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Auteur: Oude Heer

Stage 4: The control electronics

Geplaatst door Oude Heer op 2015-04-062023-06-03 in LimaSDR

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…

Block diagram

Geplaatst door Oude Heer op 2015-04-052023-06-03 in LimaSDR

Here is the block diagram of the complete system (click on it to enlarge):

Stage 3: Boxing it

Geplaatst door Oude Heer op 2015-04-042023-06-03 in LimaSDR

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…

Stage 2: Working, and now what?

Geplaatst door Oude Heer op 2015-04-032023-06-03 in LimaSDR

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…

Stage 1. Building the unit

Geplaatst door Oude Heer op 2015-04-022023-06-03 in LimaSDR

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…

Lima SDR

Geplaatst door Oude Heer op 2015-03-012023-06-03 in LimaSDR

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…

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Recente berichten

  • Hamshield V/UHF Transceiver (4 – finishing up)
  • Hamshield V/UHF Transceiver (3 – de bouw)
  • Hamshield V/UHF Transceiver (2 – functies)
  • Hamshield V/UHF Transceiver (1 – introductie)
  • Een RTL-SDR server in een RPI

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