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bitx20 v3 build – vfo

I’ve got the main bitx board built enough to test, so now I need the bfo and vfo. I put together an arduino nano, an si5351 breakout board, and a small oled display on a breadboard. I modified some of the vfo code I’ve used before and soldered clk0 and clk2 to the bitx with some rg174 coax.

I don’t have a 20 meter antenna up yet, so I can only test with a signal generator. The vfo (or the signal generator) is a little off, but the receiver seems to be working okay. I get a clear tone by holding the signal generator lead near the board.

Here is the code so far:


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