“Remote SDR” is a web application allowing to remotely control an amateur radio transceiver between 1 MHz and 6 GHZ. Its first application was the duplex control of a transceiver dedicated to the QO-100 / Es’Hail 2 geostationary satellite.
The set is made up of:
- a reception channel: SDR (Software Design Radio) + an Orange PI nanoprocessor
- a transmitter channel: SDR + an Orange PI nanoprocessor
- a PC or tablet controlling the SDRs with “Remote SDR” running on a web browser like Chrome or Edge.
This configuration makes it possible to locate the HF part near the antennas, which is essential for links above GHz. In the transmission chain, amplifiers must be added to bring the HF signal to the desired level. The SDR of the reception chain can be either an Hack RF One or an RTL-SDR depending on the frequency band you want to cover.
The “Orange Pi” are processors similar to the Raspberry Pi running under the Armbian Operating System. They do part of the signal processing.
The reception chain processed in the Orange Pi is described in the article Remote SSB receiver.
The transmission chain processed in the second Orange Pi is described in the article Remote SSB transmitter.
Remote SDR provides the part of the signal processing necessary for data visualization and audio management.
Video – Intro
The code
You can choose between installing the source code yourself on an Orange Pi One Plus or burning an image. Both are available on Github / F1ATB. For installation procedures the following article details them.
Posts on Remote-SDR
- Remote SDR – Purchase
- Remote SDR – Setup
- HackRF – RTL-SDR – GNURADIO Setup
- Remote SDR – Man Machine Interface
- Remote SDR – Signal Processing
- Remote SDR
- Web Client to GNU Radio
- GNU Radio to Web client
- Remote SSB Transmitter
- Remote SSB Receiver
- GPIO on Orange PI One Plus H6
- TCXO installation on HackRF
- Q0-100 Transceiver with 2 SDR
Hi André,
congratulations for this very nice work.
I have build all the hardware for the remote SSB tranceiver; but I need a step by step explanations to setup the two Orange Pi One Plus and to install Remote SDR software on my PC.
Have you planned to publish that?
Thanks in advance
André F1FHK
André
I currently finished some modifications to adapt Remote SDR for the screen of a smartphone.
Then I will start the explanation of the installation and the release of the code.
I should start it end this week.
If you want to contact me directly, have a look on qrz.com
My website has now a new adress
https://f1atb.fr
André
I have published now all the posts adressing the subject of Remote SDR on my website.
The main page in english is here: https://f1atb.fr/index.php/2020/07/21/remote-sdr-2/
The main page in french is here: https://f1atb.fr/index.php/fr/2020/07/21/remote-sdr-distant/
The source code is also available on GitHub: https://github.com/F1ATB/Remote-SDR
Don’t hesitate to contact me if you need some explanations.
Best Regards
F1ATB André
https://f1atb.fr
Helle Andre,
Is there a possibility to transmit CW via the HackRF?
73
ON4CGW KURT
Yes it is possible to generate a CW signal with Hack RF. It’s easy to do. I have not yet implemented the function in Remote SDR. It’s on my list of improvements.
Regards
André
Hello André,
congratulations on this very nice project. I have built until now, only the RX part and I’m using raspberry pi4 (2Gb) SBC with RTL-SDR and it seems working very well, I liked the sound, seems stable even accessing by internet, also like the way it works, I mean I only need a browser to work, no program to install. I just followed your setup instructions for the Orange Pi. Waiting now for an HackRF to complete the TX part. I hope you continue with the project …
Regards,
Jacinto
CU2ED