Technician 2026-2030T8B03

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 communicating via amateur radio satellites. They provide a wealth of vital information, including visual maps that show the satellite's real-time footprint and track over the Earth. Furthermore, these programs calculate the precise times and angles (azimuth and elevation) for when the satellite will appear above the horizon, reach its maximum altitude, and disappear. This allows operators to know exactly when and where to point their directional antennas. Finally, because satellites move very fast relative to the Earth, the software calculates the required frequency adjustments to compensate for Doppler shift, ensuring your transceiver remains tuned to the correct apparent frequency throughout the pass.
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What mode of transmission is commonly used by amateur radio satellites?