![NASA astronaut Chris Cassidy on the ISS receives a call from Canadian students using a ham radio | Daily Mail Online NASA astronaut Chris Cassidy on the ISS receives a call from Canadian students using a ham radio | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/08/26/21/32416728-8666705-image-a-15_1598473485150.jpg)
NASA astronaut Chris Cassidy on the ISS receives a call from Canadian students using a ham radio | Daily Mail Online
![ARISS - Amateur Radio on the ISS on Twitter: "In the US, all you need is a Technician level ham radio license to use the repeaters on the #ISS. It's rare, but ARISS - Amateur Radio on the ISS on Twitter: "In the US, all you need is a Technician level ham radio license to use the repeaters on the #ISS. It's rare, but](https://pbs.twimg.com/media/FpljNYVXsAAam-U.jpg)
ARISS - Amateur Radio on the ISS on Twitter: "In the US, all you need is a Technician level ham radio license to use the repeaters on the #ISS. It's rare, but
![27 July 2018, Herrenberg, Germany: An amateur radio operator at the Schickhardt secondary school during a skype session with ESA astronaut Gerst who is currently stationed atop the international space station ISS. 27 July 2018, Herrenberg, Germany: An amateur radio operator at the Schickhardt secondary school during a skype session with ESA astronaut Gerst who is currently stationed atop the international space station ISS.](https://c8.alamy.com/comp/P7W5JT/27-july-2018-herrenberg-germany-an-amateur-radio-operator-at-the-schickhardt-secondary-school-during-a-skype-session-with-esa-astronaut-gerst-who-is-currently-stationed-atop-the-international-space-station-iss-for-a-total-of-eleven-minutes-the-pupils-from-herrenberg-and-leverkusen-could-speak-to-the-astronaut-photo-sebastian-gollnowdpa-P7W5JT.jpg)