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..
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..
Here you will find a selection of sound files illustrating the noise elimination potential of the new bhi Dual In-Line and Compact In-Line units. For more information or to order, please visit the bhi web site. The sound samples were made by[…]Click to read more..
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..
I’ve just completed a brand new SD card image that contains the motionPie software, operating system and comes with 5-pages of printed instructions. motionPie can handle the Pi camera, USB or network webcams and is a great way to set up a[…]Click to read more..
Having recently reviewed the new bhi Dual In Line Noise Elimination module for RadCom I have posted audio recordings of the DIL’s noise reduction performance below. The recordings were made by replaying an IQ recording of part of the 14MHz[…]Click to read more..
For those reading my January 2017 Decode column, here’s a sample of a DMR repeater signal:
In my last Decode column I gave details of the UKHASnet network along with links on how to build your own super cheap nodes and start experimenting. Having spent some time playing with these I have a few tips that[…]Click to read more..
One of the few weaknesses of the Raspbery Pi is the location of the SD-Card socket that protrudes from the end of the board. If handled clumsily it is very easy to snap-off the retaining lips on the card carrier[…]Click to read more..