Technician 2022-2026T8B12

Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

C
Answer
Signals, emissions, and modulation
Type
A
Check your signal strength report in the telemetry data
B
Listen for distortion on your downlink signal
C
Your signal strength on the downlink should be about the same as the beacon
D
All these choices are correct

Answer Notes

When transmitting to an amateur satellite (uplink), it is crucial not to use too much power. If your signal is too strong, it can drain the satellite's batteries or trigger its automatic gain control (AGC), which suppresses the signals of other users trying to use the transponder. The best way to gauge your power is to monitor your own signal coming back on the downlink and compare it to the satellite's continuous telemetry beacon. Your repeated signal should be roughly the same strength as the beacon. Distractors like checking telemetry reports or listening for distortion are incorrect because telemetry doesn't usually report individual user signal strengths in real-time, and distortion doesn't necessarily indicate a power mismatch.
Previous · T8B11
Who may receive telemetry from a space station?
Next · T8C01
Which of the following methods is used to locate sources of noise interference or jamming?