Download or read book Utilizing a TDRS Satellite for Direct Broadcast Satellite radio Propagation Experiments and Demonstrations written by and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Direct Broadcast Satellite written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-17 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: NASA is committed to providing technology development that leads to the introduction of new commercial applications for communications satellites. The Direct Broadcast Satellite-Radio (DBS-R) Program is a joint effort between The National Aeronautics and Space Administration (NASA) and The United States Information Agency/Voice of America (USIA/VOA) directed at this objective. The purpose of this program is to define the service and develop the technology for a direct-to-listener satellite sound broadcasting system. The DBS-R Program, as structured by NASA and VOA, is now a three-phase program designed to help the U.S. commercial communications satellite and receiver industry bring about this new communications service. Major efforts are being directed towards frequency planning hardware and service development, service demonstration, and experimentation with new satellite and receiver technology. Hollansworth, James E. Glenn Research Center NASA-TM-105910, E-7355, NAS 1.15:105910 RTOP 144-10-2A...
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1994 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1993 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Lewis Research Center Technical Publications Announced in 1993 written by and published by . This book was released on 1994 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Direct Broadcast Satellite Radio Program written by and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Satellite to satellite Radio Propagation Experiment written by Samuel E. CRAIG and published by . This book was released on 1965 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes in detail the preparations for a satellite-to-satellite radio propagation experiment which is intended to study various characteristics of the ionosphere and modes of electromagnetic propagation in the HF region. The experiment consists of a receiver group which is placed in orbit on a suitable satellite vehicle, and a transmitter group which is ejected from the main vehicle in orbit. The transmitting subsatellite gradually separates from the receiving package, and transmits a program of pulse and CW modes to it on two harmonically related frequencies. In addition, two cooperative HF ground stations will receive signals from the transmitting satellite, as well as telemetered data from the receiver group. The details of the payload equipment and ground stations are given in the report, as well as prelaunch checkout procedures and results. (Author).
Download or read book Advanced S Band Studies Using the Tdrss Communications Satellite written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report will describe the design, implementation, and results of a propagation experiment which used TDRSS to transmit spread signals at S-Band to an instrumented mobile receiver. The results consist of fade measurements and distribution functions in 21 environments across the Continental United States (CONUS). From these distribution functions, some idea may be gained about what system designers should expect for excess path loss in many mobile environments. Some of these results may be compared against similar measurements made with narrowband beacon measurements. Such comparisons provide insight into what gains the spread signaling system may or may not have in multipath and shadowing environments. Jenkins, Jeffrey D. and Osborne, William P. and Fan, Yiping Unspecified Center...
Download or read book Direct Broadcast Satellite radio written by Des R. Sood and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Test Report Low Cost Access to Tdrs Using Topex to Emulate Small Satellite Performance written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-06 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report lists the objectives and conclusions of a series of experimental contacts between the TOPEX and the TDRS satellites. These experiments are designed to verify the theoretical prediction that a spin-stabilized satellite with a broad-beam, zenith-pointing antenna can have regular, significant contacts with the TDRS and use those contacts for data services. This series of experiments is a joint project between the experimenters at New Mexico State University (NMSU), the National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC), and the Jet Propulsion Laboratory (JPL). In these experiments, we show that: (1) The satellite contacts during the experiment begin and end as predicted prior to the experiment; (2) The data contact is held for the desired contact duration; (3) The data quality through the contact is high and similar to that required by actual project needs; and (4) The receiving hardware at the White Sands Complex (WSC) is able to track the signals better than expected by analysis of the antenna pattern effects alone predict. We believe that these experiments successfully demonstrate the basic concept and its validity with actual spacecraft systems. Horan, Stephen Goddard Space Flight Center NAG5-1491
Download or read book Direct Broadcast Satellite radio written by Nasser Golshan and published by . This book was released on 1991 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The United States and the Direct Broadcast Satellite written by Sara Fletcher Luther and published by Oxford University Press, USA. This book was released on 1988 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The possibilities of Direct Broadcast by Satellite (DBS) have provoked serious debate in modern telecommunications circles, raising vital questions of state sovereignty, cultural interaction, and the functioning of political and economic systems. In this ground-breaking study, Dr. Luther identifies the social, political, and economic factors underlying the evolving international controversy and situates the debate in the larger arena of postwar power relationships, including the rise of socialist and Third World countries. Placing these issues in a unique historical framework, she discusses the rise of international regulation through the International Telecommunications Union (ITU), the role of radio interests in the United States, and the legitimizing effect of the then-emerging mass communications research and scholarship. Dr. Luther also devotes particular attention to the First Amendment and "free flow" arguments put forth by the United States in support of an unfettered international transmission of radio and television signals via satellite. A provocative, insightful work, The United States and the Direct Broadcast Satellite will do much to help clarify the ongoing DBS debate.
Download or read book Study of Radio Program Distribution by Direct Broadcast Satellite written by R. Chang and published by . This book was released on 1981 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
