biweekly winner (weeks 27-28), discord user: MiyabiLover.
Our first biweekly highlights contest has gotten it's winner. The winner is MiyabiLover with their homemade antenna. This project taps into weather satellite transmissions using an RTL-SDR dongle and open-source tools, turning raw radio signals into striking images of Earth’s atmosphere.
MSA Multi-Spectral Analysis sensor & other enhancements
Visible light camera
MiyabiLover tells us about their project:
The antenna
Is built out of two aluminium rods that are cut to precisely 53.4cm and angled 120° out of eachother, both of them are fixed to a solid object to keep them in place and the two rods are soldered to a coaxial cable (can also be a regular antenna cable) and is wired to an RTL-SDR dongle which is connected to a computer which is running a software to decode the signal.
The software
I'm currently using Satdump earlier when I made these messages I used Sdr++ to record the audio and WXtoIMG to process the data to usable information I used these earlier because they're easier to use but now I switched to Satdump which has everything built in but is more advanced.
How it works
So basically you set up your rig and tune your software to the frequency of the satellite that you want to receive, most of them broadcast in the 137MhZ frequency then wait for the satellite to pass by and when it is over the horizon you should hear a distinct beeping which is the encoded data broadcasted by the satellite the WXtoIMG program should automatically start to decode the data and the result would be a photo from the satellite from space since it constantly takes pictures of the earth to monitor the climate etc you can see the temperature/cloud activity/thunderstorm/precipitation and more (depending how well you received the transmission).
All images in this article fall under the following copyright: Image © 2025 MiyabiLover. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0).