Raspberry Pi with Multiple Dongles

It is very easy to run multiple instances of the rtl-tcp application on a Pi and so have several dongles being served through a single Raspberry Pi. To do this, we simply have to add some extra lines to the /etc/rc.local file to run multiple instances at boot. For details of how to set-up the…

Using the Raspberry Pi as an RTL-SDR dongle Server

Installing RTL SDR Software NB: Now updated to work with Raspbian Jessie (16/2/2017 release) and the Pi-Zero-W. The instructions listed below show you how to set up a Raspberry Pi for use as an RTL-SDR dongle server. If you would like a ready made solution, I have pre-configured and tested SD cards complete with printed instructions available…

Making a Reduced Size Pi IMG for backups

Here is a technique for creating an image of an SD card (or any other filesystem) and then reducing the size of that image to exclude unallocated space in the image file system. If you are doing this on a Raspberry Pi you will need to ensure your SD card is large enough to hold…

Raspberry Pi Ubuntu 15.10 Blank Screen

I’ve just wasted lots of time trying to get Ubuntu Mate 15.10 working so I could start work the WSJT-X build. No matter what I tried, I always had a blank screen. However, if I ran the card on a Pi with the new touchscreen I had a display. The cause was my screen connection. I…

Upgrading Pi-2 SD card for the Pi-3

Several people have asked if it’s possible to upgrade an existing Pi-2 SD card to run the on the new Pi-3. It can be done, though some of the downloads seem to take quite a long time. To achieve the upgrade you have to update both the OS and the firmware. The following process has…