Using a home-built antenna and a portable radio, I was able to contact fellow amateur radio enthusiasts in Japan and Malaysia, by bouncing a signal off a satellite in orbit. I will be sharing more posts about satellite communications soon!
The International Space Station (ISS) has been transmitting images since October 28 and will continue to do so in the next few days. It transmits in SSTV format—the same format used to send images to Earth during the Apollo missions. The transmissions can be received with any radio tuned at 145.8 MHz, and a decoder app such as Robot 36 (try installing that app and decode this recording).