UNIVERSE
SATELLITESICY BODIES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
C-band
|
|
|
Ku-band
|
|
|
L-band
|
|
|
X-band
|
Detailed explanation-1: -The first commercial VSATs were C band (6 GHz) receive-only systems by Equatorial Communications using spread spectrum technology.
Detailed explanation-2: -VSAT operates in distinct frequency bands (C, Ku & Ka, from 3.4 to 31 GHz).
Detailed explanation-3: -Ku-band satellite antennas are smaller than C-band antennas, but they are susceptible to rain fade during heavy rainfall (their signals can be affected by rain absorption). Ku-band is commonly used for broadcast and VSAT (Very Small Aperture Terminal) systems on ships and vessels.
Detailed explanation-4: -C band a lower range frequency better suited to voice and ISP needs. Ku band normally has much higher signal strength in areas of spot beams; this means that a signal can be received on much smaller dishes (antennas).
Detailed explanation-5: -The first passive satellite transponder was developed and launched by the United States in 1960. The satellite, known as Echo 1, was a large metallic balloon that was able to reflect radio signals back to Earth. The Echo 1 satellite was launched into a low Earth orbit and had a diameter of approximately 100 feet.