all about software defined radio (sdr)

high quality software-defined radio (sdr) receivers from dc to daylight for governments, professionals, academics and hobbyists.

northern utah websdr - landing page

this wiki is intended to help identify radio signals through example sounds and waterfall images. most signals are received and recorded using a software defined radio such as the rtl-sdr, airspy, sdrplay, hackrf, bladerf, funcube dongle, usrp and other devices.

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