Receiverbook: Online Directory of WebSDR and KiwiSDR Receivers

Monitoring radio communications through web-accessible Software Defined Radios (SDRs) has become a popular facet of the hobby, and Receiverbook serves as a centralized directory for locating these remote assets. The platform aggregates listings for both OpenWebRX+ and KiwiSDR installations, providing a gateway to a diverse array of frequencies and operating modes. My own experience with similar directories highlights their utility for casual listening, DXing, and even troubleshooting local RFI by comparing signals across different geographic locations.

The directory details specific receiver locations, from Bedford, England, to Marahau, New Zealand, and Berlin, Germany. Each entry often specifies the supported frequency ranges, which can span LF, MF, HF, VHF, and UHF bands, including dedicated segments like 80m, 40m, 2m, and 70cm. Many listings explicitly note support for HAM radio, broadcast services, and public two-way radio, making it a versatile tool for various listening interests.

Beyond general frequency coverage, some entries provide granular details about the underlying hardware, such as the SDRPlay RSP1A or RTL-SDR Blog V3, and even the antenna types employed, like the Sirio Gain-Master. This level of detail is invaluable for serious SWLs and hams looking to understand the capabilities and limitations of a particular remote receiver before tuning in.