Seeing is believing ! I programmed the frequency synthesiser, which I am in the process of building, for an output signal on 137.700KHz. Both the display on the Thandar PFM200A frequency counter, ( connected to the output ), and the display on the synthesiser, ( connected to the microprocessor ), agree. What a relief.
The next task is to make it tuneable up and down, ( probably in 1 and 10Hz steps ), implement band changing and at the same time make sure the display updates correctly.
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