André, Callsign F1ATB has released a project they call “Remote SDR”. Originally developed for operators of the QO-100 satellite Remote SDR using a Raspberry Pi and a couple of SDRs provides you with a full blown transceiver in your web browser.

Released as a series of Raspberry Pi images on GitHub Remote SDR allows you to connect two SDRs to your Raspberry Pi such as an RTL-SDR, PlutoSDR or HackRF as well as SA818 modules in order to provide you with both remote transmit and remote receive capability in a convenient web-based user interface.

Depending on the Software-Defined radios you choose to use with this project will determine your available operating frequency range anywhere from 1Mhz to 6Ghz. While there are other modes still in development NFM and SSB are the primary modes you’ll have access to with the current release as of the date of this post. This project also has an interface option for gPredict which would allow you to automatically account for Doppler shift during Low Earth Orbiting satellite passes.

The project page provides several examples of various configurations with QO-100 operation in mind and consider the HackRF provided the external TCXO is installed; has the best frequency range and frequency stability.

There are various configurations available depending on the SDRs you have on hand and what your intention is with them. The Full-Duplex nature of the PlutoSDR would make it the simplest of the examples provided as you need only one SDR connected. Please keep in mind that if you plan to use an SDR on the air as a transceiver you must ensure you’re properly filtering your output and are licensed to operate on the given band you are transmitting on.