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..
Category: Raspberry Pi
Raspberry Pi – Update to WSJT-X 2.3.0
WSJT-X 2.3.0 introduces a new logging system that requires the installation of some additional packages. As a result, upgrading is not quite as simple as with previous versions. Here’s a step by step guide. Begin by updating the operating system[…]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..
RTL-SDR Server as a service on Raspberry Pi
NB: Updated 21st Aug 2018: Changes to the rtlsdr.service file to add a start-up delay to ensure an IP address has been allocated before starting the server. NB: This post assumes that you have already installed the RTL-SDR server on[…]Click to read more..
NanoVNA Saver on the Raspberry Pi
NanoVNA Saver is an excellent package that provides a host of useful featuers for owners of the NanoVNA V1 and V2. When looking around the Internet for Pi installation instructions, I found several conflicting and out-of-date posts, so decided to[…]Click to read more..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..
Raspberry Pi Buster – GPS Dongle as a time source with Chrony & Timedatectl
The latest release of Raspbian Buster for the Pi has replaced the familiar NTP application with a lightweight solution using timedatectl. As a result, many of the online tutorials for adding a GPS USB dongle are out of date. After[…]Click to read more..
Raspberry Pi – Fixing a slow mouse
I recently changed my keyboard/mouse combo to a Perixx Periduo-712. When I restarted the Pi, I found that my mouse pointer had become very slow. A quick look around the Internet revealed a fix as follows: To speed-up the mouse,[…]Click to read more..
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 – 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..
PiFace on the Raspberry Pi – Problem Solved!
Introduction I recently wasted many hours trying to get the PiFace board to work with Python. I eventually discovered the root cause of the problem, so have documented it here, both for my own reference, and for anyone else who might[…]Click to read more..
Packet Radio with the Raspberry Pi
Packet Radio TNC with the Raspberry Pi ** Updated 21-2-18 The Pi plus a USB soundcard is all you need to get started with Packet Radio. Instead of using a dedicated hardware TNC, the Pi can be coaxed to do[…]Click to read more..