There’s an amateur radio on the International Space Station. Usually it’s configured in repeater mode which is how I was able to contact a fellow HAM in upstate New York. I communicated through this ISS radio in repeater mode which received my signal and re-broadcast it out.
Sometimes the astronauts talk to people on the ground too. This weekend was the National Association for Amateur Radio‘s annual Field Day event where amateurs around the world make contacts out in the field using battery or emergency backup power. Astronaut Kjell Lindgren was participating in the event making contacts on the ground. You can see a list of stations he received on his notepad in the photo.