800Px-International Space Station 17 April 2002
On 12/8/07 Ham radio operators, using morse code communicated by bouncing radio signals off the surface of the space station as it flew overhead, thanks Ollie AJ10! Link.


  • James

    Interesting. If you can bounce a signal off of the moon, aurora, or a meteor shower-why not a space station? I’m surprised that they tried using BPSK63 versus the more robust WSJT.

  • Robert, KC0KNM

    Having watched the ISS zip across the sky and having worked the packet station aboard it, I can relate to the author’s complaints about Doppler. Must have been quite a challenge! Very impressive.