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GPSO pcb

My previous 10 MHz frequency reference having broken down, the question was whether to repair it or move on.
After reflection, I decided to equip myself with a 10 MHz reference disciplined by GPS (GPSDO) in order to obtain the best possible accuracy.
After some research on the Internet, I found ready-made products at affordable prices and some descriptions of amateur achievements.

I chose the option of making the version proposed by DL4ZAO / DL7UKM . On one hand because there is a detailed description (in German) and that the author offered the printed circuit at a correct price, and on the other hand to learn according to the formula " Build and learn ".
The assembly revolves around an Arduino Nano and software is offered by Michael DL7UKM. All the more reason for my choice, now having a good knowledge of this platform.

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https

My site has undergone a few changes this weekend (06/05/21) ...
To be more compliant with the latest Internet requirements and to improve the RS card.

- Change to secure version. The addresses are now to be used in https. The old addresses are routed automatically in https.
- The few Cookies used on this site, in particular on Rain Scatter cards, now comply with future security requirements.
- The Rain Scatter map has undergone some changes, in particular on the source of the radar images which now cover all of Europe, the abandonment of the animated version, the speed of execution.

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20210430 100326 During my SOTA activities, I often raged on the fact that the builtin CW keyer in my QRP SW-3B transceiver only had one memory ... It is indeed very practical to have several of them in order to free your hands to do something else such as finishing writing the last QSO on the logbook or making a somewhat specific call. The idea therefore sprouted to produce a CW memory manipulator that would meet the following conditions
  • 3 on the fly programmable memories
  • low power consumption
  • easy battery supplying
  • reduced size
  • easily reproducible

Having already built a prototype of the fabulous K3NG keyer, I decided to use this project by adapting it to my needs.

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