Multiple Access in Satellite Communication are:
a / method used a satellite transponder in general for many ground stations, to increase the efficient use of spectrum.
b / Method using transponders on defense General satellite ground stations, to increase the efficient use of spectrum.
c / Method allows ground stations have random access to any particular transponder on the satellite
d / Method allows ground stations can access any information satellites in orbit.
The system of mobile satellite communications (mobile-satellite) uses trajectory:
a / MEO or HEO
b / LEO or HEO
c / LEO combined MEO
d / LEO or MEO
satellite communication system mobile use of L-Band frequency and band S because:
a / Limit signal attenuation on the line
b / Enable limit generating capacity
c / Consistent with ground stations
d / All 3 answers are true there
can be transmitted the signal format through satellite communication system?
a / Signal Voice, Fax
b / Credits Brand Data, Internet
c / television signals
d / All signal formats.
The biggest drawback of satellite communication system are:
a / Signal large losses
b / signal loss, major delays and the initial investment cost of large
c / large delay time
d / Funding large initial investment
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