Amateur Radio Satellite Communications: A Comprehensive Guide

Amateur radio satellite communications represent one of the most fascinating aspects of the hobby, combining radio technology, space science, and global connectivity. Since the launch of OSCAR 1 (Orbiting Satellite Carrying Amateur Radio) in 1961, radio amateurs worldwide have been communicating through an ever-evolving fleet of satellites, pushing the boundaries of what’s possible with relatively modest equipment.

How Amateur Radio Satellite Communications Work

At its core, satellite communication involves transmitting radio signals to a satellite in orbit, which then retransmits these signals back to Earth. However, the technical details make this seemingly simple concept both challenging and rewarding.

CT1ETE 🛰 Feb 14

Yesterday, I was lucky enough to have worked Adam K0FFY, operating portable in US Virgin Islands as KP2/K0FFY, using RS-44 satellite. This is a nice QSO for me as I operate from my home with an X-30 vertical antenna from Diamond, which is a challenge due to extreme fading and weak signals.

Thanks Adam!

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I am really happy to have worked @K0FFY_Radio Adam in FK77 with my X30 antenna. "That's one small step for man, one giant leap for mankind." #amsat #hamradio pic.twitter.com/3mWPyAp9cc

CT1ETE 🛰 Apr 29

I love Antarctica 😍 #hamradio #Antarctica

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DP0GVN @ Neumayer Station III
I've been waiting a long time for this moment and today I was able to make it. I am a huge fan of Antarctica and I collect as much stations as possible #amsat #qo100 pic.twitter.com/QI1bOHkOXv

— CT1ETE 🛰 (@CT1ETE) November 22, 2024

CT1ETE 🛰 Apr 25

Two grids (IJ23 & IJ24) today, with DP0POL/MM, operated by Felix DL5XL. Great operator and always keen to a good conversation after the pileups. #amsat @amsatdl #hamradio #qo100

Watch DP0POL/MM in action via QO-100 Satellite

CT1ETE 🛰 Apr 14

I made radio contact with cosmonaut Alexander Grebenkin, aboard the International Space Station, during the Yuri Gagarin International Contest #rs0iss #iss #space #hamradio #amsat https://t.co/b6UBKM3HmP pic.twitter.com/4rjjnFfb2N

— CT1ETE 🛰 (@CT1ETE) April 14, 2024