The following audio files have been provided to support my reviews of the bhi ParaPro EQ200-DSP power amplifier with noise reduction and parametric filtering. The first recording shows an aeronautical VOLMET signal as folows: 0-20 seconds – Origian signal 20-40 seconds – DSP Noise filter set to the mid position 40-60 seconds – DSP Noise filter […]
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 through their function: Airspy.sh, AirspyHF.sh and DVB-T.sh – These scripts automatically change the Spy Server […]
Running SpyServer on a Raspberry Pi-3
NB: UPDATED 5th August 2017 – The following issues are fixed: Wi-Fi was unavailable after upgrading to Stretch. Reduced bandwidth option stuttering – fixed by a new version of Spy Server released 14/6/17 Changed the auto-run option to use /etc/rc.local and added an IP check and 30 second timeout. Installing SpyServer on a Raspberry Pi 3 […]
137MHz Polar Orbiting Weather Satellites
In my Radio User Decode column I’ve been describing a receiving station for the NOAA polar orbiting weather satellites and in this post I’m including a few examples so you can see the station’s capabilities. All the images are taken directly from WXtoImg with no other enhancements. The station here comprises the following: QFH Antenna as […]
QFH Antenna Mast Drilling Template
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 for the centre of the 137MHz weather satellite band. The only problem I encountered was […]
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. Start with a fresh download of the latest Raspbian operating system. These instructions are based […]
Sample DMR signal
For those reading my January 2017 Decode column, here’s a sample of a DMR repeater signal:
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/
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 a very simple process. To Upgrade: Open a terminal session type: sudo do-release-upgrade Answer y to the […]
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 upgrade you have to update both the OS and the firmware. The following process has […]