The following links contain the audio recording and the Excel spreadsheet used for my WSJT-X vs JTDX comparison. The following link will download the audio file (WAV format) used for the performance comparison. This was recorded in the late afternoon[…]Click to read more..
Category: Radio Notes
WSJT-X 2.3 – Transmit Audio Failure with PiOS
Thanks to a report from John, GM0WRR, I have identified a problem with WSJT-X 2.3 and the use of PulseAudio on the Raspberry Pi. When setting the input and output soundcard you would normally set both to pulse. However, if[…]Click to read more..
Raspberry Pi – Multiple Instances of RTLSDR as a Service
My Raspberry Pi RTL Dongle server cards run the server as a service under systemd. This has several benefits including a better-defined start and the facility to stop/restart a service gracefully. One of my customer recently asked if it was[…]Click to read more..
RSGB Convention 2016 Slides
As promised at my lecture this afternoon, I have posted the slides and you can view and download themvia the following link: http://www.authorstream.com/Presentation/mikerichards1610-2936133-pi-pitaya-shack-rsgb-convention-2016/
SimSmith on the Raspberry Pi
Anyone using a VNA in the workshop will find SimSmith an excellent tool. By combining the analysis of S parameters from a VNA with a circuit simulator, SimSmith becomes a powerful tool for designing matching circuits. In this post, I’ll[…]Click to read more..
Installing & upgrading CQRLOG on a Raspberry Pi
Updated 17 July 2020 to add missing wildcards from the apt install line! CQRLOG is one of the most complete contact logging programs for Linux and the Raspberry Pi, but building the latest version from source can be problematic. In[…]Click to read more..
Airspy – Spy Server – Useful scripts
I’ve had Spy Server working very successfully with the Pi 3 for a while now and have written a few time-saving scripts that others might find useful. These can be found in the zip file below. Here’s a quick run[…]Click to read more..
Upgrading Ubuntu Mate to 15 to 16 on the Raspberry Pi
The Ubuntu Mate OS works very well on the Pi so is well worth a try. If you have Mate 15 already installed and want to update to the recently released Mate 16 you’ll be glad to hear that is[…]Click to read more..
NanoVNA Saver on the Raspberry Pi
UPDATED 1st August 2022. nanovna-saver.py chmod updated to make the file readable by the Py interpreter. NanoVNA Saver is an excellent package that provides a host of useful featuers for owners of the NanoVNA V1 and V2. When looking around[…]Click to read more..
Raspberry Pi – Transfer WSJT-X, JS8Call and FLDIGI settings to a new image
Several customers have asked me how they can move their settings and macros from one Pi image to another. This post attempts to simplify the process. To preserve your settings, you just need to copy a few files from the[…]Click to read more..
Running SpyServer on a Raspberry Pi-3
*UPDATED 31st October 2018: A few typos corrected and instructions updated for Stretch. Also made amendments for Airspy-Mini receiver. NB: Spy Server is undergoing active development so it’s important to regularly update both Spy Server and SDR Sharp. Introduction SpyServer[…]Click to read more..
Upgrading Pi-2 SD card for use with 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[…]Click to read more..