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Troubleshooting and repairs

On the following sites you will find repair and operating instructions for repairing and maintaining your devices. Also you can free download all these users guide! These materials are for personal use only. Manuals for repair of mobile phone https://www.manuals.co.uk/telephone/mobile-phones…

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DCF77 Signal with Arduino

The DCF77 signal is a puls-signal with AM modulation with carrier frequency 77.5kHz. It has a small bandwidth. The carries include time and date information and will be transmitted in a simple binary-coded format by on-off modulation of the carriers.  (100ms/200ms)…

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