Technician 2022-2026T8B03

Which of the following are provided by satellite tracking programs?

D
Answer
Signals, emissions, and modulation
Type
A
Maps showing the real-time position of the satellite track over Earth
B
The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
C
The apparent frequency of the satellite transmission, including effects of Doppler shift
D
All these choices are correct

Answer Notes

Satellite tracking programs are essential tools for orbital communications, providing a comprehensive suite of data to ensure a successful contact. They visually display the satellite's footprint and trajectory over a map of the Earth in real-time. Additionally, these programs calculate the precise times for the Acquisition of Signal (AOS) and Loss of Signal (LOS), along with azimuth and elevation data, so you know exactly where to point your directional antenna. Finally, because satellites move rapidly relative to the Earth, their radio signals experience a Doppler shift. Tracking software calculates this shift and provides the apparent frequency to help you tune your radio accurately throughout the pass. Therefore, all the listed choices are correct.
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What mode of transmission is commonly used by amateur radio satellites?