![]() ![]() To correct this I simply reset these values whenever the SWEEP button is pressed. I found that the values of the 'startUpTime' and 'startDownTime' variables became very large whenever there was a delay in receiving any morse input. Budd also indicated the reset should be used occasionally. The only way to fix it was to press the reset button. This was most apparent when there had been no morse input for a while. When running the original WB7FHC version it used to get itself into a mode where it would no longer decode morse. Ive also removed the sidetone and speaker connection as I prefer a softer sine-wave side tone which I can generate externally. These include a 'live' adjustable farnsworth setting, a much faster sweep tuning function by reducing the tuning range, and changes to the general operation and LCD layout. I have made some software changes to suit my circumstances. ![]() The CW decoder uses the same basic LM567 circuit designed by Budd Churchward WB7FHC which is connected to an Arduino Nano. A Morse Code Decoder based on WB7FHC's Simple Morse Code Decoder. ![]()
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