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Frequency counter up to 70MHz

Herbert Dingfelder known as DL5NEG among radio amateurs have constructed a microcontroller based frequency counter up to 70MHz.

counter_board.jpg

 

Frequency counter can use prescalers what allows reading GHz with 10kHz resolution. Without prescaler device can measure frequency up to 70MHz with 10Hz resolution. I think this is very good what simple schematic can offer. Hex file is ready for download and can be flashed to Atmega16.

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2 Comments

  1. PLEAS SEND TO ME SOME PROJECTS

  2. It is good example how MCU works,but counter needs TCXO in order to be accurat,so please in the future projects,try to create counter with external time base,since this circuit ofering only first four maybe five digit accurat…

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