Amateur radio blog by Adrian Leggett – Newark – England
In October 2018 I started using a Comtech 23cm transmitter for my ATV operations. Rather than use the 8-way dip switches to tune the transmitter, I decided to work on a project to develop a rotary LCD tuner using an Arduino Uno as the micro-controller. This article shows how I did it, including the code.
I made these test cards for my Amateur Television (ATV) station on 11th October 2018 using Adobe Photoshop and Camtasia Studio 2018.
This article shows how I have made a mains filter that is extremely effective in reducing and in some cases eliminating completely EMC from the electricity supplying my shack.
This post shows a technique I’ve used to straighten 10mm Microbore copper tube and forms one of a series of video’s I’ve made to show how I’ve constructed my Quadrifiliar Helix antenna or QFH as it’s more commonly known.
Known to exist since World War I, numbers stations are believed to have been used or still being used, for transmission of coded messages to intelligence officers operating in foreign countries.