, L. A.↗
20/20 space communications.
Satellite use for two way communication and tracking relays from ground to manned orbiting spacecraft
Hamilton, M.↗
A space communications study Status report, 15 Dec. 1968 - 15 Mar. 1969
Harmonic distortion in frequency demodulator using feedback, delta modulation, recursive signal processing techniques, and multipath fading
Clarke, K. K.↗
Feasibility model of an advanced crossed-field amplifier for space communication systems
Feasibility model of cross field amplifier for use in amplitude or frequency modulation transmitters
Bernstein, G.↗
Multikilowatt transmitter study for space communications satellites. Volume 1 - Summary report, phase 1
High power transmitters with potential applicability to satellite television broadcasting
Source record↗
Mathematical analysis for the performance assessment of space communication parameters, IBM-360 version
Development of equations to determine communication capability of pulse or digital transmission link is discussed. Equation specifies probability detection error for one-way transmission. Analysis is conducted on IBM 360 computer using FORTRAN 4.
Grayson, L.↗
Laser space communication experiment: Modulator technology
Results are presented of a contractual program to develop the modulator technology necessary for a 10.6 micron laser communication system using cadmium telluride as the modulator material. The program consisted of the following tasks: (1) The growth of cadmium telluride crystals of sufficient size and purity and with the necessary optical properties for use as laser modulator rods. (2) Develop a low loss antireflection coating for the cadmium telluride rods. (3) Design and build a modulator capable of 300 MHz modulation. (4) Develop a modulator driver capable of a data rate of 300 MBits/sec, 12 W rms output power, and 40 percent efficiency. (5) Assemble and test the modulator system. All design goals were met and the system was built and tested.
Goodwin, F. E.↗
High power microwave components for space communications satellite
Analyzed, developed, and tested were high power microwave components for communications satellites systems. Included were waveguide and flange configurations with venting, a harmonic filter, forward and reverse power monitors, electrical fault sensors, and a diplexer for two channel simultaneous transmission. The assembly of 8.36 GHz components was bench tested, and then operated for 60 hours at 3.5 kW CW in a high vacuum. The diplexer was omitted from this test pending a modification of its end irises. An RF leakage test showed only that care is required at flange junctions; all other components were RF tight. Designs were extrapolated for 12 GHz and 2.64 GHz high power satellite systems.
Jankowski, H.↗
Millimeter wave space communications - Recent experimental results and present development programs.
Major results of millimeter wave propagation measurements conducted with the ATS-5 satellite are reviewed, and their impact on the design of operational millimeter wave communications systems is evaluated. Statistical results show attenuation probabilities in different localities at various intervals of observation in an attempt at correlation with precipitation conditions. Advanced millimeter wave propagation experiments currently under development for the ATS-F satellite are also discussed.
Ippolito, L. J.↗