T8B-2010: Amateur satellite operation; Doppler shift, basic orbits, operating protocols
T8B01:
Who may be the control operator of a station communicating through an amateur satellite or space station?
Any amateur whose license privileges allow them to transmit on the satellite uplink frequency
Only an Amateur Extra Class operator
A General Class licensee or higher licensee who has a satellite operator certification
Only an Amateur Extra Class operator who is also an AMSAT member
T8B02:
How much transmitter power should be used on the uplink frequency of an amateur satellite or space station?
The minimum amount of power needed to complete the contact
The maximum power of your transmitter
No more than half the rating of your linear amplifier
Never more than 1 watt
T8B03:
Which of the following can be done using an amateur radio satellite?
Talk to amateur radio operators in other countries
Get global positioning information
Make telephone calls
All of these choices are correct
T8B04:
Which amateur stations may make contact with an amateur station on the International Space Station using 2 meter and 70 cm band amateur radio frequencies?
Any amateur holding a Technician or higher class license
Only members of amateur radio clubs at NASA facilities
Only the astronaut’s family members who are hams
You cannot talk to the ISS on amateur radio frequencies
T8B05:
What is a satellite beacon?
A transmission from a space station that contains information about a satellite
The primary transmit antenna on the satellite
An indicator light that that shows where to point your antenna
A reflective surface on the satellite
T8B06:
What can be used to determine the time period during which an amateur satellite or space station can be accessed?
A satellite tracking program
A GPS receiver
A field strength meter
A telescope
T8B07:
With regard to satellite communications, what is Doppler shift?
An observed change in signal frequency caused by relative motion between the satellite and the earth station
A change in the satellite orbit
A mode where the satellite receives signals on one band and transmits on another
A special digital communications mode for some satellites
T8B08:
What is meant by the statement that a satellite is operating in "mode U/V"?
The satellite uplink is in the 70 cm band and the downlink is in the 2 meter band
The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
The satellite operates using ultraviolet frequencies
The satellite frequencies are usually variable
T8B09:
What causes "spin fading" when referring to satellite signals?
Rotation of the satellite and its antennas
Circular polarized noise interference radiated from the sun
Doppler shift of the received signal
Interfering signals within the satellite uplink band
T8B10:
What do the initials LEO tell you about an amateur satellite?
The satellite is in a Low Earth Orbit
The satellite battery is in Low Energy Operation mode
The satellite is performing a Lunar Ejection Orbit maneuver
The satellite uses Light Emitting Optics
T8B11:
What is a commonly used method of sending signals to and from a digital satellite?
FM Packet
USB AFSK
PSK31
WSJT
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● = Review
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● = Learned
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● = Incorrect answer
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