Communications Satellites: Hearings Before the Committee on Science and Astronautics, U.S. House of Representatives, Eighty-seventh Congress, First Session, May 8, 9, 10, and July 18, 1961, Volumes 1-2 |
From inside the book
Results 1-3 of 81
Page 826
... surface systems . The antenna gain of the surface system is assumed to be -7 db from isotropic except when directed at the earth terminal . ( A ) ACTIVE NON - STATIONARY SATELLITE SYSTEM ( 1 ) These calculations consider the ...
... surface systems . The antenna gain of the surface system is assumed to be -7 db from isotropic except when directed at the earth terminal . ( A ) ACTIVE NON - STATIONARY SATELLITE SYSTEM ( 1 ) These calculations consider the ...
Page 850
... surface receiver ) = -124 dbw A ( for 22 , 300 miles at 6. 5 kmc ) = 200 db The interference calculation is as follows : -200 db space loss 20 db satellite transmitter antenna gain - 180 db 31 db surface system receiver antenna gain ...
... surface receiver ) = -124 dbw A ( for 22 , 300 miles at 6. 5 kmc ) = 200 db The interference calculation is as follows : -200 db space loss 20 db satellite transmitter antenna gain - 180 db 31 db surface system receiver antenna gain ...
Page 873
... ( surface ) microwave systems , and can with some other surface services ; satellite systems for mobile communication or for broadcasting to home re- ceivers probably cannot . Some surface services are less able to share fre- quencies ...
... ( surface ) microwave systems , and can with some other surface services ; satellite systems for mobile communication or for broadcasting to home re- ceivers probably cannot . Some surface services are less able to share fre- quencies ...
Contents
The Growth of the Concept | 12 |
2What segments of the radio spectrum are required | 18 |
Exhibit AThe SCORE Satellite Radio Relay System | 25 |
Copyright | |
9 other sections not shown
Common terms and phrases
active ADVENT agencies altitude ANFUSO antenna antenna gain antitrust application areas bandwidth basis booster BUSIGNIES cable CCIR CHAIRMAN channels commercial committee common carriers communica Communications Act communications satellite system companies competition Corp countries CRAVEN DINGMAN docket earth terminal echo suppressors Electric ENGSTROM equipment established facilities Federal Communications Commission frequency allocations FULTON going Government ground stations industry interference international communications joint venture KARTH launching Mc/s megacycles ment microwave miles military munications MURROW NASA noise operation orbit ownership PAIGE participation passive satellite point-to-point possible present problems proposed public interest question radio receiver regulation research and development RYAN satel satellite communications system signal solar cells space communications Space Council space radiocommunication space vehicles spectrum statement synchronous satellite technical telecommunications Telegraph Telesat television THAMES tion traffic transmission transmitter United WEBB