Getting Started
What SDR is, what to buy first, and how to receive your first signals.
Open guideWelcome
Start with SDR basics, then dive into satellite passes, frequency lookups, equipment picks, and a gallery of real receptions. Choose a path below.
Live Passes / Tracker
See what’s overhead and when to listen. Interactive map and path prediction.
Track passesFrequency Database
Common satellite downlinks and modes with quick filtering.
Browse frequenciesEquipment Guide
From basic RTL-SDR kits to advanced setups for HRPT/HRIT and ham sats.
See buildsSatellite Gallery
Handpicked receptions from NOAA, Meteor, GOES, ISS and more.
View imagesResources
Downloads, decoders, tutorials, and communities to level up.
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