Other Factors Influencing EME Communications
Doppler effect - 300 Hz at Moonrise/set
- At Moonrise, returned signals will be shifted approximately 300 Hz higher in frequency due to the Doppler effect between the Earth and Moon.
- As the Moon traverses the sky to a point due south the Doppler effect approaches nothing. As the Moon sets, signals are shifted lower in frequency until at Moonset they are shifted 300 Hz lower.
- Doppler effects cause many problems when tuning into and locking onto signals from the Moon.
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