Frequency Source

1 Comment

  1. Steve Bosshard (NU5D)April 5, 2023

    There was a steep learning curve for me using the Digispark AT Tiny 85. The ATTINY85 is a micro-controller used to store and send frequency data to the SI 5351 Clock / Oscillator. A software package called Arduino IDE is used to program the ATTINY85. (So far I have been unable to use Win11to program the ATTINY85 but Win 10 Worked OK). The reason for a crystal replacement project is that made to order crystals for communications radios are hard to find. In the US the only source I have found is BOMAR CRYSTALS –


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