Bill Sykes and Bob Cobey have produced of the best home-build designs for a weather satellite antenna on their web site at: QFH Antenna. Their instructions are easy to follow and the result is a robust QFH antenna that is tuned[…]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/
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[…]Click to read more..
PW Data Modes ESP8266 Correction
PW Data Modes Fig 6 Corrected I made a mistake in the diagram pin numbering showing the serial connection to the Olimex ESP8266-DEV board. The ground should connect to pin 2 as shown using the numbering in the revised[…]Click to read more..
Using a ThermApp Camera with a Raspberry Pi-3
In this tutorial, I’ll show you how to install the software required to use the ThermApp thermal camera with the Pi. Once installed, you will be able to display thermal images using a standard video player such as VLC, mplayer, etc.[…]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..
Making a Reduced Size IMG for backups or sharing
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[…]Click to read more..
Arduino Code for 0-500MHz, 1nW to 100W RF Power Meter
Here is the code for the Arduino in-line power meter that will feature in my Data Modes column in the August PW. Copy and paste the code below into your Arduino IDE: ————————————————————————————————————————– /* This sketch uses the Adafruit i2c/SPI[…]Click to read more..
Sample DMR signal
For those reading my January 2017 Decode column, here’s a sample of a DMR repeater signal:
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..
Using the Raspberry Pi as an RTL-SDR dongle Server
Installing RTL SDR Software NB: UPDATED 25th August 2021 Updated install commands Manual Installation These instructions assume you are starting with the latest Raspberry Pi OS from the Pi site. NB: The Lite version is all you need. Before you[…]Click to read more..
MotionPie Links
It seems the shortened MotionPie links I provided in my RadCom article are not working. I don’t know the cause of the problem yet but I’ve posted the full links below: MotionPie Download https://github.com/ccrisan/motionPie/releases SDcard Formatter https://www.sdcard.org/downloads/formatter_4/ Win32DiskImager http://sourceforge.net/projects/win32diskimager/ Sorry[…]Click to read more..