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1992-01-26
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FCC EXTRA Exam Question Pool. Subelement 4BB.
Operating Procedures. 4 Questions.
---------------------------------------------------
4BB 1A1 C
What is an ascending pass for an amateur satellite?
A. A pass from west to east
B. A pass from east to west
C. A pass from south to north
D. A pass from north to south
4BB 1A2 A
What is an descending pass for an amateur satellite?
A. A pass from north to south
B. A pass from west to east
C. A pass from east to west
D. A pass from south to north
4BB 1A3 C
What is the period of an amateur satellite?
A. An orbital arc that extends from 60 degrees west
longitude to 145 degrees west longitude
B. The point on an orbit where satellite height is
minimum
C. The amount of time that it takes for a satellite
to complete one orbit
D. The time it takes a satellite to travel from
perigee to apogee
4BB 1B1 D
What is Mode A in an amateur satellite?
A. Operation through a 10-meter receiver on a satellite that
retransmits on 2 meters
B. The lowest frequency used in Phase 3 transponders
C. The highest frequency used in Phase 3 translators
D. Operation through a 2-meter receiver on a satellite that
retransmits on 10 meters
4BB 1B2 B
What is Mode B in an amateur satellite?
A. Operation through a 10-meter receiver on a satellite that
retransmits on 2 meters
B. Operation through a 70-centimeter receiver on a satellite
that retransmits on 2 meters
C. The beacon output
D. A codestore device used to record messages
4BB 1B3 B
What is Mode J in an amateur satellite?
A. Operation through a 70-centimeter receiver on a satellite
that retransmits on 2 meters
B. Operation through a 2-meter receiver on a satellite that
retransmits on 70 centimeters
C. Operation through a 2-meter receiver on a satellite that
retransmits on 10 meters
D. Operation through a 70-centimeter receiver on a satellite
that retransmits on 10 meters
4BB 1B4 B
What is Mode L in an amateur satellite?
A. Operation through a 70-centimeter receiver on a satellite
that retransmits on 10 meters
B. Operation through a 23-centimeter receiver on a satellite
that retransmits on 70 centimeters
C. Operation through a 70-centimeter receiver on a satellite
that retransmits on 23 centimeters
D. Operation through a 10-meter receiver on a satellite that
retransmits on 70 centimeters
4BB 1C1 B
What is a linear transponder?
A. A repeater that passed only linear or CW signals
B. A device that receives and retransmits signals of any mode
in a certain passband
C. An amplifier for SSB transmissions
D. A device used to change FM to SSB
4BB 1C2 A
What are the two basic types of linear transponders used in
amateur satellites?
A. Inverting and non-inverting
B. Geostationary and elliptical
C. Phase 2 and Phase 3
D. Amplitude modulated and frequency modulated
4BB 1D1 D
Why does the downlink frequency appear to vary by several
kHz during a low-earth-orbit amateur satellite pass?
A. The distance between the satellite and ground station
is changing, causing the Kepler effect
B. The distance between the satellite and ground station
is changing, causing the Bernoulli effect
C. The distance between the satellite and ground station
is changing, causing the Boyles' Law effect
D. The distance between the satellite and ground station
is changing, causing the Doppler effect
4BB 1D2 A
Why does the received signal from a Phase III amateur
satellite exhibit a fairly rapid pulsed fading effect?
A. Because the satellite is rotating
B. Because of ionospheric absorption
C. Because of the satellite's low orbital altitude
D. Because of the Doppler effect
4BB 1D3 B
What type of antenna can be used to minimize the effects of
spin modulation and Faraday rotation?
A. A nonpolarized antenna
B. A circularly polarized antenna
C. An isotropic antenna
D. A log-periodic antenna
4BB 2A1 A
How often is a new frame transmitted in a fast-scan television
system?
A. 30 times per second
B. 60 times per second
C. 90 times per second
D. 120 times per second
4BB 2A2 C
How many horizontal lines make up a fast-scan television
frame?
A. 30
B. 60
C. 525
D. 1050
4BB 2A3 C
How is the interlace scanning pattern generated in a fast-scan
television system?
A. By scanning the field from top to bottom
B. By scanning the field from bottom to top
C. By scanning even numbered lines in one field and odd numbered
lines in the next
D. By scanning from left to right in one field and right to left
in the next
4BB 2A4 B
What is blanking in a video signal?
A. Synchronization of the horizontal and vertical sync-
pulses
B. Turning off the scanning beam while it is traveling
from right to left and bottom to top
C. Turning off the scanning beam at the conclusion of a
transmission
D. Transmitting a black and white test pattern
4BB 2A5 A
What is the standard video voltage level between sync tip and
the whitest white at TV camera outputs and modulator inputs?
A. 1 volt peak-to-peak
B. 120 IEEE units
C. 12 volts dc
D. 5 volts rms
4BB 2A6 D
What is the bandwidth of fast-scan television transmission?
A. 3 kHz
B. 10 kHz
C. 25 kHz
D. 6 MHz
4BB 2A7 C
What is the standard video level, in percent PEV, for
black?
A. 0%
B. 12.5%
C. 70%
D. 100%
4BB 2A8 B
What is the standard video level, in percent PEV, for
white?
A. 0%
B. 12.5%
C. 70%
D. 100%
4BB 2A9 C
What is the standard video level, in percent PEV, for
blanking?
A. 0%
B. 12.5%
C. 75%
D. 100%
--------------------------------------------------
End of Subelement 4BB.