Amateur Satellite Operation Flashcards
Which amateur radio stations may make contact with an amateur radio station on the International Space Station (ISS) using 2 meter and 70 cm band frequencies?
Any amateur holding a Technician or higher-class license
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
What mode of transmission is commonly used by amateur radio satellites?
All of these choices are correct
(SSB
FM
CW/data)
What is the impact of using too much effective radiated power on a satellite uplink?
Blocking access by other users
Which of the following is a good way to judge whether your uplink power is neither too low nor too high?
Your signal strength on the downlink should be about the same as the beacon
What do the initials LEO tell you about an amateur satellite?
The satellite is in a Low Earth Orbit
What is a satellite beacon?
A transmission from a satellite that contains status information
What telemetry information is typically transmitted by satellite beacons?
health and status of the satellite
WHo may receive telemetry from a space station?
Anyone who can receive the telemetry signal
Which of the following are provided by satellite tracking programs?
All of these are correct
(Maps showing the real-time position of the satellite track over the earth
The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
The apparent frequency of the satellite transmission, including effects of Doppler shift
Which of the following are inputs to a satellite tracking program?
The Keplerian elements
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
