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Q.1
What is the local oscillator (mixer) frequency of the satellite with an uplink frequency in GHz band?
3500 MHz
4500 MHz
2225 MHz
2555 MHz
Q.2
How may satellite orbital slots are requested by the Philippine Government from ITU?
2
4
6
8
Q.3
The radiation patterns of earth coverage antennas have a beamwidth of approximately
21˚
5˚
17˚
35˚
Q.4
What kind of battery panels are used in some advance satellites
Germanium based panels
Silicon based panel
Galium Phosphate solar panel array
Galium Arsenide solar panel array
Q.5
A method of multiple accessing where a given RF channel bandwidth is divided inot smaller frequency band.
CDMA
ANIK-D
TDMA
FDMA
Q.6
Point on the satellite obits closest to the earth.
Apogee
Perigee
Prograde
Zenith
Q.7
Satellite engine uses
Jet propulsion
Ion propulsion system
Liquid fuel
Solar jet
Q.8
The earth area covered by a satellite radio beam.
Beamwidth
Bandwidth
Footprint
Zone
Q.9
The first satellite to receive and transmit simultaneously
Intelsat I
Agila I
Syncorn I
Telstar I
Q.10
The switching from one element to the other element in a typical mobile satellite array.
Series
Radial
Matrix
Shunt
Q.11
What circuit is responsible in activating and deactivating adjacent antenna elements in a mobile satellite array?
Radial divider
Divider/combiner
Radial combiner
Radial multiplexer
Q.12
INTELSAT stands for
Intel Satellite
International Telephone Satellite
International Telecommunications Satellite
International Satellite
Q.13
A satellite batter has more power but lighter.
Lithium
Leclanche
Hydrogen
Magnesium
Q.14
Repeaters inside communications satellites are known as
Trancievers
Transponders
Transducers
TWT
Q.15
The bandwidth of C-band satellite frequency band in U.S.
500 GHz
1000 GHz
1000 MHz
500 MHz
Q.16
_________ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency.
Horn antenna
LNA
Satellite receiver
Satellite dish
Q.17
What kind of battery used by older satellites?
Lithium
Leclanche
Hydrogen
Magnesium
Q.18
The location of AsiaSat I.
105.5˚ East
151.5˚ East
115.5˚ East
170.5˚ East
Q.19
The most common device used as an LNA is
Zener diode
Tunnel diode
IMPATT
Shockley diode
Q.20
Most mobile satellite array uses ___________ in transforming 50 to 150 Ω impedance.
Stub
Balun
Quarter-wavelength transformer
Microstrip tapers
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