Soft66IP: An OpenWebRX RTL-SDR Internet Server now Crowd Funding on Kickstarter

Over on Kickstarter a retrofit PCB for RTL-SDRs called Soft66IP has appeared for crowd funding. The PCB includes a 50 MHz upconverter and RF amplifier on board and incorporates space to plug in an Orange Pi Zero single board computer, and an RTL-SDR.

The project is by Kazunori Miura who is the creator of the Soft66 range of RTL-SDR retrofit products. The kickstarter appears to be for the "Soft66IP", which has been around since early 2017. The main difference appears to be that now OpenWebRX is preloaded on the SDCard, and that there is a custom script running on the Orange Pi Zero which allows you to choose between OpenWebRX and HDSDR. Presumably clicking on HDSDR runs an rtl_tcp server, which can then be connected over the network.

The idea is that this system will be used together with software like OpenWebRX, which would enable the RTL-SDR and radio stream to be accessed online from anywhere in the world via an Ethernet connection. Examples of OpenWebRX receivers can be found on, just search for "RTL-SDR" on the page to find relevant examples.

There are several support options, with the main board (without Orange Pi Zero or RTL-SDR) starting at US$22, and US$88 for the main board including RTL-SDR, Orange Pi Zero, enclosure and SD card. The system could probably be home built for much cheaper, but there is a convenience in purchasing a ready to use system. Although if you're interested in HF and want an internet connected SDR, then you might be better off shelling out for a $299 KiwiSDR instead, which is also an OpenWebRX based SDR.

Soft66IP: Main board + RTL-SDR + Orange Pi Zero.
Soft66IP: Main board + RTL-SDR + Orange Pi Zero.

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