Links to Space Radio
Earth's 2 Satellite Habitats
a brief look at their orbits
Humans have occupied two of earth's satellites. Amateur rsdio operators (Hams) have communicated between Earth and the International Space Station (ISS) in low Earth orbit. The ISS is human-occupied now; perhaps in a just a very few decades will be also. Then Hams will communicate between Earth and Moon. Meanwhile one can learn practice experiment with and enjoy space QSOs with the amateur sats in operation now.
Kepler's laws of planetary motion model the paths of these satellites. Each satellite traces an elliptical path around Earth. The Eartn's center coincides with a focus of the ellipse. A satellite shuttles between its furthest distance from Earth - apogee and its closest approach - perigee. An ephemeris is used to find the which where and when of satellites that orbit earth.
Here is a comparison of the qualities of the ISS and Moon of interest for radio communications.
ORBITS OF EARTH'S 2 HABITABLE SATELLITES
Orital Characteriscs of Moon and ISS Compared
Learn more about amateur radio space communication. Start by communicating with LEO amateur radio sats. Packet BBS and APRS is available as well as phone and CW. And a Technician licensee has full privileges on the amateur satellite bands. The links in the left panel will help you get started.