Kestrel Listen

Community-Powered Radio Monitoring

Kestrel Listen is built and run by the community that uses it — no subscriptions, no ads, just volunteers sharing what their own receivers hear. Every node is independently owned and operated, linked into a resilient, decentralised network with no single point of failure.

Getting started is simple: an RTL-SDR or HackRF and a Raspberry Pi is enough to add your own sensor and start contributing in under an hour. Read how it works for what hardware you need and what happens after you register.

The same network also feeds into Madrock Sensor Fabric's GNSS jamming and spoofing detection -- when something's found, an indicator appears on the Globe view below.