KiwiSDR Portal SDR.HU Now Requires a Ham Licence + OpenWebRX Development Discontinued

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The KiwiSDR is a US$299 HF SDR that can monitor the entire 0 – 30 MHz band at once. It is designed to be web-based and shared, meaning that the KiwiSDR owner, or anyone that they’ve given access to can tune and listen to it via a web browser over the internet. 

OpenWebRX is code originally created by András Retzler and a modified version runs on the KiwiSDR devices. This code is what allows them to be accessed online by a browser. The original code can also be used by other compatible SDRs such as the RTL-SDR.

Recently András released news that he is discontinuing work on OpenWebRX due to interest in other projects, but it will remain on GitHub as open source code. András also notes that the security of OpenWebRX will soon be in question as it utilizes Python 2, which has been designated end of life on January 1 2020. In addition, if you’ve been following OpenWebRX since the beginning, you’ll know that in the past OpenWebRX was involved in an legal/ethical issue over open source licencing with KiwiSDR. Althought resolved amicably, Andras also references his frustrations with the open source system in his post. 

We note that development of the KiwiSDR OpenWebRX code will continue as they are considered separate projects.

András also runs the popular KiwiSDR directory, which was/is considered the main directory for finding and accessing public KiwiSDR and other SDR devices running OpenWebRX. Recently the directory was restricted, and now can only be accessed by those with a ham radio callsign. It is unclear why this decision was made as was very popular with shortwave listeners and radio newbies who are typically not hams. But the FAQ notes “The purpose of the site is to serve amateur radio. I decided to restrict access to the receiver list in order to protect the site and its purpose in the long term.

Fortunately, over on his blog, Thomas has noted that there are still other KiwiSDR directories available such as, and

SDR.HU Requires a Login Now
SDR.HU Requires a Login Now