I have purchased a touch panel for the RPI. This makes a very nice compact unit, and I am quite happy with it.
Auteur: Oude Heer
The Raspberry PI2 (RPI2) is a very nice, small and powerful little computer. It is capable of doing all the DSP tasks to decode and code the audio signals to and from the SDR hardware. I managed to install QUISK…
The construction of the control board is underway. It is mainly the Arduino Micro fitted on a prototyping PCB, with some additional hardware (switching transistors, resistors, etc.) and pin headers for connecting it to other parts of the transceiver later…
One of the nice things of this setup is that it uses a soundcard embedded in the unit itself. First of all, it is a good idea to use an external soundcard. The soundcards usually found in laptops are not…
he control electronics have to perform the following tasks: Everything, except point 5 (Bias) is handled by the Arduino Micro microcontroller. I started building it up on my experimenting unit (a power supply with +&- 15V and 5V outputs, and…
Here is the block diagram of the complete system (click on it to enlarge):
he shopping list for the complete transceiver is quite long: After I emptied the 19″ casing from all the stuff that made up the power supply, I fitted all the parts in the unit. The box was already full of…
I built the kit according to the very well written (German) description. Since it describes tests during the various stages it is very easy to verify the correct working of the unit during the building process. In the end, it…
Back in 2010, there was no kit available, at least not in the Netherlands. You could order the PCB’s directly with Bernd, and Reichelt in Germany did have a kit with all the electronics available. Unfortunately, at that time Reichelt…
This blog will show the progress of my Lima SDR project. For those of you who are not familiar with this kit, here is some background info. Lima SDR is a Software Defined Radio transceiver for the HF bands, designed…