Projects for the amateur radio engineer. Hardware, software, electronics and test equipment for the amateur community.
Hi again! This project directly “beams” you back to the “Good ol’ 80s” when there was no stuff like “DDS, “OLED” or even “SDR” or other modern technology we today use to build our radios. I designed this transceiver using the “old school” techniques because in a German QRP forum on the internet some hams…
Foreword When I built the semi automatic tuner two years ago I did not take into account some possible shortcomings the device could suffer from. The first of these I noticed when I exceeded power levels of about more or less than 50 watts. In some cases there was rf incoupling leading the microcontroller to…
On one hand sunspot cycle is on the decline. Conditions on the higher bands tend to deteriorate gradually. On the other hand I wanted a very compact transceiver for outdoor (particularly holiday) activities. Besides this and due to the fact that I prefer monoband operation when on tour, the potentially ideal band had to be…