Software Defined Radio

supersdr

supersdr connects to KiwiSDRs — internet-connected SDR receivers that people run publicly around the world. That flips the usual model: instead of needing the right hardware and antenna for a band, you connect to a KiwiSDR that’s already sited where the signal is good, and listen through it. It’s invaluable for HF work (where a good antenna is a real commitment), for hearing what a frequency sounds like from another continent, and for monitoring signals you can’t receive from where you are.

supersdr is a graphical client, launched into its own window from Security → Software Defined Radio → supersdr. Installed from the AUR.

Using it

1. Find a public KiwiSDR — the KiwiSDR public-receiver directory is one of the Oniomarchy webapps, and it lists hundreds of them by location and band coverage.
2. Launch supersdr and point it at a receiver’s host and port.
3. Tune and listen through the remote radio, with a waterfall just like a local receiver — you’re driving someone else’s antenna over the network.

Because it needs no local SDR hardware at all, supersdr is the one tool in this category you can use the moment Oniomarchy is installed, before you’ve bought a single dongle. Pair it with the SIGIDWiki signal guide to identify what you’re hearing.